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Computationally Efficient Constructive Interference Precoding for PSK Modulations Under Per-Antenna Power Constraint
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DOI：10.1109/TVT.2020.3003458.png)
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This correspondence investigates computationally efficient constructive interference (CI)-based precoding for phase-shift-keying (PSK)-modulated multiuser multiple-input-single-output (MISO) systems. In contrast to the existing CI-based precoders which are designed exclusively under the sum power constraint, we focus on the design problem under the more challenging but realistic per-antenna power constraint (PAPC). We showed that both the strict and non-strict phase rotation CI-based precoders under PAPC can be efficiently realized under a unified new framework. Simulation results showed that the proposed CI-based precoders admit substantially lower complexity while achieving essentially the same error rate performance as their optimization-based counterparts.
Keyword:
Precoding
Interference
Phase shift keying
Optimization
Convex functions
Complexity theory
Antennas
Constructive interference
precoding
ADMM
projected gradient
per-antenna power constraint
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7.1
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1.8W
被引数:
6.6W
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引用论文
Interference Exploitation Precoding Made Practical: Optimal Closed-Form Solutions for PSK Modulations干扰利用预编码变得实用: PSK调制的最佳封闭形式解决方案
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