Multi-Cell MIMO Cooperative Networks: A New Look at Interference
Multi-Cell MIMO Cooperative Networks: A New Look at Interference
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DOI：
10.1109/jsac.2010.101202
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发表时间：
2010-12-01
影响因子：
16.4
通讯作者：
Yu, Wei
中科院分区：
文献类型：
--
作者：
Gesbert, David;Hanly, Stephen;Yu, Wei
本文介绍了无线网络中多小区MIMO（多输入多输出）协作的理论和目前已知的技术的概述。在密集网络中，干扰成为限制系统容量的关键因素，多小区协作可以显著提高系统性能。值得注意的是，这样的技术通过允许用户数据由几个干扰基站联合处理，从而模仿大型虚拟MIMO阵列的益处，从而实际上利用了小区间干扰。多小区MIMO合作的概念从不同的角度进行了研究，包括检查的基本信息理论的限制，审查的编码和信号处理算法的发展，并超越，考虑非常实际的问题，可扩展性和系统级集成。一些有前途的和相当基础的研究途径也提出了建议。
This paper presents an overview of the theory and currently known techniques for multi-cell MIMO (multiple input multiple output) cooperation in wireless networks. In dense networks where interference emerges as the key capacity-limiting factor, multi-cell cooperation can dramatically improve the system performance. Remarkably, such techniques literally exploit inter-cell interference by allowing the user data to be jointly processed by several interfering base stations, thus mimicking the benefits of a large virtual MIMO array. Multi-cell MIMO cooperation concepts are examined from different perspectives, including an examination of the fundamental information-theoretic limits, a review of the coding and signal processing algorithmic developments, and, going beyond that, consideration of very practical issues related to scalability and system-level integration. A few promising and quite fundamental research avenues are also suggested.