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The Performance of Physical-Layer Network Coding in Asymmetric Rayleigh Fading Two-Way Relay Channels

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Abstract

Up to now, most of the researches about physical-layer network coding (PNC) are based on symmetric two-way relay channels. In this paper, we mainly study PNC in asymmetric two-way relay Rayleigh fading channels and classify the systems into five asymmetric cases. So as to describe the asymmetric cases, we introduce the asymmetric factors. We simulate the bit error rate (BER) performance of PNC in both symmetric and asymmetric cases with asymmetric factors fixed. After that we analyze the BER performance of PNC with one of the asymmetric factors is variable when two channels are relatively unreliable. Finally, we give the conditions that one kind of asymmetric scenario transforming to other kind. Also, in the matter of anti-noise performance, uplink asymmetry has worst performance and the phase asymmetry-downlink is the best case.

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Acknowledgments

This work is supported in part by National Natural Science Foundation of China (No.61401118, No.61371100, No.61501139 and No.61671184), Natural Science Foundation of Shandong Province (No.ZR2014FP016), the Foundation of Science and Technology on Communication Networks Key Laboratory, the Fundamental Research Funds for the Central Universities (No.HIT.NSRIF.2016100 and 201720).

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Authors and Affiliations

  1. Harbin Institute of Technology (Weihai), Weihai, China

    Bo Li, Hongjuan Yang, Gongliang Liu & Xiyuan Peng

  2. Science and Technology on Communication Networks Key Laboratory, Shijiazhuang, China

    Bo Li

  3. Harbin Institute of Technology, Harbin, China

    Xiyuan Peng

Authors
  1. Bo Li
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  2. Hongjuan Yang
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  3. Gongliang Liu
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  4. Xiyuan Peng
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Correspondence to Gongliang Liu.

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Li, B., Yang, H., Liu, G. et al. The Performance of Physical-Layer Network Coding in Asymmetric Rayleigh Fading Two-Way Relay Channels. Mobile Netw Appl 23, 301–307 (2018). https://doi.org/10.1007/s11036-017-0945-3

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  • DOI: https://doi.org/10.1007/s11036-017-0945-3

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