Vehicle network data distribution congestion control method based on congestion game

A vehicle network and congestion control technology, applied in the field of communication, can solve problems such as not considering services, and achieve the effect of avoiding congestion

Inactive Publication Date: 2014-07-16
西电(日照)创业园管理有限公司
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  • Application Information

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Problems solved by technology

Although PULSAR is a distributed algorithm that can meet the diverse transmission rate and propagation range requirements of different applications, i

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  • Vehicle network data distribution congestion control method based on congestion game
  • Vehicle network data distribution congestion control method based on congestion game
  • Vehicle network data distribution congestion control method based on congestion game

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Embodiment Construction

[0040] Concrete steps of the present invention and implementation methods of related technologies will now be described in detail in conjunction with the accompanying drawings.

[0041] refer to figure 2, the implementation steps of the present invention are as follows:

[0042] Step 1: Establish a congestion game model for the vehicle network.

[0043] According to the existing network congestion game model, combined with the attached Figure 5 , introduce the congestion game model into the vehicle network, and establish an attached Figure 5 Congestion game model for the vehicle network shown:

[0044] {M,E,{F i} i∈M ,{c e} e∈E},

[0045] Wherein, M is a set of participants, which refers to vehicles in the present invention, that is, vehicle A, vehicle B, vehicle C and vehicle D; E is a resource group, that is, a resource vector set of links and time slots; is the policy set of the i-th vehicle, that is, the link selected by the vehicle on a specific time slot is ...

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Abstract

The invention discloses a vehicle network data distribution congestion control method based on a congestion game. The problem that network congestion cannot be effectively solved in the prior art is mainly solved. The method comprises the implementation steps that 1, a congestion game model of a vehicle network is built according to an existing network congestion game model; 2, a utility function of the vehicle network related to service quality and transmission delay is constructed according to a utility function in the congestion game model; 3, a potential function of the congestion game model of the vehicle network is built according to the utility function and is corrected; 4, the convergence problem of the congestion game is converted into potential function value minimization based on the wardrop theory and the congestion game equilibrium existence principle; 5, a slot time distribution matrix is obtained through a heuristic algorithm, and a vehicle selects to carry out transmission or waiting according to the slot time distribution matrix. The method can effectively reduce network congestion, and can be used for vehicle network dense scenes and congestion control of safety relevant application data distribution.

Description

technical field [0001] The invention belongs to the field of communication technology, and further relates to a method for controlling vehicle network data distribution congestion in the field of VANETs, ​​which can be used for congestion control of safety-related application data distribution in dense vehicle scenes. Background technique [0002] Vehicle Ad Hoc Networks VANETs are ad hoc networks for communication between moving vehicles. In the vehicular ad hoc network, each vehicle is equipped with an on-board device, and vehicles rely on this device to freely communicate with each other or communicate with roadside base stations, such as figure 1 shown. [0003] The vehicle ad hoc network supports a series of applications related to traffic safety, such as collaborative collision warning CCW, traffic signal violation warning, lane change warning, etc. Such applications ensure the safety of participants as much as possible and reduce the probability of accidents by effe...

Claims

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Application Information

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IPC IPC(8): H04W28/02
Inventor 陈晨李亚娟裴庆祺沈玉龙
Owner 西电(日照)创业园管理有限公司
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