Relay Technologies for WiMAX and LTE-Advanced Mobile Systems
Relay Technologies for WiMAX and LTE-Advanced Mobile Systems
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DOI：
10.1109/mcom.2009.5273815
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发表时间：
2009-10-01
影响因子：
11.2
通讯作者：
Mao, Guoqiang
中科院分区：
文献类型：
--
作者：
Yang, Yang;Hu, Honglin;Mao, Guoqiang
在诸如3GPP LTE-高级、IEEE 802.16 j和IEEE 802.16 m的下一代移动的宽带通信系统的标准化过程中，已经积极地研究和考虑了中继技术。本文首先介绍并比较了LTE-Advanced和WiMAX标准中不同的中继类型。仿真结果表明，中继技术可以有效地提高业务覆盖率和系统吞吐量。三个中继传输方案，然后总结和评估在不同的无线信道条件下的传输效率。最后，一个集中式的配对方案和分布式的配对方案，有效的中继选择。仿真结果表明，所提出的方案可以最大限度地提高服务的UE单元的数量和小区的整体吞吐量在一个现实的多RS-多UE的场景。
Relay technologies have been actively studied and considered in the standardization process of next-generation mobile broadband communication systems such as 3GPP LTE-Advanced, IEEE 802.16j, and IEEE 802.16m. This article first introduces and compares different relay types in LTE-Advanced and WiMAX standards. Simulation results show that relay technologies can effectively improve service coverage and system throughput. Three relay transmission schemes are then summarized and evaluated in terms of transmission efficiency under different radio channel conditions. Finally, a centralized pairing scheme and a distributed pairing scheme are developed for effective relay selection. Simulation results show that the proposed schemes can maximize the number of served UE units and the overall throughput of a cell in a realistic multiple-RS-multiple-UE scenario.