网络拓扑结构动态变化、带宽和能源受限等特点使得AdHoc组播路由问题成为当前研究的热点问题.现有的AdHoc网组播协议多为确定性路由,对AdHoc网网络环境的变化适应性较差.在深入研究蚁群算法的基础上,对其进行了改进,将其应用在AdHoc网组播路由的建立和维护过程中,提出了一种不确定性的组播路由算法,称为基于蚁群算法的AdHoc组播路由算法.NS-2仿真结果证明,蚁群算法在AdHoc组播路由中的应用使组播路由算法具有较高的稳定性和良好的传输有效性,受网络环境的影响较小.
Due to dynamic change of network, limitation of bandwidth and energy, the problem of Ad Hoc multicast routing becomes the current hot research topic. Most of existent Ad Hoc multicast routing protocols use determinate routing, which have poor flexibility and adaptability to changes of Ad Hoc network environment. In this paper, after deep study the basic ant colony algorithm, it has been improved in view of questions that premature partialrestrains and convergence. The improved ant colony algorithm is applied in the establishment and maintenance of network multicast routing process. A new uncertainty multicast routing algorithm is proposed in this paper, which called as Ant colony-based multicast routing algorithm for Ad Hoc networks. NS-2 Simulation results show that the application ant colony algorithm in Ad Hoc multicast routing makes multicast routing algorithm have high efficiency, good stability and better adaptability to Ad Hoc network environment.