Abstract | ||
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Small cells have recently emerged as an effective technology in meeting the increased demand for cellular network capacity. Cloud radio access networks (C-RANs), composed of baseband units (BBU), remote radio heads (RRH) and the optical transport network, have been introduced to harness the capacity benefits of small cells at reduced capital and operational expenses. However, dense deployment of RRHs causes severer interference among them and thus lower the spectrum efficiency. In this paper, we investigate the problem of cooperative interference management among RRHs in C-RAN based small cell networks, which are also referred to as cloud small cell networks (C-SCNs). A coalitional game in simplified-partition form, where RRHs cooperate by forming coalitions to eliminate the intra-coalition interference, is formulated. To analyze the formation of coalitions, a novel concept defection order is introduced, based on which the necessary conditions for RRHs to cooperate is derived, and a coalition formation algorithm called SOCFA is proposed as well. Simulation results show that our proposed algorithm yields a significant advantage reaching up to 28% relative to the non-cooperative scheme, in terms of aggregate system utility. |
Year | DOI | Venue |
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2014 | 10.1109/CHINACOM.2014.7054340 | ChinaCom |
Keywords | Field | DocType |
cellular radio,cloud computing,cooperative communication,game theory,interference suppression,radio access networks,bbu,c-rans,c-scns,rrh,socfa coalition formation algorithm,aggregate system utility,baseband units,cellular network capacity,cloud radio access networks,cloud small cell networks,coalitional game based interference management,concept defection order,cooperative interference management,intra-coalition interference elimination,necessary conditions,noncooperative scheme,optical transport network,remote radio heads,spectrum efficiency,wireless communication,games,interference,simulation,time division multiple access | Radio resource management,Optical Transport Network,Wireless,Computer science,Computer network,Small cell,Spectral efficiency,Cellular network,Time division multiple access,Cloud computing | Conference |
Citations | PageRank | References |
0 | 0.34 | 7 |
Authors | ||
4 |
Name | Order | Citations | PageRank |
---|---|---|---|
Chengdan Sun | 1 | 0 | 0.34 |
Mugen Peng | 2 | 2779 | 200.37 |
Biling Zhang | 3 | 0 | 0.68 |
Yaohua Sun | 4 | 153 | 9.72 |