Monitoring link quality in a mobile ad hoc network

Details Monitoring link quality in a mobile ad hoc network Monitoring link quality in a mobile ad hoc network

H - Electricity

04

L

H04L 12/56 (2006.01) H04L 12/28 (2006.01) H04Q 7/38 (2006.01)

Patent

CA 2494786

The mobile ad-hoc network includes a plurality of mobile nodes connected together by a plurality of wireless communication links. The method (FIG. 2) and system for monitoring link quality includes, at each node, recording transmission information for transmissions on links to neighboring nodes (102), calculating a packet error rate for each of the links to the neighboring nodes based upon the recorded transmission information (104), and determining link quality for each of the links to the neighboring nodes based upon the calculated packet error rate (106). The transmission information preferably includes packet size transmitted data, packet size received data, collision data and/or retry data.

Le réseau ad hoc mobile de l'invention comprend une pluralité de noeuds mobiles reliés ensemble par une pluralité de lignes de communication sans fil. Le procédé et le système de contrôle de la qualité des liaisons consistent, au niveau de chaque noeud, à: enregistrer des données de transmission à transmettre par raccordements à des noeuds voisins; calculer, pour chaque raccordement vers des noeuds voisins, un taux d'erreur par paquets basé sur les données de transmission enregistrées; et déterminer, pour chaque raccordement vers des noeuds voisins, la qualité de liaison sur la base du taux d'erreur par paquets calculé. Les données de transmission comprennent, de préférence, des données transmises par paquets, des données reçues par paquets, des données de collision et/ou des données de réessai.

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