Energy efficient multiuser MIMO systems with distributed transmitters
作者： Jingon Joung , Yeow Khiang Chia , Sumei Sun
DOI: 10.1109/GLOCOM.2013.6831448
关键词: 3G MIMO 、 Spatial multiplexing 、 Computer science 、 Transmitter 、 Transmitter power output 、 MIMO 、 Precoding 、 Electronic engineering 、 Heuristic (computer science) 、 Control theory 、 Power control
摘要: In this paper, we consider a distributed transmitter (D-TX) system, in which each TX has dissimilar power amplifier with different maximum output power, and number of transmit antennas. To improve energy efficiency (EE) the D-TX design multiuser multiple-input multiple-output (MU-MIMO) precoding matrix, antenna selection (AS) control (PC) matrix. A conventional zero-forcing based MU-MIMO is shown to be EE optimal for given AS PC. Optimal heuristic PC methods are proposed precoding. For AS, also propose algorithms. Average outage probability, performance evaluated compare three algorithms, observe gap between methods. From numerical results, discuss tradeoff complexity provide useful guide efficient system design.
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