Patent ID: 7978672
Filing Date: 2011-07-12
Classification: H04L,H04W

Abstract:
1. A system for link-state source routing in an ad hoc network, the system comprising: a send buffer that holds packets while route discovery is performed; a maintenance buffer that is used for route maintenance; a request table that is used to identify duplicate route discovery requests; at least one link quality metric module that determines quality of links to neighboring nodes; and a neighbor cache for translating layer 2.5 virtual addresses into physical addresses, wherein the link-state source routing is performed using the layer 2.5 virtual addresses, wherein a forwarding node is configured to modify a source route with one or more updated link quality measurements, wherein a destination node is configured to update the destination node's link cache with link quality information for a source route, and to send to a source node a route reply message that conveys link quality information for the source route, and wherein the route reply message is sent by way of an independently-discovered route from the destination node to the source node.