一种两跳感知系统中断性能优化方案

doi:10.3969/j.issn.1001-2400.2013.01.030

J4 ›› 2013, Vol. 40 ›› Issue (1): 177-182.doi: 10.3969/j.issn.1001-2400.2013.01.030

一种两跳感知系统中断性能优化方案

唐菁敏¹;冯思泉²;龙华¹;刘增力¹

(1. 昆明理工大学信息工程与自动化学院，云南昆明 650500；
2. 重庆电子工程职业学院，重庆 401331)

收稿日期:2011-10-12 出版日期:2013-02-20 发布日期:2013-03-28
通讯作者: 唐菁敏
作者简介:唐菁敏(1979-)，男，博士，E-mail: tang_min213 @163.com．
基金资助:
国家自然科学基金资助项目(60872157)；云南省社会发展科技计划资助项目(2009CA027)；云南省科技厅应用基础研究计划资助项目(2011FB035);云南省应用基础研究计划资助项目(KKSY201203029)

Optimization scheme for outage performance in a two-hop cognitive system

TANG Jingmin¹;FENG Siquan²;LONG Hua¹;LIU Zengli¹

(1. Faculty of Information Eng. and Automation, Kunming Univ. of Science and Tech., Kunming 650500， China;
2. Chongqing College of Electronic Eng., Chongqing 401331， China)

Received:2011-10-12 Online:2013-02-20 Published:2013-03-28
Contact: TANG Jingmin

摘要/Abstract

摘要：

针对交叉共享方式下的两跳协作感知网络，研究了多个感知用户的协作感测策略，推导了在放大转发传输协议下感知系统的中断概率表达式，并提出了一种联合优化方案．在保证一定频谱感测性能指标的前提下，通过联合优化感测门限、感测时长等参数最小化感知系统的中断概率．理论分析与仿真结果表明，此优化方案能有效改善感知系统的中断性能，提升感知网络传输的可靠性．

关键词: 感知无线电, 交叉共享, 协作感测, 协同传输, 中断概率

Abstract:

By investigating the two-hop cooperative cognitive network in an overlay sharing(OS) mode, a cooperative detection strategy for the multiple cognitive user system is considered and outage probability formulation on the Amplify-and-Forward(AF) protocol is deduced. By optimizing the parameters such as sensing time and threshold, an optimization scheme has been proposed, which is proven to minimize the outage probability on the premise of guaranteeing fixed detection performance. Theoretical analysis and simulation result show that the optimal scheme can improve outage performance of the cognitive system and enhance transmission reliability of the cognitive network.

Key words: cognitive radio, overlay sharing, cooperative sensing, cooperative transmission, outage probability

唐菁敏;冯思泉;龙华;刘增力. 一种两跳感知系统中断性能优化方案[J]. J4, 2013, 40(1): 177-182.

TANG Jingmin;FENG Siquan;LONG Hua;LIU Zengli. Optimization scheme for outage performance in a two-hop cognitive system[J]. J4, 2013, 40(1): 177-182.

参考文献

［1］ Cabric D, Mishra S M, Brodersen R W. Implementation Issues in Spectrum Sensing for Cognitive Radios［C］//Thirty-Eighth Asilomar Conference on Signals, Systems and Computers. Pacific Grove: Institute of Electrical and Electronics Engineers Computer Society, 2004:772-776.
［2］ Cui T, Gao F F, Nallanathan A. Optimization of Cooperative Spectrum Sensing in Cognitive Radio［J］. IEEE Trans on Vehicular Technology, 2011, 60(4): 1578-1589.
［3］ Peh E C Y, Liang Y C, Guan Y L. Cooperative Spectrum Sensing in Cognitive Radio Networks with Weighted Decision Fusion Schemes［J］. IEEE Trans Wireless Communications, 2010, 12(9): 3838-3847.
［4］丁汉清, 杨家玮, 赵志远. 认知无线中自适应分步合并协作频谱感知算法［J］. 西安电子科技大学学报, 2010, 37(4): 665-670.
Ding Hanqing, Yang Jiawei, Zhao Zhiyuan. Adapive Step by Step Combination Cooperative Spectrum Sensing in Cognitive Systems［J］. Journal of Xidian University, 2010, 37(4): 665-670.
［5］ Peh E C Y, Liang Y C, Guan Y L, et al. Optimization of Cooperative Sensing in Cognitive Radio Networks: a Sensing-Throughput Tradeoff View［J］. IEEE Trans on Vehicular Technology, 2009, 58(9): 5294-5299.
［6］ Hoang A T, Liang Y C, Wong D, et al. Opportunistic Spectrum Access for Energy-Constrained Cognitive Radios［J］. IEEE Trans Wireless Communications, 2009, 8(3): 1206-1211.
［7］ Wang H Z, Ma S D, Ng T S. On Performance of Cooperative Communication Systems with Spatial Random Relays［J］. IEEE Trans on Communications, 2011, 59(4): 1190-1199.
［8］ Wang H, Lee J, Kim S, et al. Capacity Enhancement of Secondary Links Through Spatial Diversity in Spectrum Sharing［J］. IEEE Trans Wireless Communications, 2010, 9(2): 494-499.
［9］ Han Y, Pandharipande A, Ting S H. Cooperative Decode-and-Forward Relaying for Secondary Spectrum Access［J］. IEEE Trans Wireless Communications, 2009, 8(10): 4945-4950.
［10］林霏, 罗涛, 乐光新. 不同功率分配与中继位置下协同通信SER性能分析［J］. 中国电机工程学报, 2008, 28(19): 101-105.
Lin Fei, Luo Tao, Yue Guangxin. Analysis of SER Performance for Cooperative Communications with Different Power Allocation and Relay Location［J］. Proceedings of the CSEE, 2008, 28(19):101-105.
［11］ Laneman J N, Tse D N C, Wornell G W. Cooperative Diversity in Wireless Networks: Efficient Protocols and Outage Behavior［J］. IEEE Trans Information Theory, 2004, 50(12): 3062-3080.

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一种两跳感知系统中断性能优化方案

Optimization scheme for outage performance in a two-hop cognitive system

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