Joint optimal relay selection and power allocation in multicast cooperative networks

Mohammad Faisal Uddin, Chadi Assi, Ali Ghrayeb

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

1 Citation (Scopus)

Abstract

We investigate the joint problem of relay selection and optimal sharing of relay power in wireless cellular networks with multicast traffic. We use two different performance metrics to maximize the network performance. We first present a mixed Boolean-convex optimization model to maximize the overall network capacity and solve this combinatorial problem optimally using branch and bound technique. We then show that obtaining the optimal solution is computationally not feasible for large network sizes and, unlike the case of unicast traffic, a water filling method does not yield near optimal solutions in multicast scenarios. We thus adopt an algorithm based on sequential fixing which substantially reduces the computation time and achieves near optimal solutions. In addition, we present a mixed integer linear programming model to maximize the capacity of the minimum capacity link and show that the model is very efficient to reach the optimal solutions.

Original languageEnglish
Title of host publication2012 IEEE International Conference on Communications, ICC 2012
Pages5086-5091
Number of pages6
DOIs
Publication statusPublished - 1 Dec 2012
Event2012 IEEE International Conference on Communications, ICC 2012 - Ottawa, ON, Canada
Duration: 10 Jun 201215 Jun 2012

Publication series

NameIEEE International Conference on Communications
ISSN (Print)1550-3607

Other

Other2012 IEEE International Conference on Communications, ICC 2012
CountryCanada
CityOttawa, ON
Period10/6/1215/6/12

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

Uddin, M. F., Assi, C., & Ghrayeb, A. (2012). Joint optimal relay selection and power allocation in multicast cooperative networks. In 2012 IEEE International Conference on Communications, ICC 2012 (pp. 5086-5091). [6364407] (IEEE International Conference on Communications). https://doi.org/10.1109/ICC.2012.6364407