How do we design CoMP to achieve its promised potential?
How do we design CoMP to achieve its promised potential?
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DOI：
10.1109/mwc.2013.6472201
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发表时间：
2013-03
影响因子：
12.9
通讯作者：
Chenyang Yang;Shengqian Han;Xueying Hou;A. Molisch
中科院分区：
文献类型：
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作者：
Chenyang Yang;Shengqian Han;Xueying Hou;A. Molisch
协调多点或CoMP传输已经被认为是用于全频率重用蜂窝系统的频谱高效技术，其中基站协作以减少或消除小区间干扰。但是，在它能够投入实际使用之前，仍然存在许多障碍。在这篇文章中，我们首先讨论的CoMP系统和信道的特点，是不同于单小区多天线系统。然后，我们给出了一个概述的国家的最先进的方法，用于应对的因素，限制潜在的CoMP。一个主要问题是获取信道状态信息，这为TDD和FDD系统带来了不同的挑战。另一组挑战来自协作基站之间的回程连接上可用的有限容量。可能的解决方案和它们的关系，蜂窝标准的基本原理进行了讨论。
Coordinated multipoint, or CoMP, transmission has been recognized as a spectrally efficient technique for full frequency reuse cellular systems, in which base stations cooperate to reduce or eliminate intercell interference. However, there are still many obstacles before it can be put into practical use. In this article, we first discuss the features of CoMP systems and channels that are distinct from single-cell multi-antenna systems. We then give an overview of state-of-the-art approaches for coping with the factors that limit the potential of CoMP. A major issue is the acquisition of channel state information, which creates different challenges for TDD and FDD systems. Another set of challenges arises from the limited capacity available on the backhaul connections between the cooperating base stations. Both the fundamentals of possible solutions and their relations to cellular standards are discussed.