Joint CPFSK Modulation and Physical-Layer Network Coding in Two-Way Relay Channels

Nan SHA  Yuanyuan GAO  Xiaoxin YI  Wenlong LI  Weiwei YANG  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E97-A   No.4   pp.1021-1023
Publication Date: 2014/04/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E97.A.1021
Type of Manuscript: LETTER
Category: Communication Theory and Signals
physical-layer network coding,  continuous phase frequency shift keying,  modulation index,  maximum-likelihood sequence detection,  

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A joint continuous phase frequency shift keying (CPFSK) modulation and physical-layer network coding (PNC), i.e., CPFSK-PNC, is proposed for two-way relay channels (TWRCs). This letter discusses the signal detection of the CPFSK-PNC scheme with emphasis on the maximum-likelihood sequence detection (MLSD) algorithm for the relay receiver. The end-to-end error performance of the proposed CPFSK-PNC scheme is evaluated through simulations.