On buffer-aided relaying for the two-hop full duplex relay channel with self-interference

Mohsen Mohammadkhani Razlighi, Nikola Zlatanov

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

2 Citations (Scopus)


In this paper, we investigate the fading two-hop full-duplex (FD) relay channel with self- interference, which is comprised of a source, an FD relay impaired by self-interference, and a destination, where a direct source-destination link does not exist. For this channel, we propose two buffer-aided relaying schemes with adaptive reception-transmission at the FD relay for the cases when the source and the relay both perform adaptive-rate and fixed-rate transmission, respectively. The proposed buffer-aided relaying schemes enable the FD relay to adaptively select to either receive, transmit, or simultaneously receive and transmit in a given time slot based on the qualities of the receiving, transmitting, and self-interference channels; a degree-of-freedom unavailable without buffer-aided relaying. Our numerical results show that significant performance gains are achieved using the proposed buffer-aided relaying schemes compared to conventional FD relaying, where the FD relay is forced to always simultaneously receive and transmit, and to buffer-aided half-duplex relaying, where the half-duplex relay cannot simultaneously receive and transmit. The main conclusion of this work is that FD relaying systems without buffer-aided relaying miss-out on significant performance gains.

Original languageEnglish
Title of host publication2017 IEEE Global Communications Conference (GLOBECOM) - Proceedings
EditorsYing-Chang Liang, Teng Joon Lim, Chengshan Xiao
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages7
ISBN (Electronic)9781509050192, 9781509050185
ISBN (Print)9781509050208
Publication statusPublished - 2017
EventIEEE Global Telecommunications Conference 2017 - Singapore, Singapore
Duration: 4 Dec 20178 Dec 2017
https://ieeexplore.ieee.org/xpl/conhome/8253768/proceeding (Proceedings)


ConferenceIEEE Global Telecommunications Conference 2017
Abbreviated titleIEEE GLOBECOM 2017
Internet address

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