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LAN Construction, 2004.
This paper discusses the main hardware and software required in the construction of an efficient LAN for a small company.
2,560 words (approx. 10.2 pages), 6 sources, MLA, AU$ 112.95
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Abstract
This paper discusses that, even in small companies, there is a need for computers to communicate with each other, thus extending the power of standalone PCs; a Local Area Network (LAN) facilitates this. The author points out that some of the advantages of a LAN are communication, management control, cost effectiveness, downsizing, and new application software. The paper stresses that, after the installation of all the hardware and software, the LAN must be tested carefully to ensure that it meets the entire network?s needs; the constructed LAN should be managed by a trained professional to ensure that it gives the maximum efficiency to its users.
From the Paper
"The Local Area Network constructed for the company will mostly constitute of microcomputers that is, most nodes on the LAN will be microcomputers. The two servers in the LAN would be the Mail Server and the File Server. A server is a computer that is dedicated to providing one or more services to other nodes. It controls the shared resources and handles all the data requests. In our LAN, the servers will have a larger hard disk and plenty of RAM. In order to maintain good performance, the RAM is used to buffer disks requests. The File Server on our LAN will provide file and disk access services."
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Can Wireless LANs Replace Wired LANs?, 2002.
A discussion as to whether the new technology of wireless LANs will fully replace wired LANs in the future.
2,872 words (approx. 11.5 pages), 9 sources, MLA, AU$ 123.95
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Abstract
This paper highlights the advantages of Wireless Local Area Networks (WLAN) over wired ones. It explains the option of extending this convenience to our working lives, for example being able to access the Internet from any location. The paper examines what the technology of Wireless LANs is about and describes its benefits and applications. It looks at the constraints holding the technology back, such as security concerns and explores the solutions. Finally it discusses the important question of whether Wireless LANs can ever fully replace Wired LANs or is it a new piece of technology that will ultimately fail to deliver? The writer concludes by arguing that Wireless LANs are likely to grow considerably in the future but probably will not replace Wired LANs altogether.
From the Paper
"The convenience of wireless communication is so overwhelmingly obvious that given a choice, and provided there are no price constraints, almost everyone would prefer wireless instead of wired communication. This is reflected in the widespread use of devices such as remote control for TV, cellular telephones, pagers, and remote garage openers. The flexibility, mobility, and convenience that such ?wire-less? devices bring to our lives are simply magical".
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CiscoWorks Wireless LAN Solution Engine (WLSE) 2.5, 2004.
This paper evaluates CiscoWorks Wireless LAN Solution Engine (WLSE) Release 2.5, a LAN solution product of Cisco Systems that utilizes wireless technology.
770 words (approx. 3.1 pages), 7 sources, MLA, AU$ 39.95
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Abstract
This paper explains that the WLSE, CiscoWorks WLSE Release 2.5 is a wireless area network solution that, aside from the fundamental features of CiscoWorks WLSE, WLSE Release 2.5 has additional features for radio management support, which permits users to detect unauthorized or rogue access points and to deploy new access points with the help of the coverage maps the system creates. The author points out that there are several problems, e.g., valid dates entered in the advanced options for Device Discovery produce an error message. The paper relates that there are alternative products, such as HP?s ProCurve Networking Secure Access 700wl Series, which guarantee controlled data security and protections.
Table of Contents
What is CiscoWorks Wireless LAN Solution Engine (WLSE) 2.5?
Features and Benefits
Supported Devices
Limitations/Issues
Possible Alternative Products
From the Paper
"Entrasys Wireless is another possible alternative to CiscoWorks WLSE 2.5. It is an indoor and outdoor solution to stay connected in a network. Entrasys Wireless utilizes 802.11a/b/g multimode radio cards for a highly secured transmission of radio frequencies meant for an experience of being connected without cables and wires."
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Reasons For a Slow LAN, 2003.
In this essay the writer discusses the slowing down of communication between workstations and other computers on the LAN.
690 words (approx. 2.8 pages), 2 sources, AU$ 35.95
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Abstract
The following essay attempts to prove that networking hardware are incompatible and work at different speeds. The writer contends that these factors can also slow down the overall speed of the LAN. Random Access Memory hardware systems and Central Processing Unit hardware systems are made reference to.
From the paper:
?On certain LAN configurations, such as the Bus and the Ring, an increase in the number of nodes, slows down the LAN. This is because Bus and Ring are designed in such a way that a data packet meant for a particular workstation, gets exclusive rights to the entire LAN cable. In other words, while a packet moves from its source to destination, no other packet is allowed on the network cable.?
