Journal Article10.1109/LCOMM.2016.2542132
Multiuser Decoding Scheme for $K$ -user Fading Multiple-Access Channel Based on Physical-Layer Network Coding
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TL;DR: Compared to the well-known iterative detection and decoding schemes, the proposed scheme achieves near interference-free bound performance without utilizing receiver iterations.
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Abstract: We propose a new practical multiuser decoding scheme based on physical-layer network coding (PNC) for a $K$ -user fading multiple-access channel. In the scheme, the users encode their messages with a same practical channel code, and the coded and modulated signals are transmitted simultaneously. The receiver first reconstructs $K$ linear functions of the $K$ users’ messages based on PNC. Then all messages are recovered by solving the $K$ linear equations. Compared to the well-known iterative detection and decoding schemes, we show by numerical results that the proposed scheme achieves near interference-free bound performance without utilizing receiver iterations.
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Hot topic: physical-layer network coding
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