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浙江大学学报(工学版)
J4  2014, Vol. 48 Issue (3): 384-390    DOI: 10.3785/j.issn.1008-973X.2014.03.002
计算机技术，无线电电子学     
CRSN中一种基于频谱已知的多信道机会路由协议
潘雄振,蒋铃鸽,何晨
上海交通大学 电子信息与电气工程学院, 上海 200240
 Spectrum aware based multi-channel opportunistic routing in CRSN
PAN Xiong-zhen, JIANG Ling-ge,HE Chen
School of Electronic Information and Electrical Engineering, Shanghai Jiaotong University, Shanghai 200240, China
 全文: PDF(1975 KB)  
摘要：

为了解决在无线认知传感网络（CRSN）中，因为无线链路的不稳定性所导致的一般路由方式取得的吞吐量非常有限的问题,提出一种基于频谱已知的多信道机会路由协议（SAMOR）.该路由方式一方面可以克服无线链路的不稳定性,另一方面可以提高频谱资源的利用率.在构造节点的传输竞争集时,综合考虑了投递率、能量消耗和时延三者之间的权衡设计了一个竞争集优化算法.在数据的传输过程中,中继节点和数据信道的选择是在一种基于控制信道的跨层协商机制（MC-OMAC）中完成的.仿真结果表明:SAMOR比基于频谱已知的机会路由协议（SAOR）在平均吞吐量、平均丢包率和平均时延上表现得更加优越;链路的平均投递率越小,SAMOR表现出来的优势就越明显.
关键词： 无线传感器网络;  认知无线电;  机会路由;  跨层    
Abstract:

The throughput achieved by the traditional routing in cognitive radio sensor network (CRSN) is quite limited because of the instability of wireless links. A spectrum aware based multi-channel opportunistic routing (SAMOR) was proposed, which can overcome the instability of wireless links, and at the same time improve the utilizations of spectrum. When constructing the forwarding candidate set, a modification algorithm was presented which considered the trade-off among the delivery, energy consumption and delay. During the data transmit process, the selection of data channel and relay node is completed in a control channel based cross-layer mechanism (MC-OMAC). Simulation shows that SAMOR perform better than spectrum aware opportunistic routing (SAOR) in average throughput, average loss ratio and average delay. The advantage of SAMOR is more obvious when the average delivery of wireless link is similar.
Key words:  wireless sensor network    cognitive radio    opportunistic routing    cross-layer
出版日期: 2014-04-02
基金资助:

国家科技重大专项资助项目（2011ZX03003-001-03）.
通讯作者: 蒋铃鸽，女，教授，博导.     E-mail: lgjiang@sjtu.edu.cn
作者简介: 潘雄振（1988-），男，硕士生，从事无线传感网络中路由协议的研究. E-mail：sjtuxiong@sjtu.edu.cn
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引用本文:

潘雄振,蒋铃鸽,何晨. CRSN中一种基于频谱已知的多信道机会路由协议[J]. J4, 2014, 48(3): 384-390.

链接本文:

http://www.zjujournals.com/xueshu/eng/CN/Y2014/V48/I3/384

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