Power and Location Optimization for Full-Duplex Decode-and-Forward Relaying

Bo Yu, Liuqing Yang, Xiang Cheng, Rui Cao

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


Full-duplex transmission is a promising technique to enhance the capacity of relay communications. In this paper, we investigate the power and location optimization for full-duplex decode-and-forward (DF) relaying systems. The outage probability is adopted as the optimization criterion and a two-dimensional (2D) optimization problem is formulated for systems with and without the direct source-destination link. Analytical and numerical results are provided to demonstrate advantages of the power and location optimization. More interestingly, the effect of residual self-interference (RSI) introduced by full-duplex transmission is investigated in terms of the optimal power allocation and relay location deployment and the outage probability performance improvement. Furthermore, we show that the minimal outage probability can be achieved via joint power-location optimization. The effect of power optimization on the outage performance is also compared between full-duplex and half-duplex relaying.

Original languageEnglish (US)
Article number7283560
Pages (from-to)4743-4753
Number of pages11
JournalIEEE Transactions on Communications
Issue number12
StatePublished - Dec 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 IEEE.


  • Decode-and-Forward
  • Full-duplex relaying
  • Location optimization
  • outage probability
  • power optimization


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