Issues affecting Wireless local area network

Wireless local area network (LANs) plays a vital role in information and technology innovations. There are diverse ways in the current market including financial sectors, health care, corporation and better education. The wireless devices are mostly used in the New York Stock Exchange due to the report of trade. Employees in the company have the initiative of using wireless video connections in their conferences without going through tedious process of connecting the devices through wires. One of the major factors that have led to adverse impacts on the market based on the wireless communications is the aspects of the products being utilized by vendors (SUBBAREDDY, 2007 pg 34). Due to the institution of the 802.11 standard, there has been compliance that is expected to improve the issue. Various factors are expected to influence the long-term success of wireless LANs largely depending on the development of technology. These factors minimize the costs of installation making it to be fair to the financial levels of the customers (SIKORA, 2003 pg 45). The initial costs of installing wireless LAN infrastructure is termed as the greatest compared to the long-lasting benefits of wireless networks. This occurs because of the significant high rate of constantly mobile users.
Security versus coverage:

A Wireless local area network (Wireless LAN) is a network of the computer that allows users to connect without the implications of network cables. For example a Laptop or a PDA are machines that are advantageous as an individual can move to various points when equipped with a LAN card and have access to network without using the “plug-in” cable. The most utilized LAN is referred as the 802.11b network. The WLANs are widely utilized by many individuals; they are used globally due to their low cost and easy installation properties. This has led to an increase of the coverage services that deploy access to the strong points in specific areas. Security has developed as a major property in the performance of wireless networks.

Problems encountering the security versus coverage

In the depletion of security coverage system, there is more access point based on the security levels. This becomes a major problem in the networks performance. Wireless LANs requires to be utilized in institutions and offices that comprise of multiple individuals who share a common point of internet connection. The coverage of any wireless access point is expected to be 100 m indoors (SUBBAREDDY, 2007 pg 48). The wireless LAN has diverse names for example the “802.11” and “Wi-Fi”. There are various versions of the wireless LANs: 802.11b . This is effective because of its aptitude to transfer information at a speed of 11 Mbps in the 2.4 GHz radio band. The other edition is the 802.11a that is expected to transfer data at a relatively high speed of up to 54 Mbps in the 5 GHz band. Wireless LANs are a triumphant and popular technology and is utilized by many individuals in their laptops. Various measures are implicated to minimize the security of the wireless connection; this is evident through the minimization of eavesdropping and enhancement of authentication. This will aid in the maintenance of security in wireless connections and it will make the network more apparent and popular (STAVROULAKIS 2001 pg 72).

Performance for multiple users

Multiple users are served with a single access point when it comes to wireless connection. This is more of a situation experienced in laboratories whereby the transmission performance is perceived through the individual users affecting access (KUMAR, 2008 pg 65). There are diverse factors that affect Wireless Networking Performance and they are dependent on several areas within the network itself due to technological aspects of the utilized devices. The local environment signals ways in which the fundaments behind wireless transmission are implicated. Majority of the factors cannot be avoided as measures taken minimize the negative aspects and the performance of the networks.

Factors affecting the reception of signal quality

Physical obstructions

When the wireless signals have trouble penetrating solid objects, it can be because of obstructions between the transmitter and the receiver, chances are that the strength of the signal is also affected and a clear line of the site is made possible. This is concluded that the higher the rate of frequency the better the penetration qualities of the waves.

Distance between Devices.

The distance between the networked devices trying to link up with each other weakens with long distances (SIKORA, 2003 pg 67). This is because wireless signals are propagated to cover wide ranges as they move further and this increases the speed rate. The signal strength declines in relation to the distance between the inverse of the two devices.

Network usage and load

Majority of the clients utilize the bandwidth network that is less when shared between them. The necessities of the bandwidth increase on each network and one may wish to indulge their equipment so that they can cater for the high speed of performance and its reliability.

Poorly Deployed Antennas

These antennas are limited to the spread of transmitted signals due to various orientations. They should be installed in an accurate method to ensure that the transmission signals are situated on the correct plane. The sector antennas are placed in a different position on the planes. These antennas usually succeed due to the Omni-Directional antennas that transmit signal well in all directions.

