| 一种机会协作重传协议及其性能分析模型研究 |
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| 引用本文： | 崔海霞,韦岗,张军. 一种机会协作重传协议及其性能分析模型研究[J]. 电子学报, 2010, 38(10): 2410-2415 |
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| 作者姓名： | 崔海霞 韦岗 张军 |
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| 作者单位： | 华南理工大学电子与信息学院,广东广州510640;广州大学物理与电子工程学院,广东广州510006;华南理工大学电子与信息学院,广东广州,510640 |
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| 基金项目： | 国家自然科学基金,广东省自然科学基金,华为高校基金 |
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| 摘 要： | 本文基于机会中继协作通信系统的优良特性,改进了传统的多中继ARQ(Automatic Repeat Request)协作分集机制,联合物理层与数据链路层优化了无线频谱与能量的利用率,并且首次提出了采用Markov(马尔可夫)吸收链方法的端到端性能分析模型.在此分析模型的基础上,对本文改进的机会协作重传协议进行了端到端成功传输概率、丢包率、时延、吞吐量等性能参数的数值分析,最后用仿真实验对此模型进行了验证,详细讨论了最大重传次数、信道衰落参数、总发送功率等对性能的影响.结果表明,本文改进的机会协作重传协议在节能、抗信道衰落方面,表现出了比直接重传协议和传统的多中继协作重传协议具有更优越的性能.
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| 关 键 词： | 协作分集 机会中继 Markov吸收链 |
| 收稿时间： | 2009-10-12 |
An Opportunistic Cooperative Retransmission Protocol and the Research of Its Performance Analytical Model |
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| CUI Hai-xia,WEI Gang,ZHANG Jun. An Opportunistic Cooperative Retransmission Protocol and the Research of Its Performance Analytical Model[J]. Acta Electronica Sinica, 2010, 38(10): 2410-2415 |
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| Authors: | CUI Hai-xia WEI Gang ZHANG Jun |
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| Affiliation: | CUI Hai-xia1,2,WEI Gang1,ZHANG Jun1(1.School of Electronics and Information Engineering,South China University of Technology,Guangzhou,Guangdong 510640,China,2.School of Physics and Electronics Engineering,Guangzhou University,Guangdong 510006,China) |
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| Abstract: | Based on the eminent characteristics of opportunistic relaying cooperative communication system,this paper improves the conventional multi-relay ARQ(Automatic Repeat Request)cooperative diversity scheme,and optimizes the utility of wireless spectrum and energy by designing physical layer and data link layer jointly.The end-to-end performance analytical model using absorbing Markov chain is firstly proposed.With the application of this proposed analytical model,we analyze our improved opportunistic cooperati... |
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| Keywords: | cooperative diversity opportunistic relaying absorbing Markov chain |
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