Time division multiple access scheduling strategies for emerging vehicular ad hoc network medium access control protocols: a survey

Tambawal, Abubakar Bello; Noor, Rafidah Md; Salleh, Rosli; Chembe, Christopher; Anisi, Mohammad Hossein; Oche, Michael; Lloret, Jaime

doi:10.1007/s11235-018-00542-8

Cited by 23 publications

(8 citation statements)

References 81 publications

(75 reference statements)

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“…Thus, the TDMA protocols allocation strategies should take in consideration the mobility features to mitigate the problems of slot collisions. In Tambawal et al, 17 prominent TDMA‐based MAC protocols for vehicular networks were reviewed and compared based on the scheduling technique in solving the existing challenges. 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.…”

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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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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“…Vehicles transmit the messages during the reserved time slots reducing the occurrence of message collision. Authors [17] [18] have proposed dividing the time frame as variable-sized, fixed-sized, and dynamic sized based on the system's requirements. In this paper, a variable-sized time frame division mechanism is proposed for appropriate SCH channel access.…”

Section: B Time Division Multiple Accessmentioning

confidence: 99%

Time-Slot Reservation and Channel Switching Using Markovian Model for Multichannel TDMA MAC in VANETs

Johari

Krishna

2022

IEEE Access

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Efficient communication in the intelligent transport system requires the vehicles to transmit safety and non-safety messages timely without any loss. In multi-channel MAC, SCH channels have different properties in terms of the frequency range, frequency limit, power limit, distance covered, and channel parameters. Based on these channel properties, messages must be transmitted using the most appropriate channel. Existing multi-channel MAC approaches randomly choose the available SCH channel to transmit the messages. Random selection of the channel leads to overuse of the channel resources or lack of the resources due to inappropriate channel selection. The proposed approach provides a way to reserve the most appropriate SCH leading to optimized resource utilization. For collision-free allocation of resources to a large number of contending vehicles, we have proposed a variable size TDMA approach for SCH channel allocation. The paper also focuses on reducing the transmission collision and re-usability of the time slot for timely message transmission. Markovian modeling determines the probability of successfully reserving the time slot and switching to the required SCH. Simulation results prove that the probability of time slot reservation in the required SCH is approximately 0.6 for the proposed approach and approximately 0.2 for other approaches.

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“…This high mobility engenders collisions between nodes that are using the same slots and that move toward each another in addition to access collisions engendered by nodes trying to use the same time slot. Tambawal et al 25 have presented an overview on VANETs proposed TDMA based MAC protocols. 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.…”

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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Time division multiple access scheduling strategies for emerging vehicular ad hoc network medium access control protocols: a survey

Cited by 23 publications

References 81 publications

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

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

Time-Slot Reservation and Channel Switching Using Markovian Model for Multichannel TDMA MAC in VANETs

Hybrid adaptive MAC scheme for the broadcast of vehicular safety beacons

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