Coordinated hybrid automatic repeat request

Behrooz Makki, Tommy Svensson, Thomas Eriksson, Mohamed-Slim Alouini

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

We develop a coordinated hybrid automatic repeat request (HARQ) approach. With the proposed scheme, if a user message is correctly decoded in the first HARQ rounds, its spectrum is allocated to other users, to improve the network outage probability and the users' fairness. The results, which are obtained for single- and multiple-antenna setups, demonstrate the efficiency of the proposed approach in different conditions. For instance, with a maximum of M retransmissions and single transmit/receive antennas, the diversity gain of a user increases from M to (J+1)(M-1)+1 where J is the number of users helping that user.
Original languageEnglish (US)
Pages (from-to)1975-1978
Number of pages4
JournalIEEE Communications Letters
Volume18
Issue number11
DOIs
StatePublished - Nov 2014

ASJC Scopus subject areas

  • Modeling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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