HER-MAC: A Hybrid Efficient and Reliable MAC for Vehicular Ad Hoc Networks

Dang, Duc Ngoc Minh; Dang, Hanh Ngoc; Nguyen, VanDung; Htike, Zaw Zaw; Hong, Choong Seon

doi:10.1109/aina.2014.27

Cited by 63 publications

(39 citation statements)

References 13 publications

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“…The analyses of delay, packet delivery ratio and throughput were included in the model. However, in order to improve the reliability of the safety applications among vehicles, the HER-MAC protocol [21] allows vehicles to broadcast their safety applications in the reserved slot time, utilizing whole the SI (100 ms); this makes the HER-MAC protocol exploits the channels efficiently. The authors proposed 1-D and 2-D Markov chain models to analyze and evaluate the performance of HER-MAC protocol under nonsaturated conditions in term of packet delivery ratio.…”

Section: Related Workmentioning

confidence: 99%

An Accurate Performance Analysis of Hybrid Efficient and Reliable MAC Protocol in VANET under Non-saturated Conditions

Almohammedi¹,

Noordin²,

Sali³

et al. 2017

IJECE

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Vehicular Ad Hoc Networks (VANETs) is a technology supporting two types of applications, safety and service applications with higher and lower priorities respectively. Thereby, Medium Access Control (MAC) protocol is designed to provide reliable and efficient data broadcasting based on prioritization. Different from the IEEE 1609.4 (legacy), HER-MAC protocol is a new multi-channel MAC proposed for VANETs, offering remarkable performance with regards to safety applications transmission. This paper focuses on the analysis of packet delivery ratio of the HER-MAC protocol under non-saturated conditions. 1-D and 2-D Markov chains have been developed for safety and non-safety applications respectively, to evaluate mathematically the performance of HER-MAC protocol. The presented work has taken into account the freezing of the backoff timer for both applications and the backoff stages along with short retry limit for non-safety applications in order to meet the IEEE 802.11p specifications. It highlights that taking these elements into consideration are important in modeling the system, to provide an accurate estimation of the channel access, and guarantees that no packet is served indefinitely. More precise results of the system packet delivery ratio have been yield. The probability of successful transmission and collisions were derived and used to compute the packet delivery ratio. The simulation results validate the analytical results of our models and indicate that the performance of our models outperformed the existing models in terms of the packet delivery ratio under different number of vehicles and contention window. Keyword:Backoff

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Section: Related Workmentioning

confidence: 99%

An Accurate Performance Analysis of Hybrid Efficient and Reliable MAC Protocol in VANET under Non-saturated Conditions

Almohammedi¹,

Noordin²,

Sali³

et al. 2017

IJECE

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“…Dang et al [30] developed and evaluated a Hybrid Efficient and Reliable MAC for Vehicular Ad hoc Net-works, called HER-MAC, which is similar to the DM-MAC protocol. The goal of this research work is to develop a contention-free Multichannel MAC protocol with an adaptive broadcasting algorithm, which improves data transfer rates for non-safety applications while guaranteeing timely delivery for safety applications in highway scenarios.…”

Section: ) Hybrid Efficient and Reliable Mac (Her-mac) For Vehicularmentioning

confidence: 99%

A Survey and Analysis on TDMA Based MAC Protocols for VANETs

Batth¹

2017

IJRASET

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Vehicular Ad hoc Networks, known as VANETs, are deployed to decrease the probability of road accidents and to improve passenger comfort by allowing vehicles to exchange different kinds of data messages between the mobile vehicles and the installed infrastructure. VANETs facilitate improved traffic safety and efficiency. Each vehicle can exchange information to inform other vehicles about the current status of the traffic flow or a dangerous situation such as an accident. Moreover, traffic safety applications need a reliable communication scheme with minimal transmission collision, which leads to the need for an efficient and reliable MAC. Design MAC for VANETs is a complex task due to the high mobility of the nodes, the frequent changes in topology, the lack of an infrastructure, and various QoS requirements. In the past years, various Time Division Multiple Access (TDMA) based medium access control protocols have been proposed for VANETs in an attempt to assure that all the vehicles have sufficient time to send safety messages with minimum collisions and to reduce the end-to-end delay and the packet loss ratio. In this survey paper a qualitative comparison provided in order to improve the performance of TDMA-based MAC protocols for V2V communication and also focused on the detailed characteristics of these protocols, their benefits and limitations. Keywords: Ad hoc, DSRC, IEEE 802.11p, MAC Protocols, TDMA, QoS, V2V, V2I, VANET. I. INTRODUCTIONVehicular ad hoc networks (VANETs) are emerging as a promising technology for providing safety and comfort applications for vehicular transportation. VANETs are receiving growing attention from the research community and from the transportation industry because of their great potential to improve traffic safety on roads. They can also be used to improve traffic management conditions and to provide on-board infotainment such as Internet access, video streaming, etc. VANETs are an example of Mobile Ad hoc Networks (MANETs) but with their own specification: high node mobility with constrained movements and the mobile nodes have ample energy and computing power (i.e. Storage and processing) [1]. In VANETs, communications can either be between vehicles V2V (Vehicle To Vehicle) or between vehicles and roadside units V2I [2] (Vehicle to Infrastructure). The applications for V2V and V2I can be divided into the following three services: safety services, traffic management and useroriented services [3], [4]. Safety services have special requirements in terms of quality of service. In fact, bounded transmission delays as well as low access delays are mandatory in order to offer the highest possible level of safety. At the same time, useroriented services need a broad bandwidth. Medium Access Control will play an important role in satisfying these requirements. In VANETs, the nodes share a common wireless channel by using the same radio frequencies and therefore an inappropriate use of the channel may lead to collisions and a waste of bandwidth. Hence, channel sharing is the...

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“…For instance, HER-MAC [10] provided a reliable broadcast mechanism of safety message by utilizing service channel in a hybrid scheme using TDMA and CSMA. Other hybrid scheme improved time slots acquisition [11] and provided strict priority for QoS flows compared to best-effort flows [12].…”

Section: Vehicular Ad-hoc Network (Vanet)mentioning

confidence: 99%

Pre-Emptive Traffic Management for a Cluster-Based TDMA System in Vehicular Communications

Prasetya¹,

Sheu²,

Basuki³

et al. 2017

JCC

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The IEEE 802.11p is a standard in a vehicular communication system, known as Wireless Access in Vehicular Environment (WAVE). An implementation of that standard as the MAC Protocol in a high-density of nodes in Vehicular Ad-Hoc Networks (VANETs) may create a performance drawback, in particular for packet loss and delay whenever collisions happen. Introducing Time Division Multiple Access (TDMA) schemes can improve the performance. However, TDMA scheduling is difficult to manage the case of high-density of traffic, the high mobility of vehicles, and dynamic network topology. This journal proposes a clustered-based TDMA by traffic priority in VANETs. The clustered traffic is defined as high and low traffic priority and embedded in TDMA MAC Header. The evaluation result obtained through NS3 Simulator shows that the proposed approach performed better in a high-density of nodes.

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HER-MAC: A Hybrid Efficient and Reliable MAC for Vehicular Ad Hoc Networks

Cited by 63 publications

References 13 publications

An Accurate Performance Analysis of Hybrid Efficient and Reliable MAC Protocol in VANET under Non-saturated Conditions

An Accurate Performance Analysis of Hybrid Efficient and Reliable MAC Protocol in VANET under Non-saturated Conditions

A Survey and Analysis on TDMA Based MAC Protocols for VANETs

Pre-Emptive Traffic Management for a Cluster-Based TDMA System in Vehicular Communications

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