Next Article in Journal
The Electronic Nose’s Emerging Role in Respiratory Medicine
Previous Article in Journal
Vehicle Collision Prediction under Reduced Visibility Conditions
Article Menu
Issue 9 (September) cover image

Export Article

Open AccessArticle
Sensors 2018, 18(9), 3028;

Time Slot Utilization for Efficient Multi-Channel MAC Protocol in VANETs

Department of Computer Science and Engineering, Kyung Hee University, Yongin-si, Gyeonggi-do 17104, Korea
Department of Electronics and Telecommunication Engineering, Faculty of Electrical and Electronics Engineering Ton Duc Thang University, Ho Chi Minh City 756636, Vietnam
School of Information Technologies, The University of Sydney, Sydney, NSW 2006, Australia
Authors to whom correspondence should be addressed.
Received: 3 July 2018 / Revised: 7 September 2018 / Accepted: 7 September 2018 / Published: 10 September 2018
(This article belongs to the Section Sensor Networks)
Full-Text   |   PDF [1009 KB, uploaded 10 September 2018]   |  


In vehicular ad hoc networks (VANETs), many schemes for a multi-channel media access control (MAC) protocol have been proposed to adapt to dynamically changing vehicle traffic conditions and deliver both safety and non-safety packets. One such scheme is to employ both time-division multiple access (TDMA) and carrier-sense multiple access (CSMA) schemes (called a hybrid TDMA/CSMA scheme) in the control channel (CCH) interval. The scheme can adjust the length of the TDMA period depending on traffic conditions. In this paper, we propose a modified packet transmitted in the TDMA period to reduce transmission overhead under a hybrid TDMA/CSMA multi-channel MAC protocol. Simulation results show that a MAC protocol with a modified packet supports an efficient packet delivery ratio of control packets in the CCH. In addition, we analyze the hybrid TDMA/CSMA multi-channel MAC protocol with the modified packet under saturated throughput conditions on the service channels (SCHs). The analysis results show that the number of neighbors has little effect on the establishment of the number of time slots in TDMA periods and on SCHs under saturated throughput conditions. View Full-Text
Keywords: VANET; multi-channel MAC; saturation throughput VANET; multi-channel MAC; saturation throughput

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).

Share & Cite This Article

MDPI and ACS Style

Nguyen, V.; Anh Khoa, T.; Zin Oo, T.; H. Tran, N.; Seon Hong, C.; Huh, E.-N. Time Slot Utilization for Efficient Multi-Channel MAC Protocol in VANETs. Sensors 2018, 18, 3028.

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



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