Connectivity in vehicular ad hoc networks in presence wireless mobile base-stations

Yousefi, Saleh; Altmaiv, E.; El-Azouzi, Rachid

doi:10.1109/itst.2007.4295839

Cited by 23 publications

(13 citation statements)

References 13 publications

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“…However, a brief description of the above pdf on vehicle distances applies to our road simulation and traffic plan design. The more general and precise distribution of distances among vehicles has been studied in [35].…”

Section: Highway Mobility Modelmentioning

confidence: 99%

A novel reliable low-latency multipath routing scheme for vehicular ad hoc networks

Abbas

Fan

2018

J Wireless Com Network

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In this paper, the existing ad hoc on demand multipath distance vector (AOMDV) routing scheme for vehicular ad hoc networks (VANETs) is extended to a reliable low-latency multipath routing (RLLMR) scheme based on multipath link reliability, capable of determining the reliable routes preemptively. Here, the link reliability refers to the probability that a direct transmission link among any two vehicles remains constantly available for a specific period of time, which can be computed based on the position, route, and velocity of the vehicles to facilitate the reliable routing process in VANETs. In the proposed RLLMR scheme, the mathematical distribution of vehicles movements and link breakages is also considered to increase the reliability of the vehicular networks. The simulation results show that proposed RLLMR scheme performs better compared to existing schemes in terms of latency, reliability, throughput, and energy consumption at the cost of marginally increased routing overhead.

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Section: Highway Mobility Modelmentioning

confidence: 99%

A novel reliable low-latency multipath routing scheme for vehicular ad hoc networks

Abbas

Fan

2018

J Wireless Com Network

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“…However, this simple presentation of the pdf of vehicles' distance is suitable for our highway mobility model and simulation scenario design. More general and accurate distribution of the distance between vehicles has been investigated in [26].…”

Section: Highway Mobility Modelmentioning

confidence: 99%

Investigation of routing reliability of vehicular ad hoc networks

Eiza

Owens

et al. 2013

J Wireless Com Network

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In intelligent transportation systems, the cooperation between vehicles and the road side units is essential to bring these systems to fruition. Vehicular ad hoc networks (VANETs) are a promising technology to enable the communications among vehicles on one hand and between vehicles and road side units on the other hand. However, it is a challenging task to develop a reliable routing algorithm for VANETs due to the high mobility and the frequent changes of the network topology. Communication links are highly vulnerable to disconnection in VANETs; hence, the routing reliability of these ever-changing networks needs to be paid special attention. In this paper, we propose a new vehicular reliability model to facilitate the reliable routing in VANETs. The link reliability is defined as the probability that a direct communication link between two vehicles will stay continuously available over a specified time period. Furthermore, the link reliability value is accurately calculated using the location, direction and velocity information of vehicles along the road. We extend the well-known ad hoc on-demand distance vector (AODV) routing protocol to propose our reliable routing protocol AODV-R. Simulation results demonstrate that AODV-R outperforms significantly the AODV routing protocol in terms of better delivery ratio and less link failures while maintaining a reasonable routing control overhead.

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“…Note that the existing methods in [1]- [3], [7] consider the connectivity among vehicles that are traveling in same direction only. To improve the connectivity, an extra vehicle is introduced as a mobile base station (BS) in [5], [6] and roadside BSs are used in [9]. It is difficult to introduce a reliable mobile BS in highly dynamic VANET.…”