A QoS multicast routing in wireless mesh networks

Wireless mesh network (WMN) has recently emerged as a promising technology for next-generation wireless network. In WMNs, many important applications, such as audio/video conferencing, require the support of multicast communication with quality-of-service (QoS) guarantee. In this paper, we investigate the issues of QoS multicast routing in wireless mesh networks. The paper studies TDMA-based timeslot allocation, and presents an effective heuristic algorithm for calculating bandwidth of a multicast tree. We also propose a novel DSR-based multicasting routing algorithm. Simulation results show that compared with MAODV, the proposed QoS routing algorithm can significantly improve the performance of QoS multicast routing in terms of success ratio and network cost.