Near-Optimal Energy-Efficient Joint Resource Allocation for Multi-Hop MIMO-AF Systems

Héliot, F., Imran, M. A. and Tafazolli, R. (2013) Near-Optimal Energy-Efficient Joint Resource Allocation for Multi-Hop MIMO-AF Systems. In: 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), London, UK, 08-11 Sep 2013, pp. 943-948. ISBN 9781467362351 (doi:10.1109/PIMRC.2013.6666273)

Héliot, F., Imran, M. A. and Tafazolli, R. (2013) Near-Optimal Energy-Efficient Joint Resource Allocation for Multi-Hop MIMO-AF Systems. In: 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC), London, UK, 08-11 Sep 2013, pp. 943-948. ISBN 9781467362351 (doi:10.1109/PIMRC.2013.6666273)

[img]
Preview
Text
136770.pdf - Accepted Version

420kB

Abstract

Energy efficiency (EE) is becoming an important performance indicator for ensuring both the economical and environmental sustainability of the next generation of communication networks. Equally, cooperative communication is an effective way of improving communication system performances. In this paper, we propose a near-optimal energy-efficient joint resource allocation algorithm for multi-hop multiple-input-multiple-output (MIMO) amplify-and-forward (AF) systems. We first show how to simplify the multivariate unconstrained EE-based problem, based on the fact that this problem has a unique optimal solution, and then solve it by means of a low-complexity algorithm. We compare our approach with classic optimization tools in terms of energy efficiency as well as complexity, and results indicate the near-optimality and low-complexity of our approach. As an application, we use our approach to compare the EE of multi-hop MIMO-AF with MIMO systems and our results show that the former outperforms the latter mainly when the direct link quality is poor.

Item Type:Conference Proceedings
Additional Information:The research leading to these results has received funding from the European Commission’s Seventh Framework Programme FP7/2007-2013 under grant agreement n◦318273- project LEXNET.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad
Authors: Héliot, F., Imran, M. A., and Tafazolli, R.
College/School:College of Science and Engineering > School of Engineering
ISBN:9781467362351
Published Online:11 December 2013
Copyright Holders:Copyright © 2013 IEEE
First Published:First published in 2013 IEEE 24th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC): 943-948
Publisher Policy:Reproduced in accordance with the publisher copyright policy

University Staff: Request a correction | Enlighten Editors: Update this record