두 유저 MISO 간섭 채널에서 불완전한 채널 정보에 기반한 빔포밍 게임

이정훈; 이진; 류종열
July 2017
Journal of the Korea Institute of Information & Communication En;Jul2017, Vol. 21 Issue 7, p1299
Academic Journal
In this paper, we consider a beamforming game between the transmitters in a two-user multiple-input single-output interference channel using limited feedback and investigate how each transmitter is able to find a modified strategy from the quantized channel state information (CSI). In the beamforming game, each of the transmitters (i.e., a player) tries to maximize the achievable rate (i.e., a payoff function) via a proper beamforming strategy. In our case, each transmitter’s beamforming strategy is represented by a linear combining factor between the maximum ratio transmission (MRT) and the zero forcing (ZF) beamforming vectors, which is the Pareto optimal achieving strategy. With the quantized CSI, the transmitters' strategies may not be valid because of the quantization errors. We propose a modified solution, which takes into account the effects of the quantization errors.


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