Review of MAC Protocols for Vehicular Ad Hoc Networks

Ma, Mengyuan; Liu, Kai; Luo, Xiling; Zhang, Tao; F, Liu

doi:10.3390/s20236709

Cited by 23 publications

(17 citation statements)

References 77 publications

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“…It works in two frequency bands, 5 GHz using the OFDM mechanism. In the second case, communication works in the range of 5.9 GHz divided into smaller operation channels named from A to D. Version A works with the frequency of 30 MHz for safety messages, version B with the frequency of 20 MHz for non-safety messages and version C works revision, which merged the channels 174 and 176 into the channel 175 and the channels 180 and 182 into the channel 181 [26]. The mentioned spectrum can be seen in Figure 4.…”

Section: Physical and Mac Layermentioning

confidence: 99%

Vehicle-to-Everything Communication

Špitálová¹

2023

Communications

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With an increasing number of vehicles, there is a need for reliable and secure communication between subjects participating in the dynamic traffic environment. This kind of communication is called V2X (Vehicle-to-Everything). It can also contribute to higher level of autonomous driving. The V2X model operation is enabled by use of the newest technologies and standards, defined by 3GPP Organization. In this paper, a review of the V2X communication models, available technologies and standards are studied.

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Section: Physical and Mac Layermentioning

confidence: 99%

Vehicle-to-Everything Communication

Špitálová¹

2023

Communications

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“…The authors have noted that the mobility features of VANETs is not well considered and the merging collision issue is not well addressed which resulted in a high delay and packet loss. Ma et al 18 have presented a thorough review of MAC protocols designed for VANETs by classifying them into single and multichannel MAC protocols, which are further divided into distributed and centralized MAC protocols while comparing their typical protocols. They have founded that no current MAC protocol can solve simultaneously the problems of fairness, low latency, and high reliability while considering the high dynamic network topology changes.…”

Section: Related Workmentioning

confidence: 99%

Colored scheduling scheme for fast and reliable beacon safety messages broadcast in vehicular ad‐hoc networks

Benaidja

2022

Int J Communication

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Summary The beacon transmission method in vehicular networks has to consider the mobility feature of vehicles and use the wireless channel more efficiently in order to broadcast safety‐related beacons with high reliability while respecting strict deadlines. The time division multiple access (TDMA) scheme has been proposed to improve the effectiveness of the IEEE 802.11p CSMA MAC protocol, but it is challenged with access and merging collisions caused by inefficient strategies in allocating time slots and mobile hidden terminal problems. In this paper, we propose colored velocity‐based TDMA (CVTDMA), an original colored scheduling scheme for the broadcast of safety beacons on the control channel. Based on vehicles speed and colors that it assigns to time slots according to their occupation statuses, it mitigates the mobility effect and maximizes the reuse of slots while avoiding collisions. The simulation results show that our protocol uses the wireless channel much more effectively than the default one defined in IEEE 802.11p.

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“…They have concluded that their scheduling techniques proposed to overcome the challenges mentioned above didn't provide an effective solution to the problem of high mobility that delays and degrades the deliverance of warning messages. MAC schemes proposed for vehicular networks have been reviewed and compared in Ma et al, 26 and it was concluded that they cannot provide fairness, predictable delays, and good reliability all together while regarding the frequent topology changes.…”

Section: Related Workmentioning

confidence: 99%

Hybrid adaptive MAC scheme for the broadcast of vehicular safety beacons

Benaidja

2022

Int J Communication

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Vehicular safety applications are based on broadcasting periodic safety beacons on the IEE802.11p control channel. The CSMA MAC scheme adopted in the IEE802.11p cannot ensure the strict timeline and the high reliability when broadcasting these real time and critical messages since it does not consider the high mobility of vehicles, the limited network resources, and the variant traffic densities. Therefore, the design of an effective MAC scheme that takes in consideration these parameters represents a challenging task. Furthermore, the fixed beaconing rate results an overload on the commination channel and collisions especially in dense situations that delay beacons broadcast. In this paper, we propose a novel hybrid MAC scheme for fast and reliable broadcast of safety beacons. At first, it relies on a time slot reuse policy that considers the mobility features of vehicles while reducing transmission collisions. In addition, it adapts mathematically the beaconing rate to the traffic density based on vehicular velocity at the aim of optimizing the performance of the wireless channel. Simulation results show that our proposal outperforms significantly the IEEE802.11p CSMA MAC scheme and upgrades the performance of vehicular networks in broadcasting periodic safety beacons.

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Review of MAC Protocols for Vehicular Ad Hoc Networks

Cited by 23 publications

References 77 publications

Vehicle-to-Everything Communication

Vehicle-to-Everything Communication

Colored scheduling scheme for fast and reliable beacon safety messages broadcast in vehicular ad‐hoc networks

Hybrid adaptive MAC scheme for the broadcast of vehicular safety beacons

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