Outage Analysis of Distributed Antenna System with Delayed CSI and Unequal-Power Cochannel Interferers

Outage Analysis of Distributed Antenna System with Delayed CSI and Unequal-Power Cochannel Interferers
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DOI：
10.1109/lcomm.2014.030914.140088
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发表时间：
2014-03
期刊：
IEEE Communications Letters
影响因子：
--
通讯作者：
Jun Chen-;Suili Feng;Miaona Huang;Yuan Liu;Feng Ke
Jun Chen-;Suili Feng;Miaona Huang;Yuan Liu;Feng Ke
中科院分区：
其他
文献类型：
--
作者：
Jun Chen-;Suili Feng;Miaona Huang;Yuan Liu;Feng Ke

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分布式天线系统（DAS）已被广泛应用于下一代无线网络。然而，以往的研究大多集中在完美信道状态信息（CSI）上，在实际应用中并不总是可用的。在这篇文章中，推导了在更现实的传播条件下DAS最大比传输（MRT）的中断概率。这项工作的主要贡献是分析了CSI和不等功率共信道干扰（CCI）中的路径损耗和反馈延迟。通过蒙特卡罗仿真验证了所导出的停机概率封闭表达式。
Distributed antenna systems (DAS) have been adopted in the next generation wireless networks. However, the most prior research focus on perfect channel state information (CSI), which is not always available in practice. In this letter, the outage probability of maximum ratio transmission (MRT) for DAS is derived under more realistic propagation conditions. The main contribution of this work is that the analysis accounts for path loss and feedback delay in CSI and unequal-power cochannel interferers (CCI). The derived closed-form expressions for outage probability are verified by Monte Carlo simulations.