Achievable rates for the fading three-hop half-duplex relay network using buffer-aided relaying

Hebatallah Shoukry, Nikola Zlatanov, Vahid Jamali, Robert Schober

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5 Citations (Scopus)

Abstract

The fading three-hop half-duplex relay network consists of a source, two half-duplex relays, and a destination connected in series where links are present only between adjacent nodes. We assume that the links are impaired by time-continuous fading and additive white Gaussian noise. For this network, we design new protocols based on buffer-aided relaying and derive their achievable average rates. We first develop a buffer-aided protocol which maximizes the average rate, but, as a side effect, introduces unbounded delay. Therefore, we also design a buffer-aided protocol which constrains the average delay, but at the expense of decrease of rate. Our numerical results show that the maximum average rate achieved with the developed buffer-aided protocol is larger than that of existing protocols for the considered network. Moreover, given a sufficiently large permissible average delay, the average rate achieved with the buffer-aided protocol with a delay constraint approaches the maximum average rate achieved without a delay constraint.

Original languageEnglish
Title of host publication2014 IEEE Global Communications Conference
EditorsJeffrey Andrews, Robert Heath
Place of PublicationPiscataway NJ USA
PublisherIEEE, Institute of Electrical and Electronics Engineers
Pages1716-1721
Number of pages6
ISBN (Print)9781479935116
DOIs
Publication statusPublished - 9 Feb 2014
Externally publishedYes
EventIEEE Global Telecommunications Conference 2014 - Austin, United States of America
Duration: 8 Dec 201412 Dec 2014
https://ieeexplore.ieee.org/xpl/conhome/7008954/proceeding (Proceedings)

Conference

ConferenceIEEE Global Telecommunications Conference 2014
Abbreviated titleIEEE GLOBECOM 2014
CountryUnited States of America
CityAustin
Period8/12/1412/12/14
Internet address

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