Location based vehicle multihop protocol unicast apparatus and routing method using the apparatus
AssigneeElectronics and Telecommunications Research Institute
InventorsMin Jung Kim, Sangwoo Lee, Hyun Kyun Choi, Han Byeog Cho, Hyun Seo Oh
Life of this patent
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Abstract
In order for a source node including a vehicle multihop protocol unicast apparatus to route data to a destination node, the source node broadcasts a location request message to neighbor node and receives a location response message from the neighbor nodes in response to the location request message. Therefore, the source node routes unicast data on the basis of the location information of the destination node included in the location response message. At this time, the source node uses a location based forwarder selecting algorithm in order to select a forwarder.
Claims13
A vehicle multihop protocol (VMP) unicast apparatus, comprising:
- a message processing unit extracting first node information on at least one neighbor node by broadcasting a hello message to the neighbor node, and generating and transmitting a unicast message on the basis of the first node information;
- a location information processing unit receiving location information data on a node and verifying second node information of the node included in the location information data;
- a vehicle location processing unit storing the second node information received from the location information processing unit, verifying the location of a destination node to which the unicast message will be transmitted, and routing the unicast message,
- wherein the first node information includes location information and speed information of the neighbor node and the second node information includes information including the location of the node, the speed of node, a movement direction, and time information;
- and
- a forwarder selecting unit verifying a location of a destination node, transferring a location response message to a source node by unicast based on the first node information, and selecting a forwarder to forward a packet.
A method in which a source node including a vehicle multihop protocol (VMP)-unicast apparatus routes data to a destination node, comprising:
- extracting first node information on at least one neighbor node by broadcasting a hello message to the neighbor node, and generating and transmitting a unicast message on the basis of the first node information;
- receiving location information data on a node and verifying second node information of the node included in the location information data;
- storing the second node information received from the location information processing unit, verifying the location of a destination node to which the unicast message will be transmitted, and routing the unicast message,
- wherein the first node information includes location information and speed information of the neighbor node and the second node information includes information including the location of the node, the speed of node, a movement direction, and time information;
- verifying a location of a destination node, transferring a location response message to a source node by unicast based on the first node information, and selecting a forwarder to forward a packet;
- allowing the source node to broadcast a location request (LREQ) message to neighbor nodes;
- receiving a location response (LRES) message in response to the location request message from the neighbor nodes and verifying location information of the destination node included in the location response message;
- and
- routing unicast data on the basis of the location information of the destination node.
Dependencies are inferred from the claim text.