基于链路角度最优化的无线Mesh骨干网络拓扑控制

On Topology Control Technology for Wireless Mesh Network based on Link Angle Optimization

关键词:  无线Mesh骨干网络  拓扑结构控制  定线通讯  信号干扰  通信链路角度

Key words:  wireless Mesh backbone network  topology control  line communication  signal interference  communication link angle

摘要:

[目的]为了改善基于Delaunay结构的无线Mesh骨干网络拓扑复杂度、通信链路角度以及全向通讯时信号干扰严重等不足,提出一种基于定向通信机制的节点链路角度最优化拓扑控制算法。[方法]该算法通过优化节点通信链路角度,使其相对最大,降低网络拓扑复杂度,并采用定向通讯机制降低通讯链路之间信号干扰。[结果]在满足约束条件下,该拓扑优化控制算法不但使节点链路之间角度控制在相对最大范围,减小了定向通讯时信道的干扰,同时也改善了无线Mesh网络(WMN)的丢包率、延迟、吞吐量等性能。[结论]仿真实验结果表明,该拓扑控制算法是有效的。

Abstract:

[Objective] In order to optimize the complexity, communication link and omnidirectional communication angle signal interference and serious deficiencies of the wireless Mesh backbone network topology based on Delaunay structure, this paper proposes a topology control algorithm based on directional communication mechanism for node link angle optimization.[Methods] First, this algorithm optimized the node communication link angle to make its angle relatively maximum and reduced the complexity of network topology. Secondly, it used the directional communication mechanism to reduce signal interference between the communication link.[Results] Under the constraint condition, the topology optimization control algorithm not only made the Angle of node links the largest, reduced the signal interference of directional communication, but also improved the WMN network packet loss rate, delay and throughput performance.[Conclusion] The simulation experiment results showed that topology control algorithm was effective.