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In Wireless Mesh Networks (WMNs) traffic is routed from mobile clients through a multi-hop wireless backbone to and from Internet GateWays (IGWs). Because of their limited number, IGWs become the major traffic bottlenecks. The purpose of this paper is to explore the benefits of introducing load-dependent routing metrics to increase WMN capacity and performance. The authors use weighted shortest path routing and introduce LAETT a weight metric that captures both traffic load and link quality. They compare the scheme to ETT and MIC, two load independent metrics, and show in simulation its benefits for various network and traffic configurations.
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