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Internet Gateway Deployment Optimization in a Multi-Channel Multi-Radio Wireless Mesh Network

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3 Author(s)
Bing He ; Univ. of Cincinnati, Cincinnati ; Bin Xie ; Agrawal, D.P.

In a wireless mesh network (WMN), mesh routers (MRs) are interconnected by wireless links and form a wireless backbone to provide ubiquitous high-speed Internet connectivity for mobile clients (MCs). The wireless backbone is tightly integrated with the Internet by a special kind of nodes called as Internet gateways (IGWs). Even though the capacity of WMN can be improved by equipping the MRs with multiple radios working at non-overlapping channels, the deployment of IGW is critical to the network performance of WMN. In this paper, we address the IGW placement problem based on a hierarchical cluster based architecture. The problem is first formulated as a linear program (LP) issue, then some heuristic algorithms are developed. Our simulation results show the effectiveness of the proposed algorithms.

Published in:

Wireless Communications and Networking Conference, 2008. WCNC 2008. IEEE

Date of Conference:

March 31 2008-April 3 2008