Incompatibility Between WCETT Route Metric and Flooding Control of AODV in Wireless Mesh Networks
The Weighted Cumulative Expected Transmission Time (WCETT) metric can be incorporated into a routing protocol such as On-Demand Distance Vector Routing (AODV) in wireless mesh network. The new route is called Multi-Radio Link-Quality Source Routing, which is allowed to trade off channel diversity and path length by changing the value of the control parameter. But the incompatibility existed between WCETT and flooding technique in AODV. The original AODV cannot deal with the situation so that WCETT metric is not perfect to get the real link quality. We analyze the reason and the relevant solution is present. After experimental and theoretical analysis, the new route shows good performance than the old one.
KeywordsWCETT AODV Incompatibility Wireless mesh network
This material is based upon work supported by Project by Scientific Research Fund of Hunan Provincial Education Department (No: 10C0685, 10C0691, 11C0534), Hunan Provincial Natural Science Foundation of China (No: 10B034, No: 10JJ3067), and Hunan provincial innovation experiment program for university students (No: KDSC1005). We are grateful to the anonymous reviewers for their valuable comments on this work.
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