Héliot, F., Imran, M. A. and Tafazolli, R. (2013) Energy-Efficient Coordinated Resource Allocation for the Downlink of Cellular Systems. In: 2013 Future Network Mobile Summit, Lisbon, Portugal, 03-05 Jul 2013, ISBN 9781905824373
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Publisher's URL: http://ieeexplore.ieee.org/document/6633533/
Abstract
Energy efficiency (EE) is growing in importance as a system design criterion for power-unlimited system such as cellular systems. Equally, resource allocation is a well-known method for improving the performance of the latter. In this paper, we propose two novel coordinated resource allocation strategies for jointly optimizing the resources of three sectors/cells in an energy-efficient manner in the downlink of multi-cell/sector systems. Given that this optimization problem is non-convex, it can only be optimally solved using high complexity exhaustive search. Here, we propose two practical approaches for allocating resources in a low complexity manner. We then compare our novel approaches against other existing non-coordinated and coordinated ones in order to highlight their benefit. Our results indicate that our first approach performs the best in terms of EE but with a low level of fairness in the user rate allocation; whereas our second approach provides a good trade-off between EE and fairness. Overall, base station selection, i.e. allowing only one sector to transmit at a time, is a very energy-efficient approach when the sleeping power is considered in the base station power model.
Item Type: | Conference Proceedings |
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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: | 9781905824373 |
Published Online: | 17 October 2013 |
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