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Wireless LAN's in Business, 2005.
Shows how Nortel Networks and General Motors Corporation increased productivity by incorporating wireless LANs in their offices.
870 words (approx. 3.5 pages), 2 sources, APA, AU$ 44.95
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Abstract
General Motors Corporation distributed wireless LANs to all 25 of its North American assembly plants, thus decreasing their assembly line downtime and giving workers more mobility. Nortel Networks removed business boundaries by installing a wireless LAN system in their Beijing and Sydney offices, allowing the company to cut building cabling costs by 60% and drawing a rapid return on investment in less than a year. This paper examines how the introduction of a wireless LAN to General Motors and Nortel Networks gave the two companies a big advantage in their industry by allowing them to save money and have a rapid return on their investment in little or no time.
From the Paper
"The need for flexible work arrangements and increased need for collaboration among project teams are a couple of factors among a few that suggested the need to set up WLAN technology. One of the highlights of the WLAN implementation is seamless roaming across points which is very important to the effectiveness of the network. This seamless roaming offers uninterrupted and secure connectivity so that if one moves about in an area there connection will not be lost causing them to restart there session."
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IEEE 802.11 Wireless LANs, 2005.
Examines different aspects of IEEE 802.11 Wireless LANs by using analytical methods and simulation.
13,943 words (approx. 55.8 pages), 14 sources, MLA, AU$ 360.95
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Abstract
This paper analyzes the efficiency of the access algorithms in IEEE 802.11 infrastructure wireless LANs. The first part of the paper provides an overview of the access algorithms that are in used in IEEE 802.11 implementations. A mathematical model of the carrier sense protocols is introduced and analyzed through the second part. The main part of the paper is devoted to simulation of IEEE 802.11 infrastructure networks. For this purpose a discrete event simulator has been designed and implemented. Finally the results are presented and discussed.
Table of Contents
IEEE 802.11 Wireless LANS
IEEE 802.11 Access Algorithms
Mathematical Analysis of the Carrier Sense Protocols
Non-Slotted Non-Persistent CSMA
Slotted Non-Persistent CSMA
Simulation of IEEE 802.11 Infrastructure WLANS
Traffic Modeling
The Simulation Model
Simulation Results
Summary
References
The Simulator Source Codes
From the Paper
"Nowadays, wireless LANs, also known as WLANs, are used widely as an alternative for the wired LANs. In Comparison with the traditional wired LANs, WLANs provide more flexibility and higher ROI (Return On Investment) for both providers and customers. Also in some cases (such as disaster discovery), it is impossible to set up a wired LAN. Since setting up a WLAN does not need a great starting investment (especially in the case of ad hoc operation), it is considered to be an ideal choice for any temporary network connectivity requirement in local scales. For these reasons, the WLAN's productivity has increased rapidly during recent years."
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"Guns and Rain: Guerillas and Spirit Mediums in Zimbabwe" by David Lan, 2002.
A review of Lan's book on Zimbabwe during the anti-Colonial struggle for independence (1966-1980).
1,800 words (approx. 7.2 pages), 1 source, AU$ 91.95
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Abstract
Review of Lan's book on Zimbabwe during the anti-Colonial struggle for independence (1966-1980). Focuses on the way in which African religion (Spirit Mediums) of the Shon people joined forces with the military. Transformation of guns/death to life-giving forces and independence through the Mediums. History of Zimbabwe. Government administration of the country.
From the Paper
"David Lan?s Guns and Rain: Guerillas and Spirit Mediums in Zimbabwe examines both the larger culture of this African nation and the particular ways certain cultural vectors came together during the anti-colonial struggle for independence that extended from 1966 to 1980 during which thousands of the country?s peasants (who were living traditional lives in many ways set fundamentally apart from the formal political life and struggles of the urban population) joined with the pro-independence guerillas to provide both practical help and psychological support. This support was spearheaded throughout the country by hundreds of spirit mediums, the religious leaders of the Shona people.
It was through the support of these mediums, Lan makes clear, that the scale of the war expanded into a wide-scale act of..."
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Wireless LANs., 2002.
A look at the technical aspects of wireless LANs.
3,900 words (approx. 15.6 pages), 5 sources, AU$ 206.95
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Abstract
This sixteen-page graduate paper gives the technical aspects of wireless LANs, assesses their impact on the market (actual or likely) and reports on their future applications.
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Wireless LANs, 2002.
A look at wireless lans.
