Thursday, October 10, 2019
Appropriate title poem for the collection Essay
To what extent, in terms of subject matter and style, do you consider ââ¬ËHigh Windowsââ¬â¢ to be an appropriate title poem for the collection? High Windows is a collection that deals with several interlinking themes. One of the most obvious is that of windows, which are used throughout the poems as an analogy for reflection, retrospection, observations and external or internal influences. Other themes such as death, religion, youth, sex tradition, society and outside observers also occur frequently throughout the collection. It could be said that the poem High Windows includes and explores many of these themes, and as such provides a good summation of the content of the others. Its form and structure can also be compared to the rest of the collection ââ¬â Larkin uses some very specific techniques and structural decisions within several of the poems, and High Windows is perhaps one of the best examples of where these techniques are used to the best effect. In High Windows, Larkin employs free verse with a simple rhyme scheme. This could be said to be fairly unusual, as in other poems such as To The Sea he uses very complex rhyme schemes. He often chooses to rhyme between stanzas, and this is clearly a very conscious and crafted decision. Larkin also makes use of traditional poetic forms ââ¬â for example, The Card-Players takes the form of a sonnet. The fact he has chosen to use free verse could show that High Windows has a modern setting, unlike The Card-Players which is a narrative set around the 17th century. It could also be a suggestion that the collection deals largely with universal and simplistic theme such as life and death, and thus the simplicity of the rhyme scheme epitomises this. Other structural decisions that appear in High Windows can also be seen in other poems. Larkin often uses italics to show that someone other than the main narrator of the poem is speaking. ââ¬ËThatââ¬â¢ll be the life; no God any more, or sweating in the darkâ⬠¦ ââ¬Ë is being spoken by someone of the previous generation looking at the speaker in their youth. This also occurs in Sympathy in White Major, which includes such lines as ââ¬ËHe devoted his life to othersââ¬â¢, which seems to be being said by someone at the speakerââ¬â¢s funeral. The Explosion includes italicised lines being spoken by a priest ââ¬â ââ¬ËThe dead go on before usâ⬠¦ ââ¬Ë ââ¬â and Vers de Societe includes such lines as ââ¬ËAll solitude is selfishââ¬â¢ and ââ¬ËVirtue is socialââ¬â¢, which seem to be an outside voice reproaching the speaker for his behaviour. High Windows can thus be clearly compared to other poems that use this technique. By the end of the collection, the use of italics is recognisable. Larkin also often makes use of a ââ¬Ëfinal imageââ¬â¢ at the end of his poems, something that is meant to sum up the content of the poem. In High Windows, the line ââ¬ËRather than words comes the thought of high windowsââ¬â¢ is one of the most memorable. Similarly, The Explosion has the image of the ââ¬Ëeggs unbrokenââ¬â¢, and Moneyââ¬â¢s entire last verse is occupied by the image of ââ¬Ëlooking down from long french windowsâ⬠¦ ââ¬Ë. High Windows is the only one that includes the prelude ââ¬ËRather than wordsâ⬠¦ ââ¬Ë, and illustrates this technique very well. In this sense, High Windows makes a very appropriate title, both as the title of a poem and as an image. The juxtapositioning between coarse and lyrical language is also present in High Windows, as in various other poems. This coule be said to show the difference between traditional poetic language and more modern poetry. High Windows has a transition from the beginning, and lines such as ââ¬Ëâ⬠¦ I see a couple of kidsâ⬠¦ ââ¬Ë and ââ¬Ëâ⬠¦ I guess heââ¬â¢s fucking her and sheââ¬â¢s wearing a diaphragmâ⬠¦ ââ¬Ë, to the end, with lines such as ââ¬Ëthe sun-comprehending glassâ⬠¦ ââ¬Ë and ââ¬Ëthat shows nothing, and is nowhere, and is endless. ââ¬Ë This juxtapositioning is used in This Be The Verse, between