多信道无线网状网跨层优化研究  

Research on cross-layer optimization for multi-channel wireless mesh networks

作　　者：孙素云[1] 唐林燕[1] 

机构地区：[1]广东轻工职业技术学院计算机系,广州510300

出　　处：《计算机工程与应用》2009年第23期85-87,126,共4页Computer Engineering and Applications

基　　金：广东省自然科学基金No.8151030007000002;广东轻工职业技术学院自然科学基金资助项目(No.KY200807)~~

摘　　要：针对多网卡多信道无线Mesh网络容量问题,基于无线信道干扰模型,在给定各节点物理层发射功率的条件下,联合考虑无线Mesh网络传输层的流速控制、网络层的路由算法和MAC层的信道分配等问题,通过采用二次路由计算策略,提出了一个跨层联合优化算法,仿真结果表示,提出的算法能提高网络吞吐量。Aiming at the capacity problem in multi-network interface card,multi-channel wireless mesh network,based on wireless channel interfere model and wireless nodes＇ transmission power to be given in physical layer,a cross-layer union optimization algorithm is proposed by jointing rate control in transport layer,routing algorithm in network layer and channel assignment in MAC layer,and using the strategy of executing routing computation twice in the paper.Simulation results show that the network throughput can be improved significantly by the proposed algorithms.

关 键 词：无线网状网 跨层设计 信道分配 调度 无线信道 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]