Quantization Error-Aware Tomlinson-Harashima Precoding in Multiuser MISO Systems with Limited Feedback
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概要
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In this letter, a quantization error-aware Tomlinson-Harashinma Precoding (THP) is proposed based on the equivalent zero-forcing (ZF) criterion in Multiuser Multiple-Input Single-Output (MU-MISO) systems with limited feedback, where the transmitter has only quantized channel direction information (CDI). This precoding scheme is robust to the channel uncertainties arising from the quantization error and the lack of channel magnitude information (CMI). Our simulation results show that the new THP scheme outperforms the conventional precoding scheme in limited feedback systems with respect to Bit Error Ratio (BER).
著者
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LIU Jianming
Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications
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SUN Yanzhi
Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications
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WU Muqing
Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications
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ZHANG Chaoyi
Laboratory of Network System Architecture and Convergence, Beijing University of Posts and Telecommunications
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WU Muqing
Laboratory of Network System Architecture and Convergence of Beijing University of Posts and Telecommunications
関連論文
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- Quantization Error-Aware Tomlinson-Harashima Precoding in Multiuser MISO Systems with Limited Feedback