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http://dx.doi.org/10.6109/jkiice.2017.21.7.1299

Beamforming Games with Quantized CSI in Two-user MISO ICs  

Lee, Jung Hoon (Department of Eletronics Engineering, Hankuk University of Foreign Studies)
Lee, Jin (Samsung Electronics)
Ryu, Jong Yeol (Department of Information and Communications Engineering, Gyeongsang National University)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.21, no.7, 2017 , pp. 1299-1305 More about this Journal
Abstract
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.
Keywords
Beamforming; Nash bargaining; limited feedback; multiple-input single-output; interference channels;
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