Title
Cloud empowered Cognitive Inter-cell Interference Coordination for small cellular networks
Abstract
In this article, we present a Cloud empowered Cognitive Inter-Cell Interference Coordination (C2-ICIC) scheme for small cellular networks. The scheme leverages a recently proposed cloud radio access network (C-RAN) architecture for enabling intra-tier coordination and relaxes the need for inter-tier coordination by adopting the phantom cell architecture. Employing tools from stochastic geometry, we characterize the downlink success probability for a Mobile User (MU) scheduled under the proposed coordination scheme. It is shown that, compared to un-coordinated scheduling, significant performance gains can be realized in ultra dense small cell deployment scenarios under the proposed C2-ICIC scheme. This is attributed to the robust interference protection provisioned by the scheme. It is demonstrated that the gains are particularly large for the users experiencing a weak received signal strength. Indeed, for these users, the received signal-to-interference ratio (SIR) can only be improved by reducing the experienced aggregate co-channel interference. The closed-form expression derived for the downlink success probability is employed to quantify the link level throughput under the proposed scheme. Finally, we briefly explore the design space of the C2-ICIC scheme in terms of interference protection cap which determines both the downlink throughput of the MU scheduled in the coordination mode and the transmission opportunity for the co-channel small cells.
Year
DOI
Venue
2015
10.1109/ICCW.2015.7247511
Communication Workshop
Keywords
Field
DocType
Internet,cellular radio,cloud computing,cochannel interference,cognitive radio,stochastic processes,C-RAN,cloud empowered cognitive intercell interference coordination,cloud radio access network architecture,cochannel interference,phantom cell architecture,received signal-to-interference ratio,robust interference protection,small cellular networks,Poisson point process,cloud cooperation,cognitive interference,interference coordination,small cells,stochastic geometry
Scheduling (computing),Computer science,Link level,Computer network,Cellular network,Interference (wave propagation),Throughput,Radio access network,Telecommunications link,Cloud computing
Conference
ISSN
Citations 
PageRank 
2164-7038
1
0.36
References 
Authors
14
4
Name
Order
Citations
PageRank
Syed Ali Raza Zaidi1454.77
Desmond C. McLernon216115.18
Mounir Ghogho31072113.80
Muhammad Ali Imran42920278.27