Energy Efficient Two-tier Network-Coded Relaying Systems Considering Processing Energy Costs

Nan QI, Ming Xiao, Theodoros Tsiftsis, Rugui Yao, shahid mumtaz

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In this paper, a two-tier network coding (TNC) scheme is proposed for the multi-user multi-relay transmission scenarios. Specifically, TNC is conducted at each individual relay, where two groups of source messages are combined into one network codeword that is forwarded to dual destinations. Finally, two groups of source messages are jointly recovered from different network codewords at the destinations. Both analytical and simulation results demonstrate that, the proposed scheme outperforms the current state of art in terms of the energy efficiency (EE). In addition, the impacts of multiple parameters, including the number of users, SNR and relay locations on the average EE have been demonstrated, which provide valuable insights for the system designs of future wireless networks.

Original languageEnglish
JournalIEEE Transactions on Vehicular Technology
DOIs
Publication statusAccepted/In press - Jan 1 2018

Keywords

  • Decoding
  • Energy efficiency
  • Indexes
  • Network coding
  • outage probability
  • Probability
  • relay forwarding
  • Relays
  • Signal to noise ratio
  • Silicon
  • two-tier network coding

ASJC Scopus subject areas

  • Automotive Engineering
  • Aerospace Engineering
  • Applied Mathematics
  • Electrical and Electronic Engineering

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