Paper Info
Title
Downlink Channel Allocation Scheme deploying Cooperative Channel Monitoring for Cognitive Cellular-FemtocellNetworks
Abstract
Cognitive cellular-femtocell networks are considered as future mobile communication networks which can satisfy challenging requirements of current mobile communications including high user density, quality of service (QoS) provision and efficient spectrum utilization. In this paper, we present a novel downlink channel allocation scheme which allocates downlink channels to new connection requests of real-time connections in cognitive cellular-femtocell networks. In the scheme, a cognitive femtocell access point (CFAP) cooperates with other 2-hop neighbor CFAPs to establish a cooperative channel monitoring group for monitoring and exchanging information of channel occupancy among the CFAPs belonging to the group. Upon receiving a new connection request from a femtocell user (FU), the serving CFAP uses the information of channel occupancy updated from neighboring CFAPs and interference level of channels to allocate a channel, which is expected to cause the minimum interference to macro users (MUs) of the covering macro base station (MBS). Simulation results prove that the proposed scheme can provide better performance than the conventional downlink channel allocation scheme which does not exploit the cooperation of CFAPs in channel monitoring.
Year
DOI
Venue
2015
10.4304/jnw.10.6.338-343
JOURNAL OF NETWORKS
Keywords
Field
DocType
Cognitive radio,femtocell,resource management
Resource management,Femtocell,Computer science,Computer network,Communication channel,Quality of service,Interference (wave propagation),Macro,Mobile telephony,Cognitive radio,Distributed computing
Journal
Volume
Issue
ISSN
10
6
1796-2056
Citations 
PageRank 
References 
0
0.34
9
Authors
4
Name
Order
Citations
PageRank
Van-Toan Nguyen100.34
Kien Nguyen242964.26
Hoang Nam Nguyen3357.98
Keattisak Sripimanwat434.80