650 words (approx. 2.6 pages), 4 sources, AU$ 38.95
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Abstract
This paper is on Wireless LANS and the inventions associated with it. Including Bluetooth and IRDA.
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Local Area Network (LAN), 2001.
This business paper is an evaluation of the potential usefulness of a basic local area network (LAN) in a business.
2,700 words (approx. 10.8 pages), 8 sources, MLA, AU$ 116.95
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Abstract
This paper describes the design of a basic local area network that would be useful in a wide variety of businesses and possibly educational settings for a cost of approximately $200,000. This system is designed both to meet current needs of a business that wishes to run efficiently and to be able to interact with other businesses also running at acceptably high efficiency levels for a company with high-tech aspirations. In order to work, the system needs to show flexibility in order to expand with growing business needs and volume for at least several years before any new substantial investment is made in hardware or new software. In order to demonstrate the feasibility, the author gives us an overview, definition and background about a basic local area network. The feasibility of the network's success is analysed, and its potential for successful integration into an actual business is evaluated.
From the Paper
"However, at the same time, no network designer should make the mistake of providing too few of a number of peripherals like printers because doing so limits the efficiency of workers and tends to produce a great deal of frustration in the office. Workers sitting around waiting to print out a needed job are not only workers being paid not to work, but they are also workers being paid to be frustrated, which is most certainly not the ideal situation in any way. Perhaps a good standard rule for the network designer would be to estimate the number of peripherals needed and then for every 20-25 people who will be using the network to add one peripheral. The added cost in initial equipment expenditure will be paid back by the fact that workers will be able to be more efficient. This will also allow for workers to continue to be productive when a device breaks down (as of course will happen) because there will be other machines within the network already linked to provide those needed services (Derfler 68)."
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Wireless LANS, 2002.
Study of the application of wireless local area networked computer systems.
2,380 words (approx. 9.5 pages), 6 sources, MLA, AU$ 104.95
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Abstract
This paper examines the telecommunications technology of Wireless LANS. It describes the technology of cellular, infrared, and spread spectrum radio services of wireless local area networks. The paper explores this highly technical market, and questions if wireless LANS will replace traditional hard-wired LANS. The author illustrates that a smooth integration into wireless LANS will increase its use in the already mobile work environment.
From the Paper
"We are witnessing a revolution in telecommunication networks. In this information age the need for efficient data interchange has become all the more pronounced. Sharing of data has become an indispensable aspect in all business undertakings. Today with all the aspects of business being automated interconnectivity between the various resources has become a prerequisite for successfully tapping the benefits of automation. The local area network is a communication system that allows the sharing of resources and data between different communication gadgets within a specific geographical area. Traditionally local area networks have used the wired communication system for interconnecting the different resources. Wireless LANs offer a totally new level of service to the users removing the system tethers and increasing their freedom and mobility. Today we find totally new approaches and applications for Wireless LANs as seen in cellular, infrared, and spread spectrum radio services. Wireless LANs are fast becoming an integral part of our network world and the mobile workforce has already become a reality. Let us analyze the different aspect of this technology in a little detail."
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Internet and LANs, 2005.
A discussion of the Internet and how it works.
852 words (approx. 3.4 pages), 5 sources, MLA, AU$ 44.95
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Abstract
This paper describes the physical aspects of the Internet and explains how it works. The paper begins with a look at routers and LANs and how they work. The paper also demonstrates how LANs work by giving an example of how to implement and connect a LAN to the Internet.
From the Paper
"I love the Internet. For example, I can?t live without my daily emails and I am a big fan of music downloads and bargain shopping. Those individuals not in tune with what?s currently happening all around us in regard to email, websites like KaZaA and eBay, or even the phenomena of file swapping for that matter may be a bit out of touch. The future of information technology is here right now on can be found on the Internet. The bottom line is that the Internet is really comprised of physical hardware and software known as routers and lots of Local Area Networks (LANs)."
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From LAN to Internet, 2002.
Examines the transition from a Local Systems Application to an Internet Systems Application, using the example of the Royal Borough of Notlington Library Service computer system .
1,650 words (approx. 6.6 pages), 1 source, AU$ 89.95
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Abstract
In December of 2001, the Royal Borough of Notlington Library Service decided to implement an application that would best allow for a more efficient form of catalogue access on their networked computers. This system would improve functionality by allowing networked PCs to access a database that would define and describe the available resources within the Notlington library system, including select publication information and whether a specific source is available in the library. There is currently a question of moving this system to an online forum that would be outside of the local library network. This paper assesses the initial application and recommends transitional techniques that would allow the application to be better used in an accessible Internet format.
