Paper Info
Title
Time synchronization in vehicular ad-hoc networks: A survey on theory and practice.
Abstract
Time synchronization in communication networks provides a common time frame among all nodes, thus supporting various network functions such as message transmission, channel scheduling and resource sharing in real-time and in correct order. In vehicular ad-hoc networks (VANETs) for connected and automated vehicles, network nodes must be synchronized to exchange time-critical vehicle locations and warning messages for various road safety applications. However, this is challenging as the data communication systems need to achieve low latency and high reliability under the conditions of high user dynamics and density. While many synchronization techniques have been developed for general communications networks, it is necessary to understand the requirements for VANET time synchronization and the applicability of existing time synchronization techniques in VANET applications. This paper provides a survey on theory and practice of time synchronization in VANETs. It addresses some key factors in VANET time synchronization such as requirements analysis, precision, accuracy, availability, scalability and compatibility, and highlights the advantages of Global Navigation Satellite System (GNSS) in VANET time synchronization. Through this survey, some insights are developed into existing and emerging protocols for time synchronization in VANETs.
Year
DOI
Venue
2018
10.1016/j.vehcom.2018.09.001
Vehicular Communications
Keywords
Field
DocType
VANET,Time synchronization,ITS,WLAN,GNSS,WSN
Synchronization,Telecommunications network,Computer science,Node (networking),Communications system,Computer network,Wireless ad hoc network,Shared resource,Vehicular ad hoc network,Distributed computing,Scalability
Journal
Volume
ISSN
Citations 
14
2214-2096
2
PageRank 
References 
Authors
0.36
25
4
Name
Order
Citations
PageRank
Khondokar Fida Hasan150.76
Charles Wang271.29
Yanming Feng3236.38
Yu-Chu Tian455059.35