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| 两种中继协同HARQ协议 | |
| 引用本文： | 陈吉学,王文博.两种中继协同HARQ协议[J].北京邮电大学学报,2008,31(2):123-127. |
| 作者姓名： | 陈吉学 王文博 |
| 作者单位： | 北京邮电大学 泛网无线通信教育部重点实验室，北京 100876 |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| 摘 要： | 提出了两种中继协同Rayleigh衰落信道下混合重传技术（HARQ）协议——中继控制HARQ协议和目的端控制HARQ协议，是否HARQ由中断概率决定。慢衰落下理论分析和仿真结果表明，中继控制HARQ协议中，中继平均接收信噪比（SNR）越小， HARQ带来的增益越大。目的端控制HARQ协议中，源和中继的上行链路质量越差，目的端平均接收信噪比越小，HARQ带来的增益越大。 关 键 词: 中图分类号: 文献标识码: A Abstract: Key words: |
| 关 键 词： | 中继协同 中继控制 目的端控制 混合重传技术协议 误码率 |
| 文章编号： | 1007-5321(2008)02-0123-05 |
| 收稿时间： | 2007-6-8 |
| 修稿时间： | 2007年6月8日 |
Two HARQ Protocols for Relay Cooperative Systems |
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| CHEN Ji-xue,WANG Wen-bo.Two HARQ Protocols for Relay Cooperative Systems[J].Journal of Beijing University of Posts and Telecommunications,2008,31(2):123-127. | |
| Authors: | CHEN Ji-xue WANG Wen-bo |
| Affiliation: | Key Laboratory of Universal Wireless Communication, Ministry of Education，Beijing University of Posts and Telecommunications, Beijing 100876, China |
| Abstract: | Two Hybrid Automatic Repeat Request（HARQ） protocols for relay cooperative Rayleigh fading systems are proposed, they are relay-controlled and destination-controlled protocols, the control on each side is based on the outage probability. Numerical analysis and simulation under the slow fading channel show that the lower average received signal noise ratio（SNR） of the relay, and good performance gain will be got in relay-controlled HARQ protocol. In the destination-controlled HARQ protocol, when the uplink qualities of the source and relay are worse, the average received SNR of the destination will become lower, the systems performance can be improved efficiently. |
| Keywords: | relaying cooperation relay-controlled destination-controlled Hybrid automatic repeat request protocol bit error rate |
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