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Wireless Local Area Network (WLAN), 2004.
This paper discusses the Wireless Local Area Network (WLAN), which
is a computer communication system that transmits and receives data using modulated electro-magnetic waves as a substitute for wired cables.
1,620 words (approx. 6.5 pages), 4 sources, MLA, AU$ 75.95
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Abstract
This paper explains that the Wireless Local Area Network (WLAN) was developed to meet the needs of mobile computer users who desire to be connected irrespective of their positions, such as in small mobile and home offices. The author points out that the wide acceptability of Wireless LAN, due to its benefits of flexibility, scalability, and mobility, necessitates the standardization of the devices, thus ensuring compatibility and reliability among all the manufacturers and users. The paper relates that the range and connectivity of the Wireless Network depends on the strength of RF signal, which is adversely affected by complicated factors like building structure, room layout, wall construction, and RF-emitting devices like microwaves.
From the Paper
"It is established as per the peer-to-peer architecture. The Distribution System enables two or more BSSs to be interconnected with the help of the access points, which increases the network coverage. The access points bridges the gap between the BSS and DS and data moves through them. The Extended Services Set (ESS) is created with the creation of large and complex networks using BSS and DS. The entire network under the ESS operates as an independent basic service set to the Logical Link Control Layer. The benefits of the IEEE 802.11 extended with the use of a portal to integrate logically between the wired LAN and IEEE 802.11 Wireless LAN. The portal also is used as a gateway to access to the Distribution System. The Portal is used to bridge the gap between Wired LANs with Wireless LANs. The standard IEEE 802.11 has specified the services that the distribution system should support, which in consonance with the BSS and DS, may be station services and distribution system services."
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War and Spirits in Zimbabwe, 2002.
Examines David Lan's book "Guns and Rain: Guerrillas and Spirit Mediums in Zimbabwe".
1,921 words (approx. 7.7 pages), 1 source, MLA, AU$ 88.95
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Abstract
This paper analyzes David Lan?s "Guns and Rain: Guerrillas and Spirit Mediums in Zimbabwe" which examines both the larger culture of this African nation and the particular ways certain cultural vectors came together during the anti-colonial struggle for independence that extended from 1966 to 1980. The paper shows that during the struggle, thousands of the country?s peasants (who were living traditional lives in many ways set fundamentally apart from the formal political life and struggles of the urban population) joined with the pro-independence guerrillas to provide both practical help and psychological support. This support was spearheaded throughout the country by hundreds of spirit mediums, the religious leaders of the Shona people. The paper also presents a history of Zimbabwe from its earliest origins in 800 A.D. to the present day.
From the Paper
"Much of the population in Zimbabwe is formally educated, unlike the populations in traditional pre-1960s ethnographies. Primary education in Zimbabwe is both free and compulsory, which shapes people?s ability and inclination to interact with non-traditional cultural and social institutions and practices. Higher educational institutions include a number of teachers' colleges and several agricultural and technical schools as well as the University of Zimbabwe at Harare. The fact that so much of the population is educated does not ? as Lan makes clear ? mean that they have turned away from the traditional religion but rather that they have learned to use it (and perhaps to believe in it) in more sophisticated and more complex ways."
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Local Area Network Technologies, 2004.
Brief overview of two of the important wireless LAN technologies.
1,895 words (approx. 7.6 pages), 5 sources, MLA, AU$ 87.95
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Abstract
This paper provides a brief look at "IEEE 802.11" and "Bluetooth", two of the important wireless LAN technologies. A comparison of the two technologies follows a description and explanation of their physical layers, medium transmission characteristics, primary tasks, protocols, and spectrum techniques.
From the Paper
"The IEEE 802.11 (First adapted in 1997) is primarily a standard developed to provide time bound and asynchronous wireless services. The MAC layer is meant to handle different physical layers with distinct medium and transmission characteristics. The standard uses 2.4 GHz ISM band and a minimum data transfer rate of 1 Mbits /s. IEEE 802.11 specifies the physical and the medium access layer standards in particular to the wireless LAN?s. IEEE 802.11 has seamless integration with other standards for wired networks. The Data link layer and the Logical Link layer control other aspects pertaining to different forms of the media. The MAC layer is concerned with three main tasks namely medium access, data fragmentation and encryption while the Physical layer takes care of the modulation, encoding and decoding of the signals. Let us study these two layers in a little detail."
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