| 3GPP LTE中基于HARQ技术的吞吐量性能研究 |
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| 引用本文： | 杨桂芹,胡滢,赵春和.3GPP LTE中基于HARQ技术的吞吐量性能研究[J].无线电工程,2013,43(4). |
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| 作者姓名： | 杨桂芹 胡滢 赵春和 |
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| 作者单位： | 兰州交通大学电子与信息工程学院,甘肃兰州,730070 |
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| 基金项目： | 甘肃省自然科学基金资助项目 |
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| 摘 要： | 简要介绍了LTE系统下行链路中的混合自动请求重传(HARQ)技术原理。为证明HARQ对LTE系统吞吐量性能的改善,分别在QPSK、16QAM和64QAM三种调制方式下,对系统不加HARQ、强制重传及加入HARQ时系统的吞吐量性能进行了分析研究。仿真结果表明,加入HARQ时系统吞吐量明显提高,且提高范围介于未加HARQ及强制重传之间,证明了HARQ技术可有效改善LTE系统吞吐量性能,提高LTE系统的传输质量。
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| 关 键 词： | 3GPP LTE 下行链路 HARQ 吞吐量 |
Research on Throughput Performance of 3GPP LTE System Based on HARQ |
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| YANG Gui-qin
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HU Ying
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ZHAO Chun-he.Research on Throughput Performance of 3GPP LTE System Based on HARQ[J].Radio Engineering of China,2013,43(4). |
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| Authors: | YANG Gui-qin HU Ying ZHAO Chun-he |
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| Abstract: | This paper introduces briefly the principle of HARQ technology of LTE system.To verify that the HARQ technology can improve the throughput performance of LTE system,the throughputs of such three systems as without HARQ,forced to retransmit and with HARQ are compared respectively under such three modulation modes as QPSK,16QAM and 64QAM.The simulation results show that the throughput of the system with HARQ is much better than the system without HARQ,and the range of the throughput improvement is between the system without HARQ and the system forced to retransmit.It is fully proved that the HARQ technology can improve the transmission quality of the TD-LTE system effectively. |
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| Keywords: | 3GPP LTE down-link HARQ throughput |
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