Protecting Multicast Sessions in Wireless Mesh Networks

To support reliable multicast routing in wireless mesh networks, it is important to protect multicast sessions against link or node failures. The issue of protecting multicast sessions in wireless mesh networks is a new problem to the best of our knowledge. In this paper, we propose a resilient forwarding mesh approach for protecting a multicast session in wireless mesh networks. Utilizing the wireless broadcast advantage, a resilient forwarding mesh effectively establishes two node disjoint paths for each sourcedestination pair. This allows a multicast session to be immune from any single link or intermediate node failure. We introduce four heuristic algorithms to obtain approximate solutions that seek to minimize the number of required broadcast transmissions. We evaluate the performance of these heuristic algorithms against the optimal resilient forwarding mesh (ORFM) obtained by solving an integer linear programming (ILP) formulation of the problem. Experimental results demonstrat...

• Type: Conference
• Year: 2006
• Where: LCN
• Authors: Xin Zhao, Chun Tung Chou, Jun Guo, Sanjay Jha
• Keywords: LCN 2006, Multicast Session, Resilient Forwarding Mesh, Wireless Mesh Networks