An interference-aware virtual clustering paradigm for resource management in cognitive femtocell networks
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Abstract
Femtocells represent a promising alternative solution for high quality wireless access in indoor scenarios where conventional cellular system coverage can be poor. They are randomly deployed by the end user, so only post-deployment network planning is possible. Furthermore, this uncoordinated deployment creates severe interference to co-located femtocells, especially in dense deployments. This paper presents a new architecture using a generalised virtual cluster femtocell (GVCF) paradigm, which groups together FAP into logical clusters. It guarantees severely interfering and overlapping femtocells are assigned to different clusters. Since each cluster operates on different band of frequencies, the corresponding virtual cluster controller only has to manage its own FAPs, so the overall system complexity is low. The performance of the GVCF algorithm is analysed from both a resource availability and cluster number perspective. Simulation results conclusively corroborate the superior performance of the GVCF model in interference mitigation, particularly in high density FAP scenarios.Citation
tTariq, F., Dooley, L.S., Poulton, A.S. (2014) 'An interference-aware virtual clustering paradigm for resource management in cognitive femtocell networks' Computers & Electrical Engineering 40 (2):587Publisher
ElsevierAdditional Links
http://linkinghub.elsevier.com/retrieve/pii/S0045790613000918Type
ArticleLanguage
enISSN
0045-7906ae974a485f413a2113503eed53cd6c53
10.1016/j.compeleceng.2013.04.006