Local environment characteristics

The most proficient factor that affects indoor network, wall constructions properties are those involved in the inhabitance of the wireless signals (SUBBAREDDY, DHEERAJ REDDY, 2007 pg 71). The wire meshing done between walls usually hinders the transmission of signals because the materials utilized have diverse levels of effects. It is evident that concrete used to make walls alters the performance of indoor networking. The thicker the walls the minimal success observed in the penetration of signals while maintaining high levels of strength.
Public access WLANs:

The potential market of Public Access WLANs (PAWs)

When WLANs are deployed and operating in the public domain, they will have to work alongside other existing wireless networks. There are potential market of Public Access WLANs (PAWs) and opportunities for the suppliers of infrastructure, software and services (KUMAR, 2008 pg 82). The infrastructure of the wireless IP network requires planning with the WLAN configuration, sizing and transport choices. In both the wired and wireless IP, there are separate voices and data for the WLANS as there are often effective in deployments that ensure effective network bandwidth and troubleshooting. According to the WLANs, they provide mechanism for the installation of networks in their initial domains. They are effective for IP networks whereby the recommendation of separate WLANs is divided into two specific layers. The configuration of separate WLANs for guest and other for data traffic ensures that there is appropriate provision of diverse classes of traffic and they are expected to resolve aspects such as security and network dimensions.

The unlicensed deployment and infrastructure configuration provides distinct features that cannot be excluded from data voice within the aid of the clients. The traffic of the UMA Network Controller (UNC) is installed at layer 3 and inbound over the Internet, so it is implausible that they QoS have been conserved (SUBBAREDDY, DHEERAJ REDDY, 2007 pg 89). The recommended method of providing wireless Qos is through the assumption of the traffic from the downstream UNC to the dual-mode UMA client voice and the classification of such edge of the network. One major method of implicating these strategies is to utilize the routing that does not indicate the presence of any IP Addressing. The Network Administrator can supply the T-Mobile UNC IP addresses.

The disruptive effect of PAWs to other wireless networks and services offered, and methods that can be used to minimize the effect

The Wireless LAN technology has increased to the level of making campus deployment feasible. Through the utilization of the wireless LAN, institutions and organizations will have the opportunity of connecting the main network and have access to the network services without relying on a single designated terminal (CHATZIGIANNAKIS, MYLONAS, and NIKOLETSEAS, 2007 pg 90). The main requirement is the 802.11b compliant wireless network card essential for the laptop or PDA. Clients have the capability of utilizing similar services they would have acquired if they used the wired networks. The EITS wireless deployment is referred as the PAWS (Personal Access Wireless/Walkup System). It is the most insecure network that is isolated from main campus networks. The access of the PAWS network develops through the access point 802.11b compliant. This access point has a radio receiver and an Ethernet jack and they are installed on the walls to provide a wide radius of internet access. The uses must be within various distances of the access points to connect to the LAN network through the Ethernet elements of a certain region (SUBBAREDDY, 2007 pg 98). Users prefer using their UGA MyID user name and password, checked against a central UGA authentication server.

List of references

SUBBAREDDY, D. R. (2007). Correct, efficient, and realistic wireless network simulations. Thesis (Ph. D.)–Electrical and Computer Engineering, Georgia Institute of Technology, 2007. http://smartech.gatech.edu/handle/1853/14558.

KUMAR, U. (2008). Inference of user behavior and investigation of privacy issues in WLAN trace analysis. [Gainesville, Fla.], University of Florida. http://purl.fcla.edu/fcla/etd/UFE0022541.

SUBBAREDDY, DHEERAJ REDDY. (2007). Correct, Efficient, and Realistic Wireless Network Simulations. Georgia Institute of Technology. http://hdl.handle.net/1853/14558.

CHATZIGIANNAKIS, I., MYLONAS, G., & NIKOLETSEAS, S. (2007). A Model for Obstacles to be used in Simulations of Wireless Sensor Networks and its Application in studying Routing Protocol Performance. Simulation. 83, 587-608.

SIKORA, A. (2003). Wireless personal and local area networks. Chichester, West Sussex, England, Wiley.

STAVROULAKIS, P. (2001). Wireless Local Loops Theory and Applications. Wiley. http://www.myilibrary.com?id=55523&ref=toc.

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