A Distributed Scheduling Scheme Providing QoS in Multimedia Ad Hoc Wireless Networks

Providing Quality of Service(QoS) in distributed networks, such as multimedia ad hoc wireless network, also requires well defined scheduling schemes. However, due to the distributed nature of ad hoc networks, nodes may not be able to determine the next packet to transmit as in the centralized networks. Thus, it is a non-trivial issue to provide bounded delay guarantee, with fair share of resources. In this paper, we implement a scheduling scheme named delay guaranteed fair queueing (DGFQ) in a multimedia ad hoc wireless network with distributed manner. According to the performance evaluation results, both average and maximum delay could be controlled with varying service differentiation coefficient. In summary our new scheme can manages the delay performance of multimedia traffic in the distributed network environment.