Internet Traffic based Channel Selection in Multi-Radio Multi-Channel Wireless Mesh Networks

Abstract

Wireless Mesh Networks(WMNs) are the outstanding technology to facilitate wireless broadband Internet access to users. Routers in WMN have multiple radio interfaces to which multiple orthogonal/partially overlapping channels are assigned to improve the capacity of WMN. This paper is focused on channel selection problem in WMN since proper channel selection to radio interfaces of mesh router increases the performance of WMN. To access the Internet through WMN, the users have to associate with one of the mesh routers. Since most of the Internet Servers are still in wired networks, the major dominant traffic of Internet users is in downlink direction i.e. from the gateway of WMN to user. This paper proposes a new method of channel selection to improve the user performance in downlink direction of Internet traffic. The method is scalable and completely distributed solution to the problem of channel selection in WMN. The simulation results indicate the significant improvement in user performance.

Joint Channel Assignment and Bandwidth Reservation Using Improved FireFly Algorithm (IFA) in Wireless Mesh Networks (WMN)

“…The traffic based channel selection method [14] maximizes the throughput but did not minimize the interference among the flows.…”

“…Muni Lavanya et al [14] have proposed a new method of channel selection to improve the user performance in downlink direction of Internet traffic. The method is scalable and completely distributed solution to the problem of channel selection in WMN.…”

Contribution to the traffc engineering in wireless mesh networks

“…Nevertheless, WMNs are more structured than ad hoc networks and can support more complex protocols and routing metrics [7][8][9][10][11][12][13][14]. Furthermore, WMNs allow the interconnection with other types of networks such as wireless local area networks, cellular networks, metropolitan area networks, vehicular networks [15], sensor networks, disaster scenarios [16][17][18][19], smart grid networks, and personal and body area networks [20,21] and the global Internet [22,23].…”