Downlink MIMO Diversity with Maximal-Ratio Combining in Heterogeneous Cellular Networks

被引：0
|
作者：
Tanbourgi, Ralph [1 ]
Jondral, Friedrich K. [1 ]
机构：
[1] Karlsruhe Inst Technol, Commun Engn Lab, D-76021 Karlsruhe, Germany
来源：
2015 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2015年
关键词：
MIMO; space-time coding; maximal-ratio combining; coverage probability; Poisson point process; INTERFERENCE; PERFORMANCE;
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
We present a stochastic model for analyzing the performance of multiple-input multiple-output (MIMO) diversity in a downlink heterogeneous cellular network. Multi-antenna receivers are assumed to perform maximal-ratio combining (MRC). We consider interference-blind (IB) MRC and interference-aware (IA) MRC, where the latter takes the interference power at each antenna into account. Using tools from stochastic geometry, we derive the coverage probability for both types of MRC as a function of various tier-specific system parameters, including the number of base station transmit antennas in each tier. The model is then used to compare the performance of IB-MRC and IA-MRC. One important insight is that IA-MRC becomes less favorable than IB-MRC in a transmit-diversity system due to a larger interference correlation across receive antennas.
引用
收藏
页码：1831 / 1837
页数：7
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