Routing protocol design method based on link quality and node forwarding capacity

A link quality and routing protocol technology, applied in the field of communication, can solve the problem of extending the successful transmission delay of messages, etc., and achieve the effect of acceptable time extension, flexible transmission link, efficient and accurate evaluation

CN105657777AActive Publication Date: 2016-06-08XIDIAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-06-08

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Abstract

The invention discloses a routing protocol design method based on link quality and node forwarding capacity. The problems that in an existing routing protocol based on the geographic position, data grouping end-to-end transmission path selection is low in efficiency, consequently, the data grouping delivery rate is small, and network throughput is small are solved. The realizing scheme includes the steps that parameters which are related to node quality and include the motion direction, the distance, the link quality and internal forwarding capacity are calculated; then, candidate adjacent node set selection and node priority ranking are conducted through a screening mechanism and a weighting algorithm; based on a candidate adjacent node set and node priority information, an opportunity forwarding strategy is executed on data grouping. On the premise of ensuring acceptable data grouping end-to-end delay, the delivery rate of data packages and the network throughput are increased. The routing protocol design method can be applied to communication among vehicles in car networking, effective information exchange among the vehicles is achieved, and safety and efficiency of vehicle traffic are improved.
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Description

Technical field

[0001] The present invention belongs to the field of communication technology, and further relates to a path selection method for end-to-end transmission of data packets in a vehicle self-organizing network, which can be applied to the communication between vehicles in the vehicle self-organizing network to realize real-time and effective information between vehicles Interaction to improve the safety and efficiency of vehicle traffic. Background technique

[0002] At present, the vehicle self-organizing network, referred to as the Internet of Vehicles, has emerged in many application fields such as traffic safety, traffic efficiency, and social entertainment. To realize the above-mentioned various applications, the Internet of Vehicles is a data interactive network composed of automobiles, and the end-to-end transmission of data packets is inevitable, which further involves the key technology of routing protocol design. Routing protocols in wireless ad hoc networ...

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Embodiment Construction

[0031] The implementation steps of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0032] In the system model on which the present invention is based, each node can perceive its own location information through a GPS device; other nodes within the communication range of a node are regarded as its neighbor nodes, and this node can communicate with each neighbor node; the source node can Through the ideal information exchange mechanism and location service system to obtain the information of its neighbor nodes.

[0033] Reference figure 1 , The implementation steps of the present invention are as follows:

[0034] Step 1. Evaluate various parameters related to node quality.

[0035] The quality of neighboring nodes around the source node is related to which neighboring nodes can be selected as candidate forwarding nodes for the next hop. Therefore, the evaluation of the quality of neighboring nodes is very important. The k...