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An optimization method for vanet cluster clustering based on mobility weight

An optimization method and mobility technology, applied in the direction of climate sustainability, advanced technology, sustainable communication technology, etc., can solve problems such as unstable clusters, detailed procedures for not providing specific claims, and movement directions that do not consider the cluster formation process , to achieve the effect of improving stability and reducing delay

Active Publication Date: 2022-05-20
NANJING UNIV OF POSTS & TELECOMM
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Problems solved by technology

The authors also highlight the introduction of SeCH to improve cluster stability, but do not specifically provide a detailed procedure for their claim
In addition, the direction of motion of the vehicles is not considered for the cluster formation process, which is also likely to lead to unstable clusters

Method used

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  • An optimization method for vanet cluster clustering based on mobility weight
  • An optimization method for vanet cluster clustering based on mobility weight
  • An optimization method for vanet cluster clustering based on mobility weight

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Embodiment Construction

[0041] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0042] This embodiment provides a VANET cluster clustering optimization method based on mobility weight, using the mobility information of each vehicle, including node connection level, average speed and distance, the clustering algorithm selects PCH based on the calculated weight value, improving the cluster stability. And in order to maintain cluster stability, SeCH is introduced to take the lead when PCH is about to leave, the speed difference between PCH and SeCH is checked and updated regularly, and the delay in broadcasting these safety messages to CM is minimized to ensure smooth transition to meet the stringent requirements of security applications in VANET environments.

[0043] Such as figure 1 The following steps are shown:

[0044] Step 1, when vehicle X i When entering the network, neighbor relationships are establis...

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Abstract

A clustering optimization method for VANET clusters based on mobility weights, using the mobility information of each vehicle, including node connection level, average speed and distance, the clustering algorithm selects CHs based on the calculated weight values. In order to ensure and maintain cluster stability, SeCH is introduced to take the lead when PCH is about to leave, and the speed difference between PCH and SeCH is regularly checked and updated to ensure a smooth transition to meet the strict requirements of security applications in VANET environments.

Description

technical field [0001] The present invention relates to the field of vehicular ad hoc network technology, in particular to a mobility weight-based VANET cluster clustering optimization method. Background technique [0002] Vehicular ad hoc network (VANET) is one of the promising technologies for supporting resource sharing between adjacent vehicles driving on the road in order to improve road traffic safety and provide infotainment services. Security applications are the most important applications envisioned by VANET and require reliable and timely delivery. These applications have strict quality of service (QoS) requirements in terms of transmission delay and packet loss rate, which cannot be guaranteed by traditional MAC protocols, especially under heavy traffic conditions. The high mobility of vehicles and frequent network topology changes also affect the delivery of safety-critical applications, which are especially prominent in high-density networks. To solve this pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L45/00H04L67/10H04L67/12
CPCH04L45/46H04L67/10H04L67/12Y02D30/70
Inventor 暴建民吴晨杰丁飞米冠宇任素菊
Owner NANJING UNIV OF POSTS & TELECOMM
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