Title
Hybrid Bs-Cooperative Power Management Scheme With Self-Organized Sleep Mode In Virtual Cell-Based Femto Networks
Abstract
A large-scale deployment of femtocell BSs (FBSs) causes substantial energy consumption. This paper proposes a hybrid BS-cooperative power management (HBCPM) scheme with self-organized sleep mode in virtual cell-based femto networks. Firstly, HBCPM builds a leader-member virtual cell framework, in which only one FBS is a FBS leader (FL) and others are FBS members (FMs). Then, the FL acts as an autonomous entity and is responsible for detecting active calls in the virtual cell coverage, while the FMs without active connections can entirely shut down pilot transmissions and the related processing all the time. So it is suited for self-organizing networks (SONs). Based on the proposed scheme, the state transition model is established by the semi-Markov stochastic process, and the analytic formulas of average cumulative delay and interference time as well as the energy consumption are derived. Meanwhile, three prominent-related schemes are also studied by the proposed model. With the practical long-term evolution (LTE) system parameters and three-dimensional femtocell network model, the numerical simulation and theoretical analysis match pretty well, and the tradeoff between the energy consumption and average cumulative delay is also manifested. Moreover, simulation results show that the proposed algorithm outperforms other three schemes in terms of average cumulative interference time and the energy consumption.
Year
DOI
Venue
2012
10.1155/2012/785418
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS
Field
DocType
Volume
Power management,Femto-,Femtocell,Computer science,Computer network,Stochastic process,Interference (wave propagation),Sleep mode,Energy consumption,Network model,Distributed computing
Journal
2012
Issue
ISSN
Citations 
null
1550-1477
2
PageRank 
References 
Authors
0.36
13
4
Name
Order
Citations
PageRank
Wei Zheng134230.46
Wei Li233228.56
Yuanbao Xie3111.72
Xiangming Wen461882.20