Method and system of multi-path routing of vehicular ad hoc network

A vehicle-mounted self-organizing and self-organizing network technology, applied in network topology, electrical components, wireless communication, etc., to achieve the effect of ensuring stability

Active Publication Date: 2014-09-03
CHINA UNITED NETWORK COMM GRP CO LTD
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Problems solved by technology

[0005] The invention provides a multi-path routing method and system for a vehicle-mounted ad hoc network to solve the technical problem of how to ensure the stability of communication links between vehicles

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  • Method and system of multi-path routing of vehicular ad hoc network
  • Method and system of multi-path routing of vehicular ad hoc network
  • Method and system of multi-path routing of vehicular ad hoc network

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Embodiment Construction

[0045] In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0046] figure 1 It is a flow chart of the multipath routing method of the vehicular ad hoc network in this embodiment.

[0047] S101 The source vehicle node determines the IP of the destination vehicle node to be routed;

[0048] For a vehicle ad hoc network, the license plate of each vehicle node in the network corresponds to a unique IP address; the source vehicle node can obtain its corresponding IP address by searching the license plate number of the destination vehicle node;

[0049] S102 The source vehicle node sends a routing request (RREQ) packet to start the route ...

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Abstract

The invention provides a method and a system of multi-path routing of a vehicular ad hoc network. The method comprises the following steps that: a source node initiates a route discovery process to a destination node through transmitting a routing request, and the request comprises a moving direction of the source node; a first-jump intermediate node, which receives the routing request, writes the own moving direction into the routing request, and the routing request is continued to transmit; if a non-first-jump intermediate node, which receives the routing request, judges that the own moving direction is the same as the moving direction of the first-jump intermediate node, the own node is taken as an experience node from the source node to the destination node, and the routing request is continued to transmit; if the destination node, which receives the routing request, judges that the moving direction of the first-jump intermediate node is the same as the moving direction of the source node or the moving direction of the first-jump intermediate node is the same as the moving direction of the destination node, a path from the source node to the destination node is taken as a discovered route, and is cooperative with the intermediate node on a discovering route to inform the discovered route to a source vehicle node. According to the method and the system, the stability of a communication link between vehicle nodes is guaranteed.

Description

technical field [0001] The invention relates to a vehicular ad hoc network, in particular to a multipath routing method and system for a vehicular ad hoc network. Background technique [0002] Vehicle Ad hoc Network (VANET) combines wireless Ad hoc network and wireless sensor network, and creatively applies Ad hoc network between vehicles, which is the mobile ad hoc network (Mobile Ad hoc Network, MANET) a branch. Through VANET, vehicles can exchange information such as vehicle speed, location, and road conditions in real time. VANET has broad prospects in traffic congestion control, traffic safety, travel planning, and travel entertainment. However, in VANET, due to the characteristics of fast moving vehicles, strong network dynamics, and complex environments, how can VANET routing protocols ensure high efficiency and reliability? Accurate and real-time transmission of data information between vehicles has become a difficult point in VANET research. The traditional MANET...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W40/24H04W84/18
Inventor 刘媛媛李建宇
Owner CHINA UNITED NETWORK COMM GRP CO LTD
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