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Method for improving service quality of mixed businesses in vehicular networking application

A technology of mixed business and quality of service, applied in the direction of electrical components, transmission systems, etc., to achieve the effect of guaranteed throughput

Active Publication Date: 2014-04-09
BEIJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, neither the EDCF mechanism nor the DCF mechanism takes the mobility of the vehicle as a prerequisite

Method used

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  • Method for improving service quality of mixed businesses in vehicular networking application
  • Method for improving service quality of mixed businesses in vehicular networking application
  • Method for improving service quality of mixed businesses in vehicular networking application

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in detail below through specific embodiments and with reference to the accompanying drawings.

[0022] The competitive channel capability refers to the ability of the mobile device to obtain the right to send data packets. The greater the probability of sending packets in a common time slot, the stronger the ability to compete for the channel. In the present invention, the contention channel capability is characterized by the probability of sending packets in a common time slot.

[0023] The method process of the present invention is as figure 1 As shown, a method for improving the service quality of mixed services in Internet of Vehicles applications includes the following steps:

[0024] Step 101: Construct a mobile scenario-based communication model of mixed non-real-time services and real-time services.

[0025] Consider the non...

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Abstract

The invention discloses a method for improving service quality of mixed businesses in vehicular networking application. The method includes: constructing a mixed business model under a moving scene; determining a condition Q met by a minimum contention window value of a non-real-time business for ensuring the long-term fairness of the non-real-time business of vehicles; determining a saturated throughput S1 of the non-real-time business and a time delay E (D2) of a real-time business; determining the number x of packets transmitted by all the vehicles in the non-real-time business within a time slot and the number y of packets transmitted in the real-time business within a time slot on basis of S1 and E (D2) as well as business priorities; acquiring the minimum contention window value of the non-real-time business of the vehicles with a vehicle speed Vi and the minimum contention window value of the real-time business of the vehicles based on Q, x and y; and obtaining the vehicle speed and ID of each vehicle in a power coverage range by roadside facilities, broadcasting the ID of each vehicle and the corresponding minimum contention window value to each vehicle, and finding and setting the corresponding minimum contention window value on basis on the ID by each vehicle. The method can improve the service quality of mixed businesses in the vehicular networking application.

Description

technical field [0001] The invention relates to the technical field of vehicle communication, in particular to a method for improving the service quality of mixed services in the application of the Internet of Vehicles. Background technique [0002] The Internet of Vehicles refers to the electronic tags loaded on the vehicle through radio frequency and other identification technologies to realize the extraction and effective use of attribute information and static and dynamic information of all vehicles on the information network platform, and according to different functional requirements. Carry out effective supervision and provide comprehensive services on the running status of vehicles. The application of Internet of Vehicles in intelligent transportation is an effective way to solve traffic problems. [0003] In the existing intelligent transportation system, vehicles (including roadside facilities) equipped with wireless sensor network equipment can use V2V (Vehicle-t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08
Inventor 张琳刘雨王姿郭晋杰霍一丁
Owner BEIJING UNIV OF POSTS & TELECOMM
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