Addressing and routing in wireless mesh networks

Details Addressing and routing in wireless mesh networks Addressing and routing in wireless mesh networks

H - Electricity

04

L

H04L 29/12 (2006.01) H04L 12/28 (2006.01) H04L 12/56 (2006.01) H04L 29/06 (2006.01) H04L 29/08 (2006.01)

Patent

CA 2466111

The present invention is directed to a method and apparatus for forwarding and/or addressing a packet in a wireless network, wherein an address information of a protocol layer lower than a network layer is added to the packet, which address in-formation indicates the geographical location of a destination node and which can be changed during forwarding of the packet through said wireless network. The packet is then forwarded within the wireless network based on a difference be-tween the geographical location of a present node and the destination node. This location based addressing makes packet forwarding easier in dynamic mesh net-works, because each node (10) can decide into which direction to forward incom-ing packets based only on the information in the packet header and its own loca-tion.

La présente invention concerne un procédé et un appareil permettant d'acheminer et/ou d'adresser un paquet dans un réseau sans fil, une information d'adresse d'une couche de protocole inférieure à une couche réseau étant ajoutée au paquet, ladite information d'adresse indiquant l'emplacement géographique d'un noeud destinataire et pouvant être changée au cours de l'acheminement du paquet dans ledit réseau sans fil. Le paquet est ensuite acheminé dans le réseau sans fil en fonction d'une différence entre l'emplacement géographique d'un noeud présent et le noeud destinataire. Ledit adressage basé sur l'emplacement rend l'acheminement de paquets plus facile dans des réseaux maillés dynamiques, étant donné que chaque noeud (10) peut décider dans quelle direction acheminer des paquets entrants, uniquement en fonction de l'information contenue dans l'en-tête du paquet et de son propre emplacement.

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