The effect of unequal power reception in cellular MIMO networks
The effect of unequal power reception in cellular MIMO networks
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DOI：
10.1016/j.sigpro.2009.12.003
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发表时间：
2010-06
期刊：
影响因子：
--
通讯作者：
A. Zanella;M. Chiani;M. Win
中科院分区：
文献类型：
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作者：
A. Zanella;M. Chiani;M. Win
高速无线网络的多输入多输出（MIMO）系统越来越受到人们的关注。尽管如此，一些重要的问题，如蜂窝MIMO网络中不均匀功率接收的影响，仍然有待回答。在本文中，我们提出了一个分析框架来评估当来自不同发射天线的接收功率因用户的空间分布、功率分配策略和阴影条件而变化时，这种网络的性能。特别是，我们考虑在平坦瑞利衰落环境中使用最小均方误差（MMSE）组合，然后使用连续干扰消除（SIC）对M-PSK信号进行相干检测。该方法适用于任意数量的接收和发射天线。该框架也可应用于具有SIC的低复杂度点对点MIMO系统的性能评估。我们的研究结果为多用户MIMO网络的干扰管理策略提供了见解。
There has been an increasing interest in multiple-input-multiple-output (MIMO) systems for high speed wireless networks. Despite this, some important questions, such as the effect of unequal power reception in cellular MIMO networks, still remained open to be answered. In this paper we propose an analytical framework to evaluate the performance of such networks when the received powers from different transmit antennas vary due, for example, to spatial distribution of users, power allocation strategies, and shadowing conditions. In particular, we consider coherent detection of M-PSK signals in a flat Rayleigh fading environment using minimum mean square error (MMSE) combining, followed by successive interference cancellation (SIC). The methodology is valid for arbitrary number of receive and transmit antennas. This framework can also be applied to the performance evaluation of low complexity point-to-point MIMO systems with SIC. Our results provide insight into interference management strategies for multiuser MIMO networks.