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基于信道可用性的认知无线网络跨层路由协议 被引量：1

Probability-Based Cross Layer Routing Protocol in Cognitive Radio Networks
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摘要 认知无线网络中,认知节点的频谱资源具有动态变化特征,如何充分利用频谱资源,提高路由性能,已成为当前研究热点.本文在AODV协议基础上,提出了一种基于可用性的跨层路由协议——PCLRP-AODV.该协议综合考虑信道的可用性和传输时延,在保证信道可用性的基础上,选择时延最小的路径作为最佳路由.仿真实验表明,该路由协议在提高系统吞吐率的同时,能够有效减少网络传输的时延,明显改善路由性能. Cognitive radio networks draw more and more attention in recent years, but because nodes＇ communication frequency is changing dynamically and very difficultly utilized, so improving frequency probability becomes a hot research topic gradually. After seriously studying AODV protocol, a novel PCLRP- AODV（probability-based cross-layer routing AODV） protocol was proposed in this paper. To achieve high probability and low time delay of communication channel, the modified routing algorithm selects the best route by delay path as well as channel availability. Simulation results indicates that PCLRP could significantly improve the system throughput performance and simultaneously reduce transmission delay.
作者 高良诚 刘杰
机构地区 铜陵职业技术学院
出处 《安徽师范大学学报（自然科学版）》 CAS 北大核心 2014年第2期134-138,共5页 Journal of Anhui Normal University(Natural Science)
基金 安徽省高校省级自然科学研究项目(KJ2012Z418)
关键词 认知无线网络 路由协议 跨层 可用性 时延 eognitive radio network routing protocol cross-layer probability time delay
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献8

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二级参考文献39

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共引文献6

同被引文献13

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安徽师范大学学报（自然科学版）
2014年 第2期

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