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Link Lifetime Based Route Selection in Mobile Ad-Hoc Networks

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Executive Summary

In this paper, the authors present the set of factors in the physical layer that are relevant to the performance evaluation of the routing protocols. Such factors consist of signal reception, path loss, fading and interference considerations. With this in mind they adopt a numerical approach based on Finite State Markov Chain channel model to study the performance of an ad-hoc routing protocol under various radio propagation models. Further this paper presents a new cross-layer algorithm for joint physical and routing layers in wireless ad hoc networks, applying this to the Optimized Link State Routing (OLSR), protocol to demonstrate the effectiveness of the use of Link LifeTime (LLT) and the channel quality measured by Signal to Interference and Noise Ratio (SINR) as metric in the selection of routes.

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