| 一种基于条件概率重传的协作ARQ协议 |
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| 引用本文： | 吴润铎,郑宝玉,季薇.一种基于条件概率重传的协作ARQ协议[J].南京邮电大学学报(自然科学版),2012,32(2):39-43,51. |
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| 作者姓名： | 吴润铎 郑宝玉 季薇 |
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| 作者单位： | 1. 南京邮电大学通信与信息工程学院,江苏南京,210003
2. 南京邮电大学信号处理与传输研究院,江苏南京,210003 |
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| 基金项目： | 国家自然科学基金(60972039);江苏省自然科学基金重点项目(NY209003)资助项目 |
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| 摘 要： | 在协作ARQ协议中,重传过程由中继辅助完成。研究了在认知无线电网络二级用户通信场景下,采用一种基于条件概率重传的新协作ARQ协议,并增加中继向基站发送确认信号的机制,即ACK-R(Acknowledgment sig-nals from the Relays)机制,经过马尔科夫分析和仿真证明,可以显著增加系统的吞吐量.
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| 关 键 词： | 协作ARQ 条件概率重传 ACK-R机制 吞吐量 重传率 |
A Cooperative ARQ Protocol Based on Conditional Probability Retransmission |
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| WU Run-duo
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ZHENG Bao-yu
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JI Wei.A Cooperative ARQ Protocol Based on Conditional Probability Retransmission[J].Journal of Nanjing University of Posts and Telecommunications,2012,32(2):39-43,51. |
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| Authors: | WU Run-duo ZHENG Bao-yu JI Wei |
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| Institution: | 1.College of Telecommunications & Information Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China2.Institute of Signal Processing and Transmission,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | The retransmission process between sender and receiver is assisted by a relay in Cooperative Automatic Repeat request(C-ARQ).We find that in cognitive radio networks with multiple second users,the total second networks throughput increases if the system uses a new C-ARQ protocol based on conditional probability retransmission and implements acknowledgment signals from the relays. |
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| Keywords: | cooperative ARQ conditional probability retransmission ACK-R mechanism throughput retransmission rate |
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