Resource allocation with interference mitigation in femtocellular networks

Authors:
Najah Abu Ali;Mahmoud Ouda;Hossam Hassanein;Osama Kubbar
Affiliations:
Faculty of IT, United Arab Emirates University, Al-Ain, United Arab Emirates;School of Computing, Queen's University, Kingston, Canada;School of Computing, Queen's University, Kingston, Canada;Qatar Mobility Innovation Center, Qatar University, Doha, Qatar
Venue:
Wireless Communications & Mobile Computing
Year:
2012

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Abstract

The introduction of femtocells enabled high data rates and better indoor coverage without the need for expanding or increasing the density of cellular networks deployment or upgrading the cellular network infrastructure. Despite this direct advantage, the introduction of femtocells challenges traditional interference mechanisms because of the ad hoc and dense nature of femtocell deployment. In this paper, we propose an optimal downlink frequency assignment scheme. The proposed algorithm is modeled as a transportation problem to optimally allocate frequency subcarriers with the objective of maximizing the system capacity. The scheme can be used as a benchmark for assessing the suitability of interference mitigation schemes in femtocellular networks.Copyright © 2012 John Wiley & Sons, Ltd.