Open AccessCapacity‐Based Channel Assignment Scheme in Multi‐radio Multi‐channel Wireless Mesh Networks
Author(s) -
Li Yangfan,
Wu Peng,
Liu Xinhua
Publication year - 2015
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2015.04.033
Subject(s) - wireless mesh network , computer science , computer network , throughput , channel (broadcasting) , shared mesh , mesh networking , channel allocation schemes , switched mesh , interference (communication) , order one network protocol , network topology , wireless network , router , topology (electrical circuits) , distributed computing , wireless , engineering , telecommunications , electrical engineering
The capacity of wireless mesh networks canbe greatly enhanced by equipping each mesh router withmultiple radios and by exploiting multiple channels to reducenetwork interference. It has been proved that an efficientchannel assignment scheme is critical to achieve theoptimal network throughput. This paper presents a centralizedchannel assignment scheme for multi‐radio multichannelwireless mesh networks. The scheme includesa spanner‐based topology control operation and a linkrankingchannel assignment algorithm. In the topologycontrol procedure, several links that cause intense interferenceare removed from the network without damage tothe basic network connectivity. The channel assignmentprocedure improves the network throughput via rankinglinks based on the principle of load balance. The simulationresults demonstrate that the proposed scheme outperformsthe compared centralized channel assignment approachin terms of network throughput. The experimentalresults also indicate that the effectiveness of the proposedscheme is even evident in the case of heavy input trafficload where the potential interference in the network is severe.