ââ¬ËThey fuck you up, your mum and dadââ¬â¢ and the seemingly out of place ââ¬Ëâ⬠¦ it deepens like a coastal shelf. ââ¬Ë Similarly, Sad Steps begins with the image of ââ¬ËGroping back to bed after a pissââ¬â¢ and ends with ââ¬Ëthat wide stare is a reminder of the strength and pain of being youngââ¬â¢. The theme of observation and looking down through a window is also a common one throughout the collection. The image of High Windows is one that provides an appropriate title, since it could be a metaphor for themes such as reflection upon life, which is clearly prominent in poems such as Sympathy in White Major, Dublinesque and The Explosion. Sad Steps makes use of a similar window metaphor ââ¬â the speaker seems to have an epiphany after ââ¬Ëparting thick curtainsââ¬â¢ and seeing the moon. The Old Fools also includes mention of ââ¬Ëlighted windowsââ¬â¢ that represent the memories of somoneââ¬â¢s life. Money has the image of ââ¬Ëlooking down from long french windowsââ¬â¢ at a town that is meant to represent various aspects of life. High Windows also deals with the concept of religion. It suggests that religion was something that older generations were forced to think about when they didnââ¬â¢t want to, and that now, this has been replaced by sex and freedom. The phrase ââ¬Ëbonds and gesturesââ¬â¢ suggests that the speaker believes that religion and other such ââ¬Ërestraintsââ¬â¢ were only meant as a show, and were not really what people believed in. High Windows shows a rather cynical view of religion, suggesting that it no longer matters in modern society. This view is mentioned briefly in The Building as well, with the mention of ââ¬Ëa locked churchââ¬â¢ and the comparision between patients of the hospital and an ââ¬Ëunseen congregationââ¬â¢. Vers de Societe uses the line ââ¬Ëplaying at goodness, like going to churchâ⬠¦Ã¢â¬â¢, clearly suggesting that Larkin believes religion to be a shallow waste of time. In this manner, High Windows accurately reflects what appears to be Larkinââ¬â¢s view on religion. However, in poems such as The Explosion, religion is viewed in a very different way ââ¬â it becomes something that offers hope, and something to be revered. It mentions that the dead men ââ¬ËAre sitting in Godââ¬â¢s house in comfortââ¬â¢. As this is the final poem in the collection, it could suggest that the actual message Larkin is attempting to convey is one of hope and faith. As High Windows suggests the opposite, it could be considered a misleading title poem. Throughout High Windows, many of the poems explore the theme of young people being somehow ââ¬Ëseparateââ¬â¢ to the older generation. To do this, Larkin often makes use of a speaker who is outside the events of the poem and observing the actions of others. The speaker of High Windows seems to be a middle-aged man looking at teenagers. There is a sense of the cyclic nature of life in this poem, as he also alludes to the fact that someone older than the speaker probably watched him when he was young. This also appears in Annus Mirabilis. The youth of today are often connected with sexual freedom ââ¬â Larkin is very frank about ââ¬Ëbonds and gestures pushed to one sideââ¬â¢ allow the young to have sex and be more free. This is similar to the ââ¬Ësort of bargainingââ¬â¢ mentioned in Annus Mirabilis. This Be The Verse also includes the cyclic nature of life. The speaker claims that ââ¬ËMan hands on misery to manââ¬â¢, which suggests that every generation is similar to the last, just slightly different, and this continues throughout all of life. Because High Windows is so similar to many of the other poems and show so well the main themes of the collection, I do think that it is a very appropriate title poem. However, there are also many contradictions within the collection, and so it would be almost impossible to pick one poem that shows every element of the collection. High Windows serves as a good introduction to many of the concepts discussed within the collection, and also paves the way for further exploration of these themes.
