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This paper considers coordinated user scheduling in a multi-user two-hop multi-input multi-output relay system with limited feedback. The proposed scheme utilizes a quantized transmit correlation and channel quality information, enabling to achieve both interference mitigation and multi-user diversity (MUD) gain. To this end, we first investigate the effect of quantization error on the statistical...
This paper considers cooperative eigen beamforming with the use of partial channel information (e.g., transmit correlation) to maximize achievable sum-rate of multi-user dual-hop multiple-input single-output relay channels. By exploiting the transmit correlation in a cooperative manner, the proposed scheme selects a pair of users whose transmit correlation have the largest phase difference of the...
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