《计算机应用研究》|Application Research of Computers

基于模糊控制的认知无线电路由选择策略

Cognitive radio routing selection strategy based on fuzzy control

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作者 韩庆文,尚淑敏,朱颖合
机构 1.重庆大学 通信工程学院,重庆 400044;2.杭州电子科技大学 自动化学院,杭州 310018
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文章编号 1001-3695(2011)01-0262-03
DOI 10.3969/j.issn.1001-3695.2011.01.074
摘要 一般无线网络的路由选择算法由于固定的信道分配不适合直接应用于认知无线电网络,需要针对认知无线电网络特有的信道动态性特点提出合适的路由选择策略。结合按需路由的基本流程,引入模糊控制技术,在充分考虑信道利用率和信道感知度这两种度量标准的影响下,提出一个可行的具有较小路由选择代价和最短路径双重优点的路由选择策略。仿真结果表明,基于模糊控制的路由选择策略较一般无线网络的按需路由协议具有更好的数据包投递率性能和吞吐量性能。
关键词 认知无线电;模糊控制;路由选择代价;最短路径
基金项目 国家自然科学基金资助项目(NSTC60872038);重庆市自然科学基金资助项目(CSTC2009BB2205)
本文URL http://www.arocmag.com/article/1001-3695(2011)01-0262-03.html
英文标题 Cognitive radio routing selection strategy based on fuzzy control
作者英文名 HAN Qing-wen, SHANG Shu-min, ZHU Ying-he
机构英文名 1. College of Communication Engineering, Chongqing University, Chongqing 400044, China; 2. College of Automation, Hangzhou Dianzi University, Hangzhou 310018, China
英文摘要 Because of channels’ fixed allocation the routing algorithms in general wireless network can’t be directly used for cognitive radio network, the appropriate routing selection strategy needs to be provided aiming at the specific characteristics of dynamic channels in cognitive radio network. While combining with the basic process of on-demand routing, introducing fuzzy control technology and taking full account of the influence of two metrics which were channel utilization and channel perception, then provided a feasible routing selection strategy with double advantage of lower cost and shortest path. Simulation results show that, compared with the on-demand routing protocol in general wireless network, the routing selection strategy based on fuzzy control has better packet delivery ratio performance and throughput performance.
英文关键词 cognitive radio; fuzzy control; routing selection cost; shortest path
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页码 262-264
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文献标志码 A