Wednesday, October 9, 2019
The traditional view of the legal supremacy of the UK Parliment Essay
The traditional view of the legal supremacy of the UK Parliment withstood all challenges to it. The UK's membership of the European Union has though finally ki - Essay Example on of the statute by both the Houses of Parliament and the grant of Royal Assent for those statutes, then the courts do not question the validity or legitimacy of the statutes; and only apply them. In Edinburgh & Dalkeith Railway Co. v Wauchope, the plaintiff railway company had obtained a private Act for its purposes. The defendant approached the court and argued that this private Act was detrimental to his interests and that it affected him unfavourably. He beseeched the court to examine the legitimacy of the Act. The court refused to intervene in the matter on the grounds that the Act had been passed in both the Houses of Parliament, and that it had also received the Royal Assent. Consequently, the court rejected the plea of the defendant. Thus, courts comply with statutes that have been properly enacted by Parliament (Edinburgh & Dalkeith Railway Co. v Wauchope). The tendency of courts in dealing with the legitimacy of statutes, enacted by Parliament was clearly exhibited in Ex Parte Canon Sewyn (Ex Parte Canon Sewyn) and Pickin v British Railways Board (Pickin v British Railways Board). The Factortame case challenged this sovereignty and compelled the English courts to suspend legislation that had been enacted by Parliament in due course. As such the Factortame case proved to be a major blow to the constitutional provisions of Parliamentary sovereignty. In R v. Secretary of State for Employment (R v Secretary of State for Employment, ex p. Equal Opportunities Commission); the House of Lords, on the basis of the Factortame decision, adopted a much more liberal approach. The Factortame decision had clearly demarcated the sovereignty of the Parliament; and this made it possible for their Lordships to bring about far reaching changes to the constitution. In this regard, their Lordships, refrained from instructing the Secretary of State and they also did not inform him that the EC law was being breached by him. The House of Lords restricted their intervention to
Tuesday, October 8, 2019
Carry Trade Essay Example | Topics and Well Written Essays - 1250 words - 1
Carry Trade - Essay Example e all too apparent that in the globalised and networked economies, no country can consider itself safe, if there are adverse signals from one corner of the world. Carry trade is termed to be an important factor in such a scenario, which has led to cascading effects for majority of exporters and manufacturers of cars and electronic products. While on the one hand exports are down and production are down, on the other hand a large number of job losses is causing further slide in economy. This raises the curiosity about the importance of carry trade in this scenario. Carry trade, as the name suggests is the trading activity that one indulges by carrying forward the returns or losses of the holdings by an individual or a business entity. Yen has been a popular instrument amongst the trading community as an important tool for holding foreign exchange and dealing in financial transactions. Selling the Yen at lower interest rates and then using the funds for purchasing higher interest curre ncies like dollar or pounds would yield considerable profits. Such a carry trade prospered, with the hope of sustaining the higher swap ratio and lower interest rates on Yen. But, with western economies reeling under recession, the Yen has considerably become strong, resulting in some loss making propositions for Carry trades. This has brought the issue of carry trade in focus. This study is an effort towards analyzing the trends in Carry trade over the years and its impact on the economic conditions of different countries. An effort will also be made to foresee the futuristic trends while analysing and comparing the development of the markets. Economic activities, financial services, and banking have experienced quite a few changes in the last couple of decades. With the opening up of economies, the industrial activities saw an upsurge on global scale. The financial system around the world also saw need to have a matching regulatory mechanism. The exchange rates became more
Monday, October 7, 2019
Explain a Marketing concept for MKGT 3000 Essay Example | Topics and Well Written Essays - 500 words - 1
Explain a Marketing concept for MKGT 3000 - Essay Example We would be discussing few major factors that significantly impact purchase behavior and consumption pattern of the products that are used in marketing a product. Customersââ¬â¢ purchase behavior is quite complex because it is intensely influenced by socio-economic and psychological paradigms. It is true that consumers purchase products only when they perceive the need for it. But at the same time, the need could have triggered either by advertisement or by observing other people which could lead to the purchase of the product. Various factors like price, buying value, consumption value and after sales performance add credibility to the purchase. If customer is satisfied, the organizations are not only able to retain them but they are also liable to get new ones through word of mouth publicity that greatly establishes their market credibility. Arnould et al (2004) assert that consumer behavior is also motivated by desired goal that is need based. Products that are bought mainly as a lifestyle statement are prompted by motivated goals. Luxury brands and trend setting goods are major indicators of changing lifestyle pattern that people are ready to adopt to keep up with the times. People are prone to adopt new lifestyle that reflects that changing socio-economic status in society. It also reveals their new value system, tastes and indeed changing preferences.
