Ethernet has been the most dominating network technology since its debut; but in recent times the demand of wireless communication has grown rapidly due to its mobility and portability factors. The IEEE 802.11 Wireless Local Area Network (WLAN) standards, has become eminent technology bridge to the classic Ethernet. The Infrastructure mode of 802.11 uses an Access Point (AP) to coordinate all communications between the wired network and mobile stations. With the emerging real-time applications like VoIP and Video conferencing the access to the Internet through WiFi has become even more interesting and indispensible. Now days in many private as well as public organizations are deploying 802.11 standards to the existing networks availing internet access to its mobile users. In an organization, different users access an AP with different traffic types and different bandwidth requirements. As a matter of fact the categories of mobile users always vary in such networks having more priorities over others on the basis of their bandwidth requirement and purpose of the internet access. Therefore some dynamic and intelligent bandwidth management scheme may be incorporated alongside the current 802.11 so that users of higher priority can be serviced with adequate bandwidth by squeezing some bandwidth from lower priority users as and when needed. In this paper we proposed a dynamic technique for bandwidth management in 802.11wireless LAN. The proposed method has been implemented by means of simulations using OPNET Network Simulator.

Bandwidth, 802.11 WLAN, Quality of Service (QoS), Load, Delay, Retransmission Attempts, Traffic

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