System and method for routing, mobility, application services, discovery, and sensing in a vehicular network environment

  • US 9,036,509 B1
  • Filed: 05/27/2011
  • Issued: 05/19/2015
  • Est. Priority Date: 01/14/2011
  • Status: Active Grant
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First Claim
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1. A method, comprising:

  • receiving at a receiving node, from a sending node, a data packet to be routed from the receiving node to a destination node in a vehicular ad hoc network;

    decapsulating the data packet to identify a path to the destination node;

    determining the identified path is a dead end if no neighbor nodes are currently available to the receiving node;

    storing the data packet if the identified path is determined to be a dead end; and

    initiating a timer for the stored data packet, wherein the data packet is not dropped by the receiving node if an available path to the destination node is identified and selected for the data packet before expiry of the timer, wherein the available path is identified and selected by;

    querying by the receiving node, after the identified path is determined to be a dead end and before the expiry of the timer, a geo location server for location information of the destination node;

    receiving from the geo location server a response to the query, wherein the response includes the location information of the destination node; and

    selecting the available path from two or more available paths from the receiving node to the destination node, wherein the selecting is based, at least in part, on a user tolerance for delay associated with the data packet, a connection cost associated with the available path, and an infrastructure connection type associated with the available path.

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