Saturday, October 5, 2019
Marketing Management Class Discussion wk1 Essay Example | Topics and Well Written Essays - 250 words
Marketing Management Class Discussion wk1 - Essay Example Branding is vital for mineral water, as one may copy products and a place on quality. The main distinct factor that may distinguish the mineral water from other brands. Specialists in marketing urge that any given product (Douglas, 2010) For instance, water can get branded viably. The wellspring of the water gives us a decent establishment to differentiation if youre going to take advantage of the brand society; you begin with the peculiarity of the source The main proposition within branding the product is to make sure is recognized and identified easily within the market. This will ensure there is a mass loyalty in reference to quality and trust of the customers. It is vital to portray positive reaction of the product within the target market and the buyer.The item, product and, a physical item offered to the market is bottled mineral water. In regards to physical items, it likewise alludes to any product or service that is a piece of the advertising. Item choices incorporate viewpoints, for example, appearance, bundling, administration, guarantee, and so forth (Douglas, 2010) the pricing of the product and the estimations should be affordable to the target buyers. Valuing incorporates the rundown cost, as well as rebates, financing, and different alternatives, for example, renting. The place where the mineral water will be sold includes to wholesalers and retailers in the. Spot (or position) choices are those connected with channels of distribution that serve as the methods for getting the mineral water the water to the target clients. In conclusion, for the mineral water to be used within the entire market, the manager should deploy great marketing concepts, starting from communication, production, advertising, distribution, and brand positioning and customer retention. The manager should also apply the marketing mix to ensure the mineral water penetrates the market. Furthermore, the information about competitors and how to deal
Friday, October 4, 2019
Total cost minimization Essay Example | Topics and Well Written Essays - 750 words - 1
Total cost minimization - Essay Example This essay paper provides a detailed discussion about information gathering, individual and teamwork, written communication skills, communication tools, professionalism, relationship, economics and project management in relation to Ford Company and its bid to minimize its total cost Information gathering It has been necessary for Ford to conduct an internal investigation and gather information. The investigations have been to assess performance levels, safety concerns, employee misconduct, harm to property, sexual harassment, attitude, employee capability, and theft cases. Internal investigations are done to resolve challenges or avoid moral hazards. This has helped Ford company avoid substantial legal and financial costs. A poorly done internal investigation could lead to negative effects such as negative publicity, distraction of employees from their work, a leeway to moral hazards among employees and negative impact on employee morale. These negative effects will create unnecessar y costs. The company has been thorough when it comes to internal investigation and corrective measures, and has managed to reduce the costs related to the mentioned effects. Prior to engaging in any investigation, the technical team select among the alternatives methods, the cheapest and most effective, to reduce costs involve (Banham, Russ & Newman 24) 6. Individual and teamwork 6b. Individual and teamwork Working as an individual is beneficial amongst few persons who are productive when doing a task as an individual. However, Teamwork is fundamental for entrepreneurs. Henry Ford, the founder of Ford Company was a great achiever because he believed in teamwork. In 1947 Ford Henry said that working together eventually boosts success. This allowed the management team to ride on an indefinite mandate to set up skilled and motivated task force. It is cheaper to harmonize the goals of employees with that of the Ford Company, than to face individual employees. The sense of team spirit wi ll automatically influence employees who appear incorrigible. Fordââ¬â¢s success is likely to rely on teamwork. (Hitt & Michael, p 15) Communication Skills a. written Communication is fundamental for success of an organization. Communication channels define the path that information follows from one employee to another. Ford Company has an effective communication channels both for external and internal communication between employees. Henry ford, founder of Ford Company considers listening as secret to success. Fordââ¬â¢s human resource department considers poor listeners as expensive employees. In bid to minimize communication related cost, verbal communication is preferred when exchanging personal information within the Company. Written communication is also preferred when handling Company related information, which requires verification. Consequently, the company has a programme designed to develop employees writing and listening skills. Additionally, they are trained on co st effective use of the available communication resources (Hitt & Michael 21) 7c. Communication tools Ford Company has been using several communication tools to inform their customers on various products on offer. Among them are advertisement, sales endorsement, publicity, personal vending and public relation. Companies use various combinations of these tools for marketing purposes. Whereas promotion involves fee payment, sales promotion, public relations, and personal vending are not. In the companyââ¬â¢s attempt to minimize cost, it has resorted to use of communication tools such as sales endorsement, publicity, personal vending and public relations. They have involved a great utilization of the internet resources to reach their clients in various geographical locations. The internet resource has played a very significant role in valuable time administration because numerous
