Title
A dynamic channel assignment strategy based on cross-layer design for wireless mesh networks
Abstract
In wireless mesh networks (WMNs), if nonoverlapped channels or partially overlapped channels are used properly, the throughput can be improved drastically. However, the number of nonoverlapped channels is limited in wireless communication standards. An effective channel assignment algorithm for a WMN is necessary to increase the utilization rate of space and nonoverlapped channels. Static channel assignment algorithms can improve network throughput, but their accuracies are not satisfactory in common scenarios. Dynamic channel assignment algorithms can allocate channels according to the status of adjacent links in WMNs. A dynamic channel assignment algorithm needs cross-layer design to get the information of routing. A routing-information-aware channel assignment algorithm based on a cross-layer design is proposed, which is named R-CA. The proposed method can dynamically allocate channels for wireless nodes when they need communication and release channels after data transmission. In R-CA, limited channel resources can be used efficiently by more wireless nodes, and hence the communication throughput can be improved. Simulation results show that our channel allocation strategy can effectively ensure and enhance the network throughput and packet delivery rate in WMNs. Copyright © 2012 John Wiley & Sons, Ltd.
Year
DOI
Venue
2012
10.1002/dac.2385
Int. J. Communication Systems
Keywords
Field
DocType
limited channel resource,wireless node,nonoverlapped channel,channel allocation strategy,release channel,effective channel assignment algorithm,cross-layer design,overlapped channel,dynamic channel assignment strategy,wireless mesh network,network throughput,dynamic channel assignment algorithm,routing
Cross layer design,Wireless,Data transmission,Computer science,Network packet,Communication channel,Computer network,Wireless mesh network,Throughput,Channel allocation schemes,Distributed computing
Journal
Volume
Issue
ISSN
25
9
1074-5351
Citations 
PageRank 
References 
13
0.67
18
Authors
5
Name
Order
Citations
PageRank
Weifeng Sun14810.67
Tong Fu2201.89
Feng Xia32013153.69
Zhenquan Qin47614.43
Rong Cong5161.07