XOR physical layer network coding with non-linear precoding for quadrature amplitude modulations in bi-directional MIMO relay systems

Research output: Contribution to journalArticle

Abstract

This paper proposes an XOR physical layer network coding (XOR-PLNC) with non-linear precoding for quadrature amplitude modulations (QAMs) in bi-directional MIMO relay systems. The proposed XOR-PLNC applies power loading in order to improve the transmission performance. The proposed XOR-PLNC introduces a modulus adapted to channel gains. Moreover, the modulus is further reduced in cooperation with modulo operation which the non-linear precoding employs for improvement of transmission power efficiency. The use of the reduced modulus improves the energy efficiency of the signal transmission, which improves the transmission performance in the proposed XOR-PLNC. The performance is evaluated by computer simulations in bi-directional MIMO relay channels with 16QAM to 1024QAM.

Original languageEnglish
Pages (from-to)2073-2081
Number of pages9
JournalIEICE Transactions on Communications
VolumeE102B
Issue number10
DOIs
Publication statusPublished - Jan 1 2019

Keywords

  • Network coding
  • Non-linear precoding
  • Power loading

ASJC Scopus subject areas

  • Software
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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