Zero-forcing precoder: a special constructive interference precoder for PSK signals
Ding, Yanwu Pham, Khanh D.
Ding, Yanwu
Pham, Khanh D.
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2020-03-30
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Conference paper
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Keywords
Block-level,Constructive interference,Precoder,QoS,Symbol-level,Zero-forcing (ZF)
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Citation
Y. Ding and K. Pham, "Zero-forcing Precoder: A Special Constructive Interference Precoder for PSK Signals," 2019 53rd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, USA, 2019, pp. 717-720
Abstract
Recently, constructive interference precoders have been considered for downlink communication systems to utilize the multiuser interference constructively. Such precoders are normally obtained by solving constrained optimization problems at each symbol period. We demonstrate that there exists an analytic solution to a constructive interference precoder under the constraint of QoS for phase-shift keying (PSK) symbols. In this case, the computational cost is saved for the precoder design without solving the optimization problem.
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IEEE
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53rd Asilomar Conference on Signals, Systems, and Computers;2019
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1058-6393