Energy efficiency analysis of single-cell massive MIMO under pilot contamination
作者： Umer Amin , Shahzad Anwar , Waseem Khan , Saqib Ishaq Khan , None
DOI: 10.1109/IBCAST.2016.7429958
关键词:
摘要: Multiuser MIMO with large antenna arrays is a promising technology for future cellular networks as it offers higher spectral efficiency and reduction in transmit power. However, deploying more antennas at the base stations (BSs) requires same number of radio frequency (RF) chains that BS antennas. Circuit power consumed these RF scales linearly The circuit makes overall consumption significantly albeit In size regime, this can not be neglected results poor energy efficiency. paper, we will evaluate maximum-ratio-transmission (MRT) precoding downlink single-cell massive under realistic model. More specifically, so called pilot contamination which occurs systems when active users K greater than sequence length t. We provide analytical expressions signal-to-interference-plus-noise ratio (SINR) function M. Moreover, optimal value M terms maximizing system obtained analytically verified through simulations.
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