A Scheduling Algorithm for Beacon Message in Vehicular Ad Hoc Networks

Nacer, Heithem; Mazouzi, Mohamed

doi:10.1007/978-3-319-52941-7_48

Cited by 3 publications

(3 citation statements)

References 8 publications

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“…This can cause warning messages loss on the CCH interval as a consequence of the enlarged transmitting adopted process. Nacer and Mazouzi 29 propose an MAC scheme for the broadcast of beacon messages that adjusts the CCH interval according to the density of vehicles on the road. The number of vehicles calculated and registered by each Road Site Unit will be collected periodically by the control center responsible for calculating the CCH interval, which delays more the transmission process.…”

Section: Related Workmentioning

confidence: 99%

“…In order to evaluate the performance of our HAMAC scheme, we have conducted series of simulations to compare it with the CSMA MAC of the IEEE 802.11p 4 that we aim to optimize its channel access delay, reliability, and adjust its beaconing rate interval according to the density of traffic at the aim of reducing more collisions while maintaining the accuracy of the received neighboring information. HAMAC was compared too to the MAC scheme proposed in Nacer and Mazouzi 29 for the broadcast of beacon messages Scheduling Algorithm for Beacon Message (SABM) and which adjusts the CCH interval according to the density of vehicles on the road in order to ensure reliability while minimizing the transmission delay. In SABM, the number of vehicles calculated and registered by each Road Site Unit will be collected periodically by the control center responsible for calculating the adjusted CCH Interval (100 ms at max) using formula ():

C C H I = N a v e false/ N m a x * S I false(m s e c o n d e false)

where Nave represents the average number of contending vehicles registered by all Road Site Units.…”

Section: Performance Evaluationmentioning

confidence: 99%

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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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Section: Related Workmentioning

confidence: 99%

C C H I = N a v e false/ N m a x * S I false(m s e c o n d e false)

where Nave represents the average number of contending vehicles registered by all Road Site Units.…”

Section: Performance Evaluationmentioning

confidence: 99%

Hybrid adaptive MAC scheme for the broadcast of vehicular safety beacons

Benaidja

2022

Int J Communication

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“…VANET is a subclass of Mobile Ad-hoc Network (MANET) which consists of number of nodes (vehicles) with the capability of communicating with each other without a fixed infrastructure [19]. However, compared to MANET, VANET has an extremely dynamic topology due to high mobility of vehicles.…”

Section: Introductionmentioning

confidence: 99%