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Electronics and Telecommunications Research Institute (한국전자통신연구원)
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Denoising Mapping Utilizing Constellation Symmetry in Denoise-and-Forward Two-Way Relay Channels

  • Zheng, Jianping (State Key Laboratory of Integrated Services Networks, Xidian University) ;
  • Bai, Baoming (State Key Laboratory of Integrated Services Networks, Xidian University) ;
  • Li, Ying (State Key Laboratory of Integrated Services Networks, Xidian University)
  • Received : 2011.12.02
  • Accepted : 2012.02.16
  • Published : 2012.08.30
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Abstract

The denoising mapping with the closest-neighbor clustering (CNC) method in denoise-and-forward two-way relay channels is studied. Specifically, the symmetry of the constellations in source terminals A and B is utilized to reduce the complexity of the CNC method. The specific case considered first to illustrate how the constellation symmetry works in the CNC method is the quadrature phase-shift keying constellation in A and B and the single-antenna deployment in all terminals. This case study shows that an enormous complexity reduction can be achieved. Next, the result is extended to multiple-antenna scenarios and square quadrature amplitude modulations.

Keywords

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Cited by

  1. Two-Way Amplify–Forward Relaying Using Frequency-Domain Oversampling on Frequency-Selective Fading Channels vol.63, pp.4, 2014, https://doi.org/10.1109/tvt.2013.2287339