Symbol Error Rate Analysis for M-QAM Modulated Physical-Layer Network Coding with Phase Errors

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Provided by: Northeastern University
Topic: Networking
Format: PDF
Recent theoretical studies of Physical-layer Network Coding (PNC) show much interest on high-level modulation, such as M-ary Quadrature Amplitude Modulation (M-QAM), and most related works are based on the assumption of phase synchrony. The possible presence of synchronization error and channel estimation error highlight the demand of analyzing the Symbol Error Rate (SER) performance of PNC under different phase errors. Assuming synchronization and a general constellation mapping method, which maps the superposed signal into a set of M coded symbols, in this paper, the authors analytically derive the SER for M-QAM modulated PNC under different phase errors.
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