Vehicle location privacy protection method in vehicle ad hoc network

Abstract

The invention discloses a vehicle position privacy protection method of a vehicular ad hoc network. The method comprises the following steps: a privacy model is first set to assess a current position privacy of different vehicles so as to reflect a reputation module and a mix-zone criterion of a cooperation degree of the current vehicle; any one vehicle in the vehicular ad hoc network determines whether to cooperate and change a pseudo name to protect a vehicle i according to a current reputation value of the vehicle i sending a pseudo name request and based on a judgment whether the one vehicle is within a mix-zone of the vehicle i; and the reputation value of the one vehicle can be dynamically adjusted according to the current position privacy of the one vehicle and pseudo name residual time. The method of the invention can meet the requirement of protecting the current position of the vehicle and can substantially reduce the energy cost; and the method has the advantages that more vehicles are involved in the pseudo name change and the safety of the position privacy of the vehicular wireless network is greater.

Description

technical field [0001] The present invention relates to the field of wireless communication technology, in particular to a vehicle location privacy protection for a vehicle ad hoc network that can effectively protect the location privacy of vehicles; can encourage more vehicles to participate in pseudonym changes, thereby significantly improving the location privacy security of the network method. Background technique [0002] With the rapid development of key technologies such as wireless communication technology, on-board embedded computing, and various on-board sensors, Vehicular ad hoc network (VANET) is considered to be a very large-scale mobile ad hoc network with a high degree of practicality. The vehicle-mounted ad hoc network is a safe, fast, effective, and open-structured vehicle-to-vehicle communication intelligent transportation system composed of vehicles and vehicles, vehicles and roadside units (Roadside Units, RSUs), which can realize accident warning, assist...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to overcome the problems caused by selfish vehicles not cooperating in the location privacy protection process of the vehicle-mounted ad hoc network in the prior art, resulting in a decrease in vehicle location privacy security; or vehicles in the vehicle-mounted ad hoc network frequently changing pseudonyms The lack of increased energy expenditure provides a vehicle location privacy protection method for vehicle ad hoc networks that can effectively protect the location privacy of vehicles; can encourage more vehicles to participate in pseudonym changes, thereby significantly improving the location privacy security of the network

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