Thursday, October 3, 2019
Enhancing IEEE 802.11 Wireless Networks Essay Example for Free
Enhancing IEEE 802.11 Wireless Networks Essay Abstract à à à à à à à à à à à The IEEE 802.11 standard for wireless network is a very important standard especially today that wireless technologies are very popular due to its effectiveness and usefulness. However, the standard supports the use of omni-directional antenna which radiates and receives signals in all directions that does not support spatial reuse and does not have high capacity and gain. Research studies show the benefits and advantages of using directional antennas instead of omni-directional antenna in wireless networks. Spatial reuse and high capacity are both very important especially today that the wireless networks are increasingly deployed due to the demand and needs of the users. But, as mentioned, IEEE 802.11 supports the utilisation of omni-directional antenna and not of directional antenna, thus to be able for directional antenna to be at its optimal use, the IEEE 802.11 protocols must be amended to be able to address problems associated with the use of directional antenna. Directional antenna or directivity of an antenna can be created using antenna elements that are combined to form an array. Smart antennas which are becoming popular today have achieved directivity due to the techniques employs with it. Introduction à à à à à à à à à à à Due to technological development in data and telecommunications during the past years, the Institute of Electrical and Electronics Engineers (IEEE) of the United States developed standards and guidelines to ensure orderly transfer of information between two or more data communication systems using different equipment with different needs. Standards and protocols are useful in ensuring that equipments such as computers, mobile phones, and communication devices from different manufacturers and providers have established compatibility and interoperability. à à à à à à à à à à à However, due to rapid technological development and introduction of newer technologies brought about by the increasing demands and needs of users, some standards are needed to be enhanced and improved. This is because as newer technologies are created, more and more data are needed to be transmitted requiring more capacity for the existing infrastructures. If standards and protocols are not improved, existing communication infrastructures will only have limited capacity causing serious problems such as interference and slow speed. People nowadays always demand for real-time communication of various data such as video, audio, pictures and multimedia. Background à à à à à à à à à à à One of the most innovative technologies today has been the wireless communication technology. Wireless technology encompasses the use of television and radio, mobile phones, wireless internet connection and computing system which are all very important for communication needs, eliminating the need for cables and wires and making possible the communication even in the remotest areas as along as there is available signal. WLANs increased the degree of mobility which are not possible using the conventional local area networks. In mobile phone communication alone, development has been tremendous that from analogue to GSM, now comes the 3G and 4G mobile systems. In the internet technology, connections have developed from ISDN to dial-up to DSL and now Wireless LAN which is very popular today. Communication between computers and mobile phones are also now possible with the GPRS technology. à à à à à à à à à à à These technologies are primarily intended for easy and real-time communication brought about by fast-paced lifestyle of people and also because of globalization. Mobile data and communications have become important for personal, professional, and business use. Because there are so many manufacturers and service providers from different locations, and also because of the popularity of these technologies, the IEEE developed the IEEE 802.11 which is a standard particularly intended for Wireless Local Area Networks. However, as WLAN experienced development and are improved, the IEEE 802.11 is also needed to be enhanced to be able for WLANs to be at their optimum performance. Additionally, because of the many uses and demands for WLAN, it has been increasing deployed causing interference between transmissions. Interference in data communications is a serious problem for it caused delay of transmission and alterations or distortion of signals that caused unreliable, unclear and error in messages received. The use of directional antenna is a well known method to reduce interference and to increase the range and capacity of wireless networks (Zhu et al, 2005). However, the IEEE 802.11 is not designed for the use of directional antennas. This project which is focused on the enhancement of the IEEE 802.11 using directional antennas and multiple receivers is important to be able to determine in-depth what improvement and advantages can directional antennas and multi-receivers can contribute to the current IEEE 802.11 Wireless Networks standard. Literature Review à à à à à à à à à à à This part of this proposal reviews literatures that describe the IEEE 802.11 WLAN standard in details to be able to determine the needs for the enhancement of the standard. The literature review also provides earlier research about the functions and advantages of directional antennas This review is a brief discussion providing an overview of the detailed review of literatures that will be provided in the chapters of the research study. 