Fair Queue Optimization-based Resource Allocation Algorithm for Video Traffic over Wireless Multimedia System

the main design challenge of suitable medium access control (MAC) protocol for wireless multimedia system is to maximize the utilization of the limited wireless resources while guaranteeing the various QoS requirements for all traffic classes especially for the stringent real-time constraint of real time variable bit rate (rt-VBR) video service. In this paper a novel resource allocation algorithm for video traffic is proposed. The proposed allocation algorithm aims to optimize queue fairing for video packets by minimizing the queue length difference among user’s buffers. At the same time it adaptively controls the allocated resources (bandwidth) for video traffic around the corresponding average bit rate. A minimized control overhead of only two bits is needed to increase the utilization efficiency. Simulation results show that the proposed algorithm achieves very high utilization and allocation efficiency while enhances QoS offered for video traffic and provides nearly fair queuing for video packets. Its efficiency is also investigated under traffic integration condition with voice and data traffic. Under traffic integration condition the data traffic increases the utilization while a good QoS is achieved for all traffic classes.