Buffer-aided relaying with discrete transmission rates

Wayan Wicke, Nikola Zlatanov, Vahid Jamali, Robert Schober

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

2 Citations (Scopus)


We consider a slow fading three-node network consisting of a source, a half-duplex decode-and-forward relay, and a destination, where a direct link between the source and the destination does not exist. We assume that the half-duplex relay is equipped with a buffer and employs in each time slot adaptive scheduling of reception and transmission based on the instantaneous qualities of the source-to-relay and relay-to-destination links. Furthermore, as a practical constraint, we assume that in each time slot, the source and the relay can select transmission rates only from a discrete and finite set of available transmission rates. For this network, we design the optimal scheduling of reception and transmission at the relay and the optimal selection of the transmission rates at the source and the relay such that the throughput is maximized. Our numerical results show that the maximum throughput achieved with the proposed buffer-aided protocol for discrete transmission rates is significantly larger than the throughput achieved with conventional relaying protocols with continuous transmission rates.

Original languageEnglish
Title of host publication2015 IEEE 14th Canadian Workshop on Information Theory (CWIT 2015) 
EditorsJulian Cheng, Ha Nguyen, Xianbin Wang
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781479965601
ISBN (Print)9781479965595
Publication statusPublished - 10 Sept 2015
Externally publishedYes
EventCanadian Workshop on Information Theory 2015 - St. John's Newfoundland, Canada
Duration: 6 Jul 20159 Jul 2015
Conference number: 14th


ConferenceCanadian Workshop on Information Theory 2015
Abbreviated titleCWIT 2015
CitySt. John's Newfoundland
Internet address

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