Performance analysis of large-scale MU-MIMO with AF relaying in the presence of interference

Mengmeng Liu , Jianhua Zhang, Ping Zhang
Telecommunications (ICT), 2015 22nd International Conference on
Publish Year: 2015

Abstract: This paper analyzes the performance of a large-scale multiuser multiple-input multiple-output (MU-MIMO) system with amplify-and-forward (AF) relaying in the presence of co-channel interference. Each user terminal (UT) has a single antenna while the relay is equipped with very large antenna arrays. To evaluate the impact of large number of relay antennas on the performance of the considered system, we derive a lower bound on the achievable rate. We also perform a large system analysis in the regimes of high signal-to-noise ratio (SNR), large number of relay antennas and large number of UTs. Numerical results are presented to verify the theoretical analysis.

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