Alnwaimi, Ghassan, Arshad, Kamran and Moessner, Klaus (2011) Dynamic spectrum allocation algorithm with interference management in displaced networks. In: The 7th International Wireless Communications & Mobile Computing Conference. Institute of Electrical and Electronics Engineers, Inc., Piscataway, NJ, USA, pp. 941-946. ISBN 9781424495399 (doi:https://doi.org/10.1109/IWCMC.2011.5982528)

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Abstract

Dynamic spectrum allocation (DSA) has been cited as a promising mechanism for managing the radio spectrum for coexisting systems. The goal of the DSA scheme is to increase the performance of networks in the shared spectrum, by providing a more efficient way of utilisation. This work addresses analytically the impact of multi-cell, multi-operator interference on the overall spectrum when multiple operators co-exist and share a common pool of radio resources. We propose a centralised DSA scheme that is able to capture the interference level and interact dynamically to minimise interference and enhance spectrum utilisation while maintaining a satisfactory level of QoS. Furthermore, a concise system model and framework able to describe the interaction among different operators is presented. The DSA algorithm has been investigated for co-located and displaced cellular networks. The simulation results indicate that the proposed DSA algorithm significantly outperformed the fixed spectrum allocation (FSA) ensuring minimum level of interference in the system. The QoS of the overall system has been improved in the DSA compared to traditional FSA. Moreover, the proposed algorithm enhanced the spectrum utilization by 26% guaranteeing that all operators are given fair access to the shared spectrum.

Item Type:	Conference Proceedings
Title of Proceedings:	The 7th International Wireless Communications & Mobile Computing Conference
Additional Information:	[1] Acknowledgement (funding): The research leading to these results was derived partially from the European Community's Seventh Framework Programme (FP7) under Grant Agreement numbers 248454 (QoSMOS) and 257626 (ACROPOLIS). [2] This paper was first presented at the 7th International Wireless Communications & Mobile Computing Conference (IWCMC 2011) held from 4-8 July 2011 in Istanbul, Turkey. [3] ISBN: 9781424495399; 9781457795382
Uncontrolled Keywords:	radio spectrum management, radio frequency interference, DSA algorithm, QoS, cellular network, displaced network, dynamic spectrum allocation, fixed spectrum allocation, interference level, interference management, interference minimisation, multicell interference, multioperator interference, network performance, radio resource, radio spectrum management, spectrum utilisation, algorithm design and analysis, equations, heuristic algorithms, mathematical model, quality of service, resource management, co-existing operators, downlink UMTS
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:	12 Nov 2019 16:28
URI:	http://gala.gre.ac.uk/id/eprint/11302

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