Wireless Bandwidth estimation technique (WBET) based dynamic channel allocation for IEEE802.11e standard

To ensure the access point (AP) based quality of service (QoS) especially for multimedia communications, it is important to know the Bandwidth performance of a transmission media. And the limitation of existing fixed channel allocation caused the degradation on overall throughput of the wireless local area network (WLAN). This paper proposes a new bandwidth estimation technique and dynamic channel allocation based on the bandwidth requirement and quality of service (QoS) of IEEE 802.11e network. According to this paper's proposal, the distributed system (DS) of WLAN distributes the available frequency band to access points (APs) or the access points will get required channel bandwidth, in such a manner that the maximum possible bandwidth efficiency will be achieved. The numerical results of the proposed technique are shown in this paper and compared with the existing fixed channel allocation.