Outage Performance Analysis of Two-Way Full-Duplex DF Relaying Networks with Beamforming

Ji Ho Lee, Sung Sik Nam, Young Chai Ko

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


In this paper, we investigate the system outage performance of full-duplex (FD) two-way relay networks where all nodes are equipped with FD multiple-input multiple-output (MIMO) capability and two sources exchange information via decode-And-forward (DF) relay protocol in two consecutive time slots. In order to completely separate the desired signal and interference, we consider a finite size of buffer at the relay. We propose zero-forcing based beamforming schemes for two different cases of the buffer-Aided relay and non-buffer-Aided relay. We derive exact closed-form expression and lower bound of the outage probability for those two-way relay system, respectively. Numerical results show that the proposed buffer-Aided relay scheme significantly improves the system performance over the conventional scheme in terms of outage probability.

Original languageEnglish
Article number9110768
Pages (from-to)8753-8763
Number of pages11
JournalIEEE Transactions on Vehicular Technology
Issue number8
Publication statusPublished - 2020 Aug


  • MIMO
  • Two-way relay
  • decode and forward
  • full-duplex
  • outage probability

ASJC Scopus subject areas

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


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