| 一种基于HARQ反馈的切换合并发送分集技术 |
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| 引用本文： | 金爽,潘鸣宇,杨鸿文,程卫东.一种基于HARQ反馈的切换合并发送分集技术[J].通信技术,2008,41(12). |
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| 作者姓名： | 金爽 潘鸣宇 杨鸿文 程卫东 |
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| 作者单位： | 1. 北京邮电大学,北京,100876
2. 中国移动通信研究院,北京,100053 |
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| 摘 要： | 本文提出了一种与HARQ相结合的天线选择发送分集方案,该方案利用HARQ的ACK/NAK信号作为天线选择指示,如果反馈ACK则继续使用当前天线,否则切换到下一个天线.仿真表明,在低速情况下,新方案相比单天线系统有显著的分级增益,与传统的选择分集相比,能节约反馈,简化系统,同时性能损失不大.
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| 关 键 词： | 切停合并 误帧率 吞吐量 |
A Switched Combining Transmit Diversity based on HARQ |
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| JIN Shuang,PAN Ming-yu,YANG Hong-wen,CHENG Wei-dong.A Switched Combining Transmit Diversity based on HARQ[J].Communications Technology,2008,41(12). |
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| Authors: | JIN Shuang PAN Ming-yu YANG Hong-wen CHENG Wei-dong |
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| Affiliation: | JIN Shuang,PAN Ming-yu,YANG Hong-wen,CHENG Wei-dong (Beijing University of Posts , Telecommunications,BUPT,Beijing 100876,China,China Mobile Research Institute,Beijing 10053,China) |
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| Abstract: | This paper proposes a new transmit diversity scheme combined with HARQ.The scheme utilizes the ACK/NAK message as the antenna selection indicator,namely,if an ACK is received,the transmitter would stay at the current antenna and an NAK would force the antenna to switch.Simulation results show that the proposed scheme has obvious diversity gain over single antenna at low velocity environment.Compared with classical antenna selection schemes,this scheme can save the feedback load,simplify the system and be sm... |
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| Keywords: | HARQ |
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