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Towards an Optimized Traffic-Aware Routing in Wireless Mesh Networks

Abstract : In this paper we study through simulations the impact of PHY/MAC protocols on higher layers. In a comparative way, we investigate the effectiveness of some protocols when they coexist on a wireless mesh network environment. Results show that PHY/MAC parameters have an important impact on routing performances. Based on these results, we propose two tra c-aware routing metrics based on link availability. The information about the link availability/occupancy is picked up from lower layers using a cross-layer approach. The rst metric is load-sensitive and aims to balance the tra c load according to the availability of a link to support additional ows. The second metric reproduces better the capacity of a link since it is based on its residual bandwidth. Using several real experiments, we have shown that our proposals can accurately determine better paths in terms of throughput and delay. Our experiments are carried out into an heterogeneous IEEE 802.11n based network running with OLSR routing protocol.
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Chiraz Houaidia, Hanen Idoudi, Adrien van den Bossche, Thierry Val, Leila Azzouz Saidane. Towards an Optimized Traffic-Aware Routing in Wireless Mesh Networks. International Journal of Space-Based and Situated Computing, Inderscience, 2014, 4 (n° 3-4), pp. 217-232. ⟨10.1504/IJSSC.2014.066013⟩. ⟨hal-01136895⟩

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