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Author

Lei Liu

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2026

Reusing a Single AWGN Code for Multiple Fading Streams via Random Multiplexing and Joint Detection-Decoding

Altering the quantity or structure of AWGN codes for multiple fading streams is often challenging due to the inflexibility and high cost of ASICs. To circumvent this bottleneck, this work introduces a framework to reuse a single standard AWGN code while ensuring reliable performance. Specifically, transmitter-side rand...

Wang-Tao Liao, Lei Liu, Yu-Hao Chi et al. · 0 citations
Open access 2026

Cooperative Distributed Detection for Oversampled Random Multiplexing Systems

Random multiplexing (RM) with approximate message passing (AMP)-type detectors effectively address doubly-selective fading in high-mobility scenarios while achieving maximum a posteriori (MAP) bit-error rate performance. To further improve RM performance, this paper considers oversampling at an integer multiple of the...

Jun Lu, Lei Liu, Tsung-Hui Chang et al. · 0 citations
Preprint Aug 2026

A Universal Random Precoding Framework for MIMO Systems

Simulation results on MIMO systems demonstrate that RP with CD-OAMP/MAMP achieves near-RM performance with much lower complexity, with additional benefits of flexible compression ratios for spectral efficiency.

Jiazhen Dong, Lei Liu, Xiao-Jun Yuan et al. · 0 citations

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