Centralized channel assignment and routing algorithms for multi-channel wireless mesh networks
ACM SIGMOBILE Mobile Computing and Communications Review
Proceedings of the 11th annual international conference on Mobile computing and networking
Partially overlapped channels not considered harmful
SIGMETRICS '06/Performance '06 Proceedings of the joint international conference on Measurement and modeling of computer systems
Exploiting partially overlapping channels in wireless networks: turning a peril into an advantage
IMC '05 Proceedings of the 5th ACM SIGCOMM conference on Internet Measurement
Superimposed code based channel assignment in multi-radio multi-channel wireless mesh networks
Proceedings of the 13th annual ACM international conference on Mobile computing and networking
Frequency assignments in IEEE 802.11 WLANs with efficient spectrum sharing
Wireless Communications & Mobile Computing
Virtual access network embedding in wireless mesh networks
Ad Hoc Networks
WASA'13 Proceedings of the 8th international conference on Wireless Algorithms, Systems, and Applications
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Existing channel assignment algorithms designed for multi-radio multi-channel wireless mesh networks (MRMC-WMN) mainly deal with orthogonal or nonoverlapped channels. But in reality, the limited availability of orthogonal channel is a major issue where the network is very dense in terms of inter-nodal distances. On the other hand, partially overlapped channels (POC) are currently considered as a great potential for increasing the number of simultaneous transmissions and eventually upgrading the network capacity; especially in case of MRMC-WMN. In this paper, we address the limited orthogonal channel problem by exploring the usable POCs. The key technique lies in the fact that the interference between adjacent channels has to be considered intelligently in order to increase the overall capacity. Our contributions include a new interference model I-Matrix that helps selecting channels with less interference and a POC-based channel assignment algorithm. We evaluate the performance of our POC based algorithm in terms of capacity by comparing with the one using only orthogonal channels. Our results show capacity improvement as the increased link assignments at an average of more than 15 percent.