3.1. The IEEE 802.11 Wireless Network Standard à à à à à à à à à à à Aside from promoting interoperability, the IEEE 802.11 standard for wireless network was created to deliver services that were previously found only in wired networks but have been found out to be possible using wireless networks; to achieve high throughput; for highly reliable data delivery; and for continuous network connection (Ergen, 2002). As a standard, the IEEE 802.11 established the network architecture, components, type of equipments and set of services offered that must be complied with by wireless network administrators and providers. These are also known as the physical layer and that IEEE 802.11 WLAN standard provides a number of physical layer options in terms of data rates, modulation types and spreading spectrum techniques (Ergen, 2002). This means that the medium, the path that the signal transmitted and received via the WLAN, the range, location, frequency to be used and the type of antenna to be used are all determined by the IEEE 802.11 standard. IEEE 802.11 does not only specify the physical layer characteristics but also the link layer protocol for medium access in broadcast channels (Dham, 2003). The medium access control protocol is designed for the specified physical layer characteristics thus any changes made in the physical layer also requires significant alterations in the MAC protocol. à à à à à à à à à à à The MAC layer of the standard defines two different access modes: the Distributed Coordination Function (DCF) and the Point Coordination Function (PCF) (Xu Saadawi, 2003). DCF is a mechanism which is a Carrier Sense Multiple Access with Collision Avoidance. The standard allows the use of a basic access method or an optional handshake which is done by exchanging Request to Send (RTS) and Clear to Send (CTS) messages which are also the frame sent from the source to the destination and an acknowledgement from the destination that the frame was received correctly (Erger, 2005). These frames or control packets contain the proposed duration of data transmission while nodes or stations within the vicinity of communicating nodes overhear either of these control packets and suspend transmission for this proposed duration (Choudhury et al, 2002). à à à à à à à à à à à This process unable the nodes or devices to communicate directly with all other devices and for a wireless device to be able to transmit and receive at the same time thus the IEEE 802.11 MAC implements a network allocation vector (NAV) which is a value that indicates to a station the amount of time that remains before the medium becomes available (Erger, 2005).à With this standard, directional antenna is obviously not utilised because in using directional antennas, it is possible to carry out multiple transmissions in the same neighbourhood provided that the beamwidth of the directional transmissions is not very large (Choudhury et al, 2002). 3.2. The Directional Antenna à à à à à à à à à à à An antenna is one or more electrical conductors of a specific length that transmits radio waves generated by a transmitter or that collects radio waves at the receiver (Frenzel, 1994). It is a basic component of every wireless networks, thus it must be chosen carefully depending on how it will be used. WLAN commonly used omni-directional antenna which allows for transmission and reception of messages in any direction (Frenzel, 1994) which is commonly used in wireless internet connections and wireless telecommunications. However, because the transmitted signal is exposed in any direction, interference with other signal has been a problem. In search for the solution with the problem of interference, various research (Dham, 2003; Zhu et al, 2005; Choudhury et al, 2002) have been focused on the use of directional antenna in WLANs. à à à à à à à à à à à The primary advantage of directional antenna is that it eliminates interference from other signals being received from all directions except the direction of the desired signal (Frenzel, 1994). It was found out that the use of directional antenna for transmission gives the highest capacity, allows spectrum reuse, and provides range extension (Zhu et al, 2005). At the receiver, the antenna is pointed directly at the station to be received thus rejecting signals from transmitters in all other directions (Frenzel, 1994). à à à à à à à à à à à Another advantage of directional antenna over omni-directional is that there is greater efficiency of power transmission while when omni-directional antenna is used at the transmitter side the transmitted power goes off in all directions wasting a significant amount of power (Frenzel, 1994). It is argued that all messages should be sent in directional mode to take advantage of this gain (Zhu et al, 2005). Choudhury et al (2002) conducted a study and proposed a protocol that exploits the benefits of using directional antenna namely spatial reuse and higher transmission range. On the other hand, the use of directional antenna also poses some problems such as higher collision probability. That is, as space is segmented and the carrier is reused with directional antennas, the amount of MAC information required for conflict-free transmission increases (Zhu et al, 2005). Because the current IEEE 802.11 standard does not support spatial reuse, several problems may occur when directional antennas are used without changing the modifying the existing protocol. Collision occurs due to the deafness of the nodes as these nodes are immersed in only one direction. And because of this deafness, the transmitting nodes will send RTS packets repeatedly which is a waste of bandwidth (Zhu et al, 2005). The research study conducted by Zhu et al (2005) focused on solving the problems caused by the spatial reuse which is higher collision probability and proposed a protocol called sectorised 802.11 MAC protocol. These two studies along with the other studies serve as the framework of this research. To create an antenna with directivity and gain, two or more antenna elements are combined to form what is known as an array (Frenzel, 1994). Antenna array has the capability of spatial signal separation and could radiate frequency energy towards a desired receiver with narrow beamwidth and null towards an interfering terminal to reduce the negative impact of multi-path and co-channel interference (Zhou, 2006). Phased array antenna systems are an example of an array. Phased array antennas consist of an array of antenna elements connected by a feeder or adder network arranged so that their individual signals combine to provide maximum gain in one direction while minimising it in other directions (Dham, 2003). There is also what is called smart antenna which is consist of multiple antenna elements arranged in a special configuration and connected through complex weights (Zhou, 2006). Smart antenna Switched beam and adaptive array antenna are the two major categories of smart antenna. Switched beam is the simplest smart antenna with a number of fixed beams in predetermined directions at the antenna site (Zhou, 2006). Adaptive array on the other hand uses a complex signal processing algorithm to continuously detect multi-path and interference among desired signal (Zhou, 2006). The studies about the applications of smart antennas in wireless networks are also related and will be useful in the completion of this research study.à Zhou (2006) added that a smart antenna can be applied to all current major wireless protocols and industrial standards to achieve higher system capacity, larger network coverage and higher data rate thus smart antenna must be further investigated to determine what it can contribute to the enhancement of IEEE 802.11 with directional antennas. Aims and Objectives à à à à à à à à à à à In conducting any research, it is important that definite sets of objectives are present.à These objectives will serve as the researcherââ¬â¢s guide in conducting the data gathering, data analysis and conclusion formulation. The primary objective of the research is to provide a protocol designed for the utilisation of directional antennas in wireless local area networks. Such protocol is proposed to be used in the deployment of WLAN using directional antennas thus it includes some amendments on the original standards, architecture, and physical layer. However, this general aim is an umbrella objective that would dictate the general path that the research will take. Within this umbrella objective are the specific aims of the research that will allow the researcher to touch the important aspects of the topic. These specific aims are the following: To identify the problems associated with the current protocols to determine the necessary adjustments or enhancement that are needed to be done; To determine the characteristics of directional antennas and what it can contribute to improve the capabilities of the wireless local area networks; To evaluate the advantages of having multiple receivers in wireless local area networks; To investigate on the differences of the current protocol and the proposed protocol and determine the limitations of the latter; and To test the effectiveness of the proposed standard. Intellectual Challenge à à à à à à à à à à à The most intellectual challenge on this research is the proposal itself. The IEEE 802.11 is developed by reliable engineers and to propose an enhancement for this standard is a big challenge thus the research study should be based on reliable data. The proposed protocol should also be tested on using a prototype and accurate calculations to ensure that the outcome of the studies is viable. Research Program 6.1 Research Methodology The method of collecting data for the dissertation will be composed of two methodologies. The first methodology is review of related literature or secondary sources.à Reviewing earlier studies and other related literature would allow the researcher to become familiar with the already accepted theories and statements pertaining to the topic. The sources should be from technical books, journals, earlier theses and published articles technical organisations such as the IEEE. The second methodology would be surveys and personal interviews. Technical professionals like engineers and technicians from different communication network companies and Internet service providers (ISP) will be surveyed using questionnaires that include questions that will determine the problems encountered with WLAN particularly with the use of the antennas they currently utilise, the solutions they are implementing and the improvement they would like to suggest and impose with the current standards. It is important that the views of these people be collected since they are the ones who are immersed in the realities of the WLAN conditions. They will be able to provide insights that will help the researcher in evaluating the current IEEE standard. This study will be using the descriptive research method where the general part of the paper will be dedicated to the description of the subject in question. Descriptive research intends to present facts concerning the nature and status of a situation, as it exists at the time of the study (Creswell, 1994). It is also concerned with relationships and practices that exist, beliefs and processes that are ongoing, effects that are being felt, or trends that are developing. In addition, such approach tries to describe present conditions, events or systems based on the impressions or reactions of the respondents of the research (Creswell, 1994). The use of the descriptive method also suggests that the research will be focusing on obtaining qualitative data. Qualitative research is an umbrella that refers to various research traditions and strategies. The research will be carried out systematically. First, the researcher needs to review previous literature about the topic. This will allow the research the researcher to become familiar with what is already known about the topic. This will also allow the researcher to formulate the appropriate questionnaire that will be able to extract the most useful data. After the questionnaires have been completed, the researcher will have to tally the results and compare it with the findings of previous studies. If the finding of the research is the same as the findings of previous studies then the research can be supported by the findings of previous studies. On the other hand, if the findings of the research do not agree with past studies then the researcher must look back on previous studies to check if the findings of the studies are supported by other findings. This will ensure that the results of the research are not isolated and have been tested by other researches. 6.2 Schedule The Gantt chart below shows the schedule of activities involved in conducting the research study. Activity Date 1st Month 2nd Month 3rd Month 4th Month Data Gathering/Survey, Personal Interview à à à à Review of earlier studies and related literature/ Analysis of data collected à à à à Writing of the First Draft à à à à Development, Testing, Analysis, Evaluation and Documentation à à à à Revision of the study à à à à Formulation of the conclusion à à à à Completion of Writing à à à à Printing and binding of documents à à à à Submission à à à à à Deliverables à à à à à à à à à à à The research study will be organised as follows: A chapter describing the IEEE 802.11 A chapter describing the antenna used in WLAN and the problems using non-directional antennas A chapter describing the analysis of the problems A chapter that presents the data collected and the analyses of those data A chapter for the proposed solutions and the methods for testing the solutions A chapter that serves as documentations of the testing, calculations involved and evaluation of the proposed solutions Resources à à à à à à à à à à à As already mentioned, this research study is highly technical nature thus resources must be from reliable sources such as the IEEE itself that developed the standard that will be enhanced and the Association for Computing Machinery which is an organisation that publishes reliable sources about computing and related technology. ACM also has a digital library where various literatures can be accessed. The World Wide Web is also be used as a source where different latest articles and journals can be found. University and public libraries will also be used where books that discuss the basic concepts of the subject and topics involved can be found. The researcher will need the cooperation of technical professionals, technicians and engineers whose personal knowledge will be needed as they answer the survey questionnaires. The researcher will also need to collaborate with an ISP or a network company to test the proposed standard, determining its effectiveness as well as its shortcomings. References: Choudhury, R., Yang, X., Ramanathan, R., and Vaidya, N. (2002) Using Directional Antennas for Medium Access Control in Ad Hoc Networks, MOBICOMââ¬â¢02, ACM: Georgia, USA Creswell, J.W. (1994). Research design: Qualitative and quantitative approaches. Thousand Oaks, CA: Sage Dham, Vikram (2003) Link Establishment in Ad Hoc Networks Using Smart Antennas Thesis in Master of Science in Electrical Engineering, Virginia Polytechnic Institute and State University retrieved online on December 13, 2006 http://scholar.lib.vt.edu/theses/available/etd-05072003-180228/unrestricted/etd.pdf Erger, Mustafa (2002) IEEE 802.11 Tutorial, Department of Electrical Engineering and Computer Science, University of California Berkeley, Retrieved online on Dec. 13, 2006 à à à à à à à à à à à http://www.eecs.berkeley.edu/~ergen/docs/ieee.pdf Frenzel, Louis (1994) Communication Electronics 2nd edition, Glencoe Macmillan/McGraw-Hill: Singapore Xu, Shugong Saadawi, Tarek (2003) Does IEEE 802.11 MAC Protocol Work Well in Multi-hop Wireless Ad Hoc Networks? Dept. of Electrical Engineering, City University of New York retrieved online on December 13, 2006 à à à à à à à à à à à http://academic.csuohio.edu/yuc/mobile03/0415-xu.pdf à Zhu, Chenxi, Nadeem, Tamer and Agre, Jonathan (2005) Enhancing 802.11 Wireless Networks with Directional Antenna and Multiple Receivers, Fujitsu Laboratories of America, retrieved online on December 13, 2006 http://www.flacp.fujitsulabs.com/TM-PCR-TM-21.pdf Zhou, Hao (2006) The Improvements in Ad Hoc Routing and Network Performance with Directional Antennas, Department of Electrical and Communications Engineering, Helsinki University of Technology, Retrieved online on December 13, 2006 à à à à à à à à à à à http://lib.tkk.fi/Dipl/2006/urn007316.pdf
Subscribe to:
Posts (Atom)