A cross-layer MAC aware pseudonym (MAP) scheme for the VANET

Zishan Liu, Lin Zhang, Wei Ni, Iain B. Collings

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review


In vehicular ad hoc networks (VANETs), safety messages must be protected for location privacy. Pseudonym schemes have provided a promising solution. However, attacks could still be carried out from the medium access control (MAC) layer. In this paper, we present a new MAC semantic linking attack that links the new and old pseudonyms by analyzing the vehicles' transmission patterns in the MAC layer, even if they change pseudonyms simultaneously. To deal with the attack, a MAC layer aware pseudonym (MAP) scheme is proposed. The MAP scheme is compatible with the standard and coordinates each vehicle to access the wireless medium in a time-slotted manner. In MAP scheme, vehicles change pseudonyms and slot utilization pattern consistently. The interactive influence between the pseudonym changing and safety message transmission is evaluated. Taking the pseudonym age, anonymity set size, time-toconfusion and packet delivery ratio as the performance metrics, extensive simulation results have verified that the MAP scheme can improve the location privacy and enhance transmission efficiency in VANETs.

Original languageEnglish
Title of host publication2018 IEEE Global Communications Conference (GLOBECOM)
Subtitle of host publicationproceedings
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages6
ISBN (Electronic)9781538647271, 9781538669761
ISBN (Print)9781538647288
Publication statusPublished - 2018
Event2018 IEEE Global Communications Conference, GLOBECOM 2018 - Abu Dhabi, United Arab Emirates
Duration: 9 Dec 201813 Dec 2018

Publication series

ISSN (Print)1930-529X
ISSN (Electronic)2576-6813


Conference2018 IEEE Global Communications Conference, GLOBECOM 2018
Country/TerritoryUnited Arab Emirates
CityAbu Dhabi


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