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Sensors 2017, 17(10), 2293; https://doi.org/10.3390/s17102293

An Efficient and QoS Supported Multichannel MAC Protocol for Vehicular Ad Hoc Networks

1
College of Computer Science and Technology, Dalian University of Technology, Dalian 116024, China
2
College of Science and Information, Qingdao Agricultural University, Qingdao 266109, China
*
Author to whom correspondence should be addressed.
Received: 27 August 2017 / Revised: 22 September 2017 / Accepted: 1 October 2017 / Published: 9 October 2017
(This article belongs to the Special Issue Smart Vehicular Mobile Sensing)
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Abstract

Vehicular Ad Hoc Networks (VANETs) employ multichannel to provide a variety of safety and non-safety (transport efficiency and infotainment) applications, based on the IEEE 802.11p and IEEE 1609.4 protocols. Different types of applications require different levels Quality-of-Service (QoS) support. Recently, transport efficiency and infotainment applications (e.g., electronic map download and Internet access) have received more and more attention, and this kind of applications is expected to become a big market driver in a near future. In this paper, we propose an Efficient and QoS supported Multichannel Medium Access Control (EQM-MAC) protocol for VANETs in a highway environment. The EQM-MAC protocol utilizes the service channel resources for non-safety message transmissions during the whole synchronization interval, and it dynamically adjusts minimum contention window size for different non-safety services according to the traffic conditions. Theoretical model analysis and extensive simulation results show that the EQM-MAC protocol can support QoS services, while ensuring the high saturation throughput and low transmission delay for non-safety applications. View Full-Text
Keywords: Vehicular Ad Hoc Networks (VANETs), Multichannel Medium Access Control (MAC), transport efficiency and infotainment applications, service channel (SCH) reservation, Quality-of-Service (QoS) support Vehicular Ad Hoc Networks (VANETs), Multichannel Medium Access Control (MAC), transport efficiency and infotainment applications, service channel (SCH) reservation, Quality-of-Service (QoS) support
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Song, C.; Tan, G.; Yu, C. An Efficient and QoS Supported Multichannel MAC Protocol for Vehicular Ad Hoc Networks. Sensors 2017, 17, 2293.

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