Durowoju, Olasunkanmi, Arshad, Kamran and Moessner, Klaus (2011) Distributed power control for cognitive radio networks, based on incumbent outage information. In: 2011 IEEE International Conference on Communications (ICC) ICC 2011. Institute of Electrical and Electronic Engineers, Inc., Piscataway, NJ, USA. ISBN 978-1-61284-232-5 ISSN 1550-3607 (doi:10.1109/icc.2011.5962937)

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Abstract

The interference management problem in cognitive radio network is in this paper, tackled from the transmitter power control perspective so that transmissions by cognitive radios does not violate the interference level thresholds at incumbent users. We modify distributed power control algorithms to suit the cognitive radio framework by exploiting spectrum use and radio environment knowledge for incumbent user location estimation in worst-case scenario. Most literature employs worst-case analysis to guarantee robustness thereby trading off optimality. We therefore, propose a stochastic approach which allows the cognitive radio network, access the extra capacity based on incumbent user outage information with guarantees on interference protection to the incumbent user at all times. This paper therefore shows that the proposed distributed power control strategy is robust with the benefit of increased spectral efficiency compared to its worst case counterpart.

Item Type:	Conference Proceedings
Title of Proceedings:	2011 IEEE International Conference on Communications (ICC) ICC 2011
Additional Information:	[1] This paper was first presented at the 2011 IEEE International Conference on Communications (ICC 2011) held from 5–9 June 2011 in Kyoto, Japan. [2] ISBN: 9781612842325 (Print); 9781612842318 (Electronic).
Uncontrolled Keywords:	cognitive radio, distributed control, interference suppression, radio spectrum management, radio transmitters, stochastic processes, telecommunication network management, cognitive radio networks, distributed power control, incumbent outage information, interference management problem, interference protection, radio spectrum, robust control, stochastic approach, transmitter, user location estimation, interference, power control, receivers, sensors, signal to noise ratio, TV
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments:	School of Engineering School of Engineering > Mobile & Wireless Communications Research Laboratory
Related URLs:	Publisher Publisher Organisation
Last Modified:	14 Oct 2016 09:27
URI:	http://gala.gre.ac.uk/id/eprint/11299

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