Energy-Efficient Resource Allocation for Orthogonal Multi-Antenna Multi-Carrier Channel

Héliot, F., Imran, M. A. and Tafazolli, R. (2013) Energy-Efficient Resource Allocation for Orthogonal Multi-Antenna Multi-Carrier Channel. In: 2013 IEEE Online Conference on Green Communications, 29-31 Oct 2013, pp. 109-114. ISBN 9781479903542 (doi: 10.1109/OnlineGreenCom.2013.6731037)

Abstract

Energy efficiency (EE) is growing in importance as a key performance indicator for designing the next generation of communication systems. Equally, resource allocation is an effective approach for improving the performance of communication systems. In this paper, we propose a low-complexity energy-efficient resource allocation method for the orthogonal multi-antenna multi-carrier channel. We derive explicit formulations of the optimal rate and energy-per-bit consumption for the per-antenna transmit power constrained and per-antenna rate constrained EE optimization problems as well as provide a low-complexity algorithm for optimally allocating resources over the orthogonal multi-antenna multi-carrier channel. We then compare our approach against a classic optimization tool in terms of energy efficiency as well as complexity, and results indicate the optimality and low-complexity of our approach. Comparing EE-optimal with spectral efficiency and power optimal allocation approaches over the orthogonal multi-antenna multi-carrier channel indicates that the former provides a good trade-off between power consumption and sum-rate performances.

• 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: 9781479903542