Next Article in Journal
Gas Sensing Properties of p-Co3O4/n-TiO2 Nanotube Heterostructures
Next Article in Special Issue
An Improved Positioning Method for Two Base Stations in AIS
Previous Article in Journal
A Framework to Design the Computational Load Distribution of Wireless Sensor Networks in Power Consumption Constrained Environments
Previous Article in Special Issue
Communication Architecture in Mixed-Reality Simulations of Unmanned Systems
Article Menu
Issue 4 (April) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(4), 955; https://doi.org/10.3390/s18040955

Supporting Beacon and Event-Driven Messages in Vehicular Platoons through Token-Based Strategies

1
Innovation, Design and Technology (IDT), Mälardalen University, 72123 Västerås, Sweden
2
RISE SICS Västerås, Stora gatan 36, 722 12 Västerås, Sweden
3
Department of Computer Engineering (DISCA), Universitat Politècnica de València, 46022 València, Spain
*
Author to whom correspondence should be addressed.
Received: 14 February 2018 / Revised: 17 March 2018 / Accepted: 22 March 2018 / Published: 23 March 2018
(This article belongs to the Special Issue Smart Vehicular Mobile Sensing)
View Full-Text   |   Download PDF [561 KB, uploaded 23 March 2018]   |  

Abstract

Timely and reliable inter-vehicle communications is a critical requirement to support traffic safety applications, such as vehicle platooning. Furthermore, low-delay communications allow the platoon to react quickly to unexpected events. In this scope, having a predictable and highly effective medium access control (MAC) method is of utmost importance. However, the currently available IEEE 802.11p technology is unable to adequately address these challenges. In this paper, we propose a MAC method especially adapted to platoons, able to transmit beacons within the required time constraints, but with a higher reliability level than IEEE 802.11p, while concurrently enabling efficient dissemination of event-driven messages. The protocol circulates the token within the platoon not in a round-robin fashion, but based on beacon data age, i.e., the time that has passed since the previous collection of status information, thereby automatically offering repeated beacon transmission opportunities for increased reliability. In addition, we propose three different methods for supporting event-driven messages co-existing with beacons. Analysis and simulation results in single and multi-hop scenarios showed that, by providing non-competitive channel access and frequent retransmission opportunities, our protocol can offer beacon delivery within one beacon generation interval while fulfilling the requirements on low-delay dissemination of event-driven messages for traffic safety applications. View Full-Text
Keywords: intelligent transportation system; vehicular ad hoc networks; MAC layer; token passing; IEEE 802.11p; beacon broadcasting; platooning; reliability; event-driven messages; safety applications intelligent transportation system; vehicular ad hoc networks; MAC layer; token passing; IEEE 802.11p; beacon broadcasting; platooning; reliability; event-driven messages; safety applications
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Balador, A.; Uhlemann, E.; Calafate, C.T.; Cano, J.-C. Supporting Beacon and Event-Driven Messages in Vehicular Platoons through Token-Based Strategies. Sensors 2018, 18, 955.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top