QoS supported adaptive and multichannel MAC protocol in vehicular ad-hoc network

Kannan, K. Nattar; Devaraju, M.

doi:10.1007/s10586-018-2149-4

Cited by 9 publications

(3 citation statements)

References 23 publications

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“…Because the backoff process of the three signaling messages in the three-way handshake protocol is independent, the average delay that the three-way handshake protocol needs is: (10) At this point, we can calculate the average duration of the SCH: (11) where T SyncInterval indicates the duration of a synchronization interval, usually equals to 100ms, and N ts indicates the average number of slots in the broadcasting period. N ts and D must be multiplied by the width of the time slot, because the granularity of time in the broadcasting period is t dua1 = 0.3ms, but the granularity of time in the negotiation period is t dua2 = 0.1ms in our proposed scheme.…”

Section: Average Sch Durationmentioning

confidence: 99%

“…In terms of access technology, a vehicle needs to quickly discover neighboring vehicles and establish communication connections with them to exchange vehicle information; therefore, we must design a reasonable access mechanism to allow vehicles to obtain channel resources more efficiently to send messages. Recently, the adaptive MAC protocol has attracted the attention of many scholars and achieved great progress [8]- [11]. In the VANET environment, the network topology of nodes changes rapidly, and the environment that vehicles encounter is often difficult to predict.…”

Section: Introductionmentioning

confidence: 99%

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Distributed Multi-Channel MAC Protocol for VANET: An Adaptive Frame Structure Scheme

Lin

Tang

2019

IEEE Access

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The media access control (MAC) layer of the vehicular ad-hoc network (VANET) is designed to provide fast and reliable vehicles to vehicles (V2V) or vehicles to infrastructures (V2I) access. With the development of autonomous driving and intelligent transportation, many sensor information in large-scale vehicles require efficient and reliable transmission with V2V and V2I technologies. In recent years, the demand for various services in VANETs is growing rapidly, which poses great challenges to the design of the MAC protocol. An adaptive scheme for channel frame structure can enhance channel access flexibility to cope with the changing network topologies in vehicular environments. In this paper, we adopt an adaptive frame scheme on the control channel and the service channels, which mainly improves two aspects of channel access performance: improved time slot utilization of the broadcasting period as much as possible while ensuring the vehicle can access the control channel quickly; and increasing the throughput of the service channels without generating excessive overhead. Analysis and simulation results demonstrate the performance of the proposed mechanism. INDEX TERMS VANET, multi-channel MAC protocol, adaptive frame structure.

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Section: Average Sch Durationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Distributed Multi-Channel MAC Protocol for VANET: An Adaptive Frame Structure Scheme

Lin

Tang

2019

IEEE Access

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“…For various Internet-of-Things (IoT) applications, a massive number of devices are expected to access wireless networks via random access or machine-to-machine (M2M) communication protocols [1], [2]. In order to support such rapidly growing demands, an efficient random access protocol providing enhanced throughput should be essentially developed, which is operated in a distributed and decentralized manner to cope with excessive uplink accesses for future wireless networks [3], [4].…”

Section: Introductionmentioning

confidence: 99%

Online Estimation and Adaptation for Random Access with Successive Interference Cancellation

Jeon¹,

Hu²

2020

Preprint

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This paper proposes an adaptive transmission algorithm for slotted random access systems supporting the successive interference cancellation (SIC) at the access point (AP). When multiple users transmit packets simultaneously in a slot, owing to the SIC technique, the AP is able to decode them through SIC resolve procedures (SRPs), which may occupy multiple consequent slots. While such an SRP could potentially improve the system throughput, how to fully exploit this capability in practical systems is still questionable. In particular, the number of active users contending for the channel varies over time which complicates the algorithm design. By fully exploiting the potential of SIC, the proposed algorithm is designed to maximize the system throughput and minimize the access delay. For this purpose, an online estimation is introduced to estimate the number of active users in real-time and controls their transmissions accordingly. It is shown that the throughput of the proposed algorithm can reach up to 0.693 packets/slot under practical assumptions, which is the first result achieving the throughput limit proved by Yu-Giannakis. It is further shown that the system throughput of 0.559 packets/slot (80.6% of the throughput limit) is still achievable when the SIC capability is restricted by two.

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TDMA-Based MAC Protocols Designed or Optimized Using Artificial Intelligence for Safety Data Dissemination in Vehicular Ad-Hoc Network: A Survey

Ghamri,

Boumerdassi,

Belmeguenai

2023

Lecture Notes in Computer Science

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QoS supported adaptive and multichannel MAC protocol in vehicular ad-hoc network

Cited by 9 publications

References 23 publications

Distributed Multi-Channel MAC Protocol for VANET: An Adaptive Frame Structure Scheme

Distributed Multi-Channel MAC Protocol for VANET: An Adaptive Frame Structure Scheme

Online Estimation and Adaptation for Random Access with Successive Interference Cancellation

TDMA-Based MAC Protocols Designed or Optimized Using Artificial Intelligence for Safety Data Dissemination in Vehicular Ad-Hoc Network: A Survey

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