DocumentCode :
3601078
Title :
A Fast Rendezvous-Guarantee Channel Hopping Protocol for Cognitive Radio Networks
Author :
Chih-Min Chao ; Hsiang-Yuan Fu ; Li-Ren Zhang
Author_Institution :
Nat. Taiwan Ocean Univ., Keelung, Taiwan
Volume :
64
Issue :
12
fYear :
2015
Firstpage :
5804
Lastpage :
5816
Abstract :
In a cognitive radio network (CRN), two nodes have a rendezvous when they tune to the same channel simultaneously. Providing rendezvous guarantee between any pair of nodes is essential because a rendezvous is necessary for communication. Some existing works claim that rendezvous guarantee can be provided by using a dedicated common control channel to negotiate the channel being used. A serious problem of these mechanisms is that a globally available channel may not exist. Some channel hopping protocols try to provide a rendezvous guarantee without using a common control channel. However, these solutions may suffer from a poor number of rendezvous or uneven channel utilization. In this paper, we propose a novel distributed channel hopping protocol: Quorum and Latin square channel hopping (QLCH). The QLCH scheme efficiently provides rendezvous guarantee by utilizing the concept of quorum systems and Latin squares. The former is utilized to guarantee balanced rendezvous among nodes, whereas the latter is adopted to share the rendezvous among channels. QLCH efficiently provides fast rendezvous guarantee and can cooperate with other channel hopping protocols to enhance network throughput. Analytical and simulation results verify the improvement of QLCH. For example, when there are 30 flows using 11 channels in a CRN, the achieved time to rendezvous of QLCH is 9.84 times lower than that of the existing protocol SYNC-ETCH, whereas the achieved network throughput of QLCH is 362% higher than that of the existing protocol, i.e., Quorum-based channel hopping (L-QCH).
Keywords :
cognitive radio; protocols; wireless channels; Latin square concept; QLCH scheme; Quorum and Latin square channel hopping; cognitive radio network throughput enhancement; dedicated common control channel; fast rendezvous-guarantee channel hopping protocol; quorum system concept; Cognitive radio; Performance analysis; Protocols; Radio spectrum management; Receivers; Throughput; Channel Hopping; Channel hopping; Cognitive Radio Networks; Dynamic Spectrum Access; Latin Squares; Quorum Systems; Rendezvous Guarantee; cognitive radio networks (CRNs); dynamic spectrum access; latin squares; quorum systems; rendezvous guarantee;
fLanguage :
English
Journal_Title :
Vehicular Technology, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9545
Type :
jour
DOI :
10.1109/TVT.2014.2387377
Filename :
7001267
Link To Document :
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