Experimental Performance Analysis of Routing Metrics in Wireless Mesh Networks

Chiraz Houaidia (1) , Adrien van den Bossche (2, 3) , Hanen Idoudi (1) , Thierry Val (2, 3) , Leila Azzouz Saidane (1)

1 ENSI - École Nationale des Sciences de l'Informatique [Manouba]
2 IRIT-RMESS - Réseaux, Mobiles, Embarqués, Sans fil, Satellites
3 UT2J - Université Toulouse - Jean Jaurès

This paper provides a description of a wireless mesh network testbed setup and a measurement-based performance evaluation of the Optimized Link State Routing (OLSR) protocol [7] under three different routing metrics. The considered metrics include hop-count, ETX and ETT. The network performances are evaluated in an indoor testbed formed by heterogeneous MIMO devices. A part of our tests was about the impact of 802.11n features on the network performances showing the importance of lower layers consideration. Our measurements point out the shortcoming of each metric and eventual optimizations towards a more efficient routing. Experimental results show that OLSRETT outperforms OLSR-ETX and OLSR-hopcount significantly in terms of packet loss, end-to-end delay, and efficiency.

Mots clés: Performance; Wireless mesh network; Routing; OLSR; Metric; Testbed

Domaines: Réseaux et télécommunications [cs.NI]; Système d'exploitation [cs.OS]; Architectures Matérielles [cs.AR]; Systèmes embarqués

Chiraz Houaidia, Adrien van den Bossche, Hanen Idoudi, Thierry Val, Leila Azzouz Saidane. Experimental Performance Analysis of Routing Metrics in Wireless Mesh Networks. 9th International Wireless Communications and Mobile Computing Conference (IWCMC 2013) Workshop on Multihop Wireless Network Testbeds and Experiments, Jul 2013, Cagliari, Sardinia, Italy. pp.1011-1016. ⟨hal-01264522⟩