Distributed resource allocation for multi-user multi-relay AF cooperative communication

Hanan Al-Tous, Imad Barhumi

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

4 Citations (Scopus)

Abstract

Joint power and bandwidth allocation with relay selection is investigated for multi source multi relay amplify and forward cooperative communication system. The problem at hands is mixed integer optimization problem, which is computationally intensive to solve using exhaustive search. In this sense, particle swarm optimization (PSO) is used to solve the formulated problem without the need for the convexity and differentiability of the objective function, nor the relaxation of the integer variables, which are associated with conventional optimization techniques. Joint power and bandwidth allocation is proposed based on maximizing the sum rate of all users. The data rate achieved using AF is not a jointly-concave function in the power and bandwidth profiles. Frequency division multiplexing (FDM) is used based on the optimal power and bandwidth allocation; part of the data is transmitted using the relay, and the other part is transmitted using the direct link. A distributed implementation of the resource allocation problem is proposed based on the formulated fitness function. Numerical results demonstrate the effectiveness of the proposed allocation method.

Original languageEnglish
Title of host publication2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings
EditorsBeata J. Wysocki, Tadeusz A. Wysocki
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479952557
DOIs
Publication statusPublished - Jan 23 2014
Event8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Gold Coast, Australia
Duration: Dec 15 2014Dec 17 2014

Publication series

Name2014, 8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014 - Proceedings

Other

Other8th International Conference on Signal Processing and Communication Systems, ICSPCS 2014
Country/TerritoryAustralia
CityGold Coast
Period12/15/1412/17/14

Keywords

  • AF Cooperative Communications
  • Maximizing the Sum Rate
  • Particle Swarm Optimization
  • Relay Selection
  • Resource Allocation

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Electrical and Electronic Engineering

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