Location Verification Performance in the Presence
of Verifier Location Error
Ullah Ihsan
Electrical Engineering & Telecommunications, UNSW Australia
ihsanullah@ieee.org
Ziqing Wang
Electrical Engineering & Telecommunications, UNSW Australia
ziqing.wang1@student.unsw.edu.au
Robert Malaney
Electrical Engineering & Telecommunications, UNSW Australia
r.malaney@unsw.edu.au
Andrew Dempster
Electrical Engineering & Telecommunications, UNSW Australia
a.dempster@unsw.edu.au
Shihao Yan
College of Engineering & Computer Science, ANU Australia
shihao.yan@mq.edu.au
In this paper, we study the impact on the performance of a Differential
Received Signal Strength (DRSS) based Location Verification System
(LVS) caused by location errors in the reported positions of verifiers. In this
system, the verifiers (trusted) and a non-verified user (initially untrusted)
report their locations using the Global Positioning System (GPS). The user’s
reported position is verified by consistency checks with DRSS
measurements made by verifiers. We illustrate how the anticipated location
errors on verifier GPS positions can have a significant impact on the
location verification performance. The results reported here are important
for real-world implementations of an LVS in the context of emerging
vehicular networks, in which the verifiers are other nearby vehicles.
KEYWORDS: Vehicle Ad-hoc Network (VANET), Location Verification
System (LVS), Intelligent Transportation System (ITS), Differential
Received Signal Strength (DRSS)
1. INTRODUCTION
The number of vehicles on our roads is growing at a faster pace than road infrastructure
development. This imbalance has resulted in increased traffic congestion and increased road
accidents. Engineers in recent times have worked to address these growing problems by
introducing an Intelligent Transportation System (ITS). Amongst other outcomes, an ITS
aims at efficiently addressing traffic routing, congestion, accidents, smart-roadside tolling,
and distribution of traffic loads (e.g. Dimitrakopoulos et al. 2010; Weiland et al. 2000). Such
a system greatly relies on the accurate locations of vehicles to achieve its aimed
functionalities. However, a user can cheat an ITS by spoofing their location (reporting a
claimed GPS position far from their actual position). If such malicious behaviour goes
unnoticed this can lead to serious repercussions, e.g., vehicle collisions, injuries and even loss
of human life.
International Global Navigation Satellite Systems Association
IGNSS Symposium 2018
Colombo Theatres,
Kensington Campus, UNSW Australia
7 – 9 February 2018
