Semi-Distributed Resource Allocation for Dense Small Cell Networks

Hong LIU  Yang YANG  Xiumei YANG  Zhengmin ZHANG  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E98-A    No.5    pp.1140-1143
Publication Date: 2015/05/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E98.A.1140
Type of Manuscript: LETTER
Category: Mobile Information Network and Personal Communications
small cell networks,  MINLP,  semi-distributed resource allocation,  bisection-search power allocation,  

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Small cell networks have been promoted as an enabling solution to enhance indoor coverage and improve spectral efficiency. Users usually deploy small cells on-demand and pay no attention to global profile in residential areas or offices. The reduction of cell radius leads to dense deployment which brings intractable computation complexity for resource allocation. In this paper, we develop a semi-distributed resource allocation algorithm by dividing small cell networks into clusters with limited inter-cluster interference and selecting a reference cluster for interference estimation to reduce the coordination degree. Numerical results show that the proposed algorithm can maintain similar system performance while having low complexity and reduced information exchange overheads.