| Abstract: | With the utilization of concurrent transmission strategy, a throughput-enhanced scheduling scheme is devised for multicast
service in wireless multi-hop mesh networks. Since the performance of a multicast mechanism is constrained in a wireless setting
due to the interference among local wireless transmissions, the interference relationships are first characterized by introducing
a graph transformation method. Based on the graph transformation, the multicast scheduling problem is converted to the graph
coloring problem, and then a capacity greedy algorithm is designed to provide concurrent transmission scheduling so that the
demanded multicast transmission rate can be achieved. Moreover, the necessary and sufficient conditions of multicast schedulable
feasibility are derived. Through corresponding simulations, it is shown that the proposed strategy can enhance the throughput
of wireless multi-hop multicast systems significantly. |
