The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks

Vehicle-to-grid (V2G) is an important component of smart grids and plays a significant role in improving grid stability, reducing energy consumption and generating cost. However, while electric vehicles are being charged, it is possible to expose the location and movement trajectories of the electri...

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Main Authors: Yuancheng Li, Pan Zhang, Yimeng Wang
Format: Article
Language:English
Published: MDPI AG 2018-10-01
Series:Energies
Subjects:
Online Access:http://www.mdpi.com/1996-1073/11/10/2625
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author Yuancheng Li
Pan Zhang
Yimeng Wang
author_facet Yuancheng Li
Pan Zhang
Yimeng Wang
author_sort Yuancheng Li
collection DOAJ
description Vehicle-to-grid (V2G) is an important component of smart grids and plays a significant role in improving grid stability, reducing energy consumption and generating cost. However, while electric vehicles are being charged, it is possible to expose the location and movement trajectories of the electric vehicles, thereby triggering a series of privacy and security issues. In response to this problem, we propose a new quadtree-based spatial decomposition algorithm to protect the location privacy of electric vehicles. First of all, we use a random sampling algorithm, which is based on differential privacy, to obtain enough spatial data to achieve the balance between large-scale spatial data and the amount of noise. Secondly, in order to overcome the shortcomings of using tree height to control Laplacian noise in the quadtree, we use sparse vector technology to control the noise added to the tree nodes. Finally, according to the vehicle-to-grid network structure in the smart grid, we propose a location privacy protection model based on distributed differential privacy technology for EVs in vehicle-to-grid networks. We demonstrate application of the proposed model in real spatial data and show that it can achieve the best effect on the security of the algorithm and the availability of data.
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spelling doaj.art-352b209738c84cd8ac311b97e28f58492022-12-22T04:24:19ZengMDPI AGEnergies1996-10732018-10-011110262510.3390/en11102625en11102625The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G NetworksYuancheng Li0Pan Zhang1Yimeng Wang2School of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaSchool of Control and Computer Engineering, North China Electric Power University, Beijing 102206, ChinaVehicle-to-grid (V2G) is an important component of smart grids and plays a significant role in improving grid stability, reducing energy consumption and generating cost. However, while electric vehicles are being charged, it is possible to expose the location and movement trajectories of the electric vehicles, thereby triggering a series of privacy and security issues. In response to this problem, we propose a new quadtree-based spatial decomposition algorithm to protect the location privacy of electric vehicles. First of all, we use a random sampling algorithm, which is based on differential privacy, to obtain enough spatial data to achieve the balance between large-scale spatial data and the amount of noise. Secondly, in order to overcome the shortcomings of using tree height to control Laplacian noise in the quadtree, we use sparse vector technology to control the noise added to the tree nodes. Finally, according to the vehicle-to-grid network structure in the smart grid, we propose a location privacy protection model based on distributed differential privacy technology for EVs in vehicle-to-grid networks. We demonstrate application of the proposed model in real spatial data and show that it can achieve the best effect on the security of the algorithm and the availability of data.http://www.mdpi.com/1996-1073/11/10/2625electric vehicle (EV)location privacy protectiondifferential privacyrandom sampling algorithmsparse vector technologyvehicle to grid (V2G)
spellingShingle Yuancheng Li
Pan Zhang
Yimeng Wang
The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks
Energies
electric vehicle (EV)
location privacy protection
differential privacy
random sampling algorithm
sparse vector technology
vehicle to grid (V2G)
title The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks
title_full The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks
title_fullStr The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks
title_full_unstemmed The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks
title_short The Location Privacy Protection of Electric Vehicles with Differential Privacy in V2G Networks
title_sort location privacy protection of electric vehicles with differential privacy in v2g networks
topic electric vehicle (EV)
location privacy protection
differential privacy
random sampling algorithm
sparse vector technology
vehicle to grid (V2G)
url http://www.mdpi.com/1996-1073/11/10/2625
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