Energy efficient multicast routing heuristic algorithms in Ad hoc cognitive radio networks
基于能量优化的Ad hoc认知无线电网络组播路由启发式算法研究*

This paper proposed two heuristic algorithms.One was SPTA which was based on shortest path tree, and the other one was EFHA which used energy functions. Each algorithm constructed an energy efficient multicast tree considering the characteristics of the cognitive radio networks. The results of examples show that the multicast tree obtained by EFHA algorithm has lower energy consumption and time complexity compared with that obtained by SPTA algorithm.