A multicast routing algorithm in cognitive ad hoc networks

This paper investigates the global optimal multicast routing in the cognitive ad hoc networks, which is based on the directional antenna model. By analyzing directional antenna model and based on the end-to-end performance parameters, a multicast routing algorithm, which is to obtain the global optimal performance and refers to the energy utilization as metric, is proposed. Simulation results show that the routing algorithm put forward can obtain the maximum lifetime of a multicast tree effectively, and obtain the optimal end-to-end performance at the same time. This shows the effectiveness and feasibility of our algorithm.