WiMAX Mesh网络路由与调度算法研究

Research on Routing and Schedule Algorithm in WiMAX Mesh Network

WiMAX Mesh网络引入多跳的方式实现远距离通信,取得覆盖范围和吞吐量的性能优化。在集中式Mesh网络中,路由与调度算法对网络性能有重要影响。针对Mesh模式提出一个新的方案,在基于冲突感知与负载平衡路由的基础上,利用多信道单收发机模式,采用联合调度和信道分配算法提高系统性能。仿真结果表明,该算法在调度长度和归一化吞吐量方面比单信道系统有较大的提高。

WiMAX Mesh may accomplish long-distance transmission with both high throughput capacity and large coverage range through multi-hop mode. The routing and schedule algorithm are two key factors that influence the performance of the centralized Mesh network. To obtain the potential performance of the network, this paper proposes a novel combined centralized schedule and channel assignment algorithm for multi-channel single-transceiver Mesh network based on interference aware and load balance routing. Simulation results show that the proposed scheme can improve the system performance in aspects of schedule length and the unitary throughput in comparison with single channel system.