Fast multi-hop broadcast of alert messages in VANETs: An analytical model

Bujari, Armir; Conti, Mauro; Francesco, Carla De; Palazzi, Claudio E.

doi:10.1016/j.adhoc.2018.07.024

Cited by 22 publications

(9 citation statements)

References 30 publications

(40 reference statements)

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“…Fracchia and Meo [12], Vinel et al [13], and Tahmasbi-Sarvestani et al [14] were devoted to the one-hop broadcast IEEE 802.11p performance evaluation. Besides, [15] proposed an analytical model for multi-hop alert messages broadcasting. Despite these researches offered some insightful discoveries, the developed models either missed the fatal hidden terminals effect or worked in a multihop fashion.…”

Section: Related Workmentioning

confidence: 99%

Performance Analysis of DSRC-Based Vehicular Safety Communication in Imperfect Channels

Wang

Zhao

2020

IEEE Access

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Vehicle-to-vehicle (V2V) communication empowers vehicles to share information by broadcasting basic and critical safety messages. Dedicated short-range communication (DSRC), the medium access control (MAC) layer of which utilizes the IEEE 802.11p protocol, is a promising candidate technology for vehicular communication. Safety applications usually demand safety message dissemination to be prompt and reliable. To satisfy these strict requirements, the MAC layer of vehicular safety communication tends to adopt Distributed Coordination Function (DCF) or single-class Enhanced Distributed Channel Access (EDCA) without request-to-send/clear-to-send (RTS/CTS), acknowledgment (ACK) and retransmission mechanisms as the access scheme. As far as we know, although many numerical models have been provided to understand the IEEE 802.11 DCF performance, there is no precise model that examines the performance of vehicular safety communication exploiting such an access scheme in imperfect channels with different incoming traffic loads. In this paper, we settle this problem by developing an analytical model where the impacts of various incoming traffic loads, packet length distribution, hidden terminal effects, node mobility, the MAC layer queuing system, and the faulty radio channels are all included which no one has done this before. The experimental and numerical results reveal that the constructed model can exactly forecast the vehicular network performance of packet delay, delivery rate, and reception rate under different traffic and channel circumstances.

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Section: Related Workmentioning

confidence: 99%

Performance Analysis of DSRC-Based Vehicular Safety Communication in Imperfect Channels

Wang

Zhao

2020

IEEE Access

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“…However, the extra computation overhead in probability calculations increases the computational cost of APR. In [14], the authors propose another probabilistic routing protocol to enable fast transmission of warning messages.…”

Section: A Position-based Routingmentioning

confidence: 99%

DABFS: A robust routing protocol for warning messages dissemination in VANETs

Haider

Abbas

et al. 2019

Computer Communications

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Vehicular ad hoc networks play a pivotal role in the enrichment of transportation systems by making them intelligent and capable of avoiding road accidents. For transmission of warning messages, direction-based greedy protocols select the next hop based on the current location of relay nodes towards the destination node, which is an efficient approach for uni-directional traffic. However, such protocols experience performance degradation by neglecting the movement directions of nodes in bi-directional traffic where topological changes occur dynamically. This paper pioneers the use of movement direction and relative positions of source and destination nodes to cater to the dynamic nature of bi-directional highway environments for efficient and robust routing of warning messages. A novel routing protocol, namely, Direction Aware Best Forwarder Selection (DABFS), is presented in this paper. DABFS takes into account directions and relative positions of nodes, besides the distance parameter, to determine a node's movement direction using Hamming distance and forwards warning messages through neighbor and best route discovery. Analytical and simulation results demonstrate that DABFS offers improved throughput and reduced packet loss rate and end-to-end delay, as compared with eminent routing protocols.

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“…Extending communication at multiple hops in highly dynamic and dense environment will further lower the network performance. 15,16 Hidden node and exposed node problems can also be occurred in VANET, which causes to incur packet collisions and introduces additional delays. 17…”

Section: Introductionmentioning

confidence: 99%

An UAV-assisted VANET architecture for intelligent transportation system in smart cities

Raza

Bukhari

Aadil

et al. 2021

International Journal of Distributed Sensor Networks

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Vehicular ad hoc network is a pretty research vibrant area since last decade. It has been successfully used for intelligent transportation system and entertainment purposes for realization of smart cities. However, intermittent connectivity, high routing overhead, inflexible communication infrastructure, unscalable networks, and high packet collision are the key challenges that put hindrances on the wide applications of vehicular ad hoc network. The severity of these challenges become even more intensified when deployed in urban areas. To overcome these hurdles, integrating micro unmanned aerial vehicles with vehicular ad hoc network provides a viable solution. In this article, we proposed an unmanned aerial vehicle–assisted vehicular ad hoc network communication architecture in which unmanned aerial vehicles fly over the deployed area and provide communication services to underlying coverage area. Unmanned aerial vehicle–assisted vehicular ad hoc network avails the advantages of line-of-sight communication, load balancing, flexible, and cost effective deployment. The performance of the proposed model is evaluated against a case study of vehicle collision on highway. Results show that utilization of unmanned aerial vehicles ensures the guaranteed and timely delivery of emergency messages to nearby vehicles so that a safe action can be taken to avoid further damages.

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Fast multi-hop broadcast of alert messages in VANETs: An analytical model

Cited by 22 publications

References 30 publications

Performance Analysis of DSRC-Based Vehicular Safety Communication in Imperfect Channels

Performance Analysis of DSRC-Based Vehicular Safety Communication in Imperfect Channels

DABFS: A robust routing protocol for warning messages dissemination in VANETs

An UAV-assisted VANET architecture for intelligent transportation system in smart cities

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