Cooperative distributed antenna systems for mobile communications [Coordinated and Distributed MIMO]
Cooperative distributed antenna systems for mobile communications [Coordinated and Distributed MIMO]
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DOI：
10.1109/mwc.2010.5490977
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发表时间：
2010-06
影响因子：
12.9
通讯作者：
Xiao-hu You;Dongmei Wang;B. Sheng;Xiqi Gao;Xinsheng Zhao;Ming Chen
中科院分区：
文献类型：
--
作者：
Xiao-hu You;Dongmei Wang;B. Sheng;Xiqi Gao;Xinsheng Zhao;Ming Chen
协作分布式天线系统由于其在增强移动的通信系统的覆盖和频谱效率方面的潜力，近年来引起了相当大的关注。在这篇文章中，协同DAS的移动的通信的概念描述，DAS的关键技术，包括分布式多输入多输出的单用户和多用户，切换和发射功率分配。此外，理论和仿真结果的频谱或发射功率效率的合作DAS给出和传统的共置天线系统的比较。结果表明，合作DAS可以提供非常有前途的性能增强容量和发射功率效率。
Cooperative distributed antenna systems have drawn considerable attention in recent years due to their potential to enhance both the coverage and the spectral efficiency of mobile communication systems. In this article the conceptual description of a cooperative DAS for mobile communications is presented together with key techniques for DASs, including distributed multiple- input multiple-output for single and multiple users, handover, and transmit power allocation. Furthermore, theoretical and simulation results on the spectral or transmit power efficiency of cooperative DASs are given and compared with those on conventional collocated antenna systems. It is shown that a cooperative DAS can provide very promising performance enhancements in capacity and transmit power efficiency.