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Routing Establishment Method for Vehicular Network Based on Fuzzy Reasoning

An in-vehicle network and fuzzy reasoning technology, applied in the field of communication, can solve problems such as local optimum, increased network routing overhead, and no consideration of link reliability, etc., to achieve accurate communication link reliability, improved data transmission performance, and routing performance Good results

Active Publication Date: 2020-08-11
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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  • Routing Establishment Method for Vehicular Network Based on Fuzzy Reasoning
  • Routing Establishment Method for Vehicular Network Based on Fuzzy Reasoning
  • Routing Establishment Method for Vehicular Network 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 method for establishing a vehicle network route based on fuzzy reasoning, which mainly solves the problem of low data transmission performance caused by not selecting a reliable communication link in the prior art. The scheme is: 1) Initialize the network; 2) Obtain the movement information of neighbor nodes; 3) The source node sends a routing request packet; 4) According to 2), use fuzzy reasoning to calculate the link reliability value between nodes, and update the link reliability value. 5) determine whether the current node is the destination node: if so, then perform step 6); otherwise, return to step 4); 6) the destination node selects the communication link with the highest reliability value, and sends a routing reply packet; 7) judges the routing Whether the reply data packet reaches the source node: if yes, establish a routing path and complete the data transmission; otherwise, return to step 6). The invention improves the success rate of network data packet delivery, reduces the network transmission time delay, ensures the stability and high efficiency of the communication link, and 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 Patents(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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