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Fuzzy reasoning-based in-vehicle network routing establishment method based on fuzzy reasoning

An in-vehicle network and fuzzy reasoning technology, applied in the field of communication, can solve problems such as not considering link reliability, increasing network routing overhead, local optimum, etc., to achieve improved data transmission performance, accurate communication link reliability value, and good routing performance Effect

Active Publication Date: 2017-12-08
XIDIAN UNIV
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Problems solved by technology

However, because this method does not consider the overall link reliability, it is easy to cause local optimal problems, and every time data transmission, the routing path must be re-established, which increases the overhead of network routing

Method used

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  • Fuzzy reasoning-based in-vehicle network routing establishment method based on fuzzy reasoning
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  • Fuzzy reasoning-based in-vehicle network routing establishment method based on fuzzy reasoning

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Embodiment Construction

[0038] The examples and effects of the present invention will be further described below in conjunction with the accompanying drawings.

[0039] refer to figure 1 , the specific implementation steps of the present invention are as follows:

[0040] Step 1, network initialization.

[0041] In the initialization phase, each node in the network establishes a routing table, and sets the routing table of each node in the network to be empty;

[0042] The source node is taken as the initial node, and the link reliability value is initialized to 1.

[0043] Step 2, node motion information acquisition.

[0044] In the vehicle-mounted network environment, all vehicle nodes obtain the node's own position, movement speed and direction information through the equipped GPS equipment and sensor equipment, and store the acquired information in the node's greeting HELLO data packet. At the same time, the network All nodes periodically broadcast the greeting HELLO packet, the main informat...

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Abstract

The invention discloses a fuzzy reasoning-based in-vehicle network routing establishment method which is mainly used for solving the problem that in the prior art, the data transmission performance is low due to the fact that a reliable communication link is not selected. According to the scheme, the method comprises the steps that 1, a network is initialized; 2, neighbor node movement information is acquired; 3, a source node sends a routing request packet; 4, node-to-node link reliability values are computed by means of fuzzy reasoning according to the step 2, and the link reliability values are updated; 5, whether a current node is a target node or not is judged, if yes, the step 6 is executed, and otherwise, the step 4 is executed; 6, the target node selects the communication link with the highest reliability value and sends a routing reply packet; and 7, whether a routing reply data packet reaches the source node or not is judged, if yes, a routing path is established to complete data transmission, and otherwise, the step 6 is executed. According to the method, the data packet delivery success rate of the network is increased, the network transmission time delay is shortened, the stability and high efficiency of the communication links are guaranteed, and the method can be applied to data communication.

Description

technical field [0001] The invention belongs to the technical field of communication, in particular to a fuzzy reasoning-based vehicle network route establishment method, which can be applied to data communication transmission. Background technique [0002] Vehicle network routing is the process of establishing communication links in the vehicle network environment to solve vehicle network communication problems and ensure stable and efficient transmission of communication data. [0003] At present, in the technical field of solving vehicle network communication problems, a method based on routing link stability is usually used to establish a communication path for vehicle network routing, so as to improve the performance of data transmission in the network. [0004] In the patent application "Used for vehicle-mounted Ad Hoc network based on improved AODV protocol" (application number: 201210181415.4, publication number: CN102769888B, authorized announcement date: 2015.03.11...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/721H04L12/741H04L45/74
CPCH04L43/08H04L45/14H04L45/54H04L45/745
Inventor 方敏何良郑家瑜吴锦桥杨奇
Owner XIDIAN UNIV
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