An Efficient Multicast Routing in IEEE 802.15.5 Networks

The IEEE 802.15.5 standard for WPAN mesh adds mesh links to a tree structure for efficient communications for unicast routing. However, for multicasting, the basic tree routing scheme which does not exploit mesh links is adopted, which leads to inefficient multicasting. In this paper, we propose 'MTM (Multicast Tree with Mesh)' routing scheme which leverages mesh links for multicast routing. The proposed scheme shows better performance than the basic tree routing of IEEE 802.15.5 standard in terms of the number of participating nodes in multicast trees, control message overhead, and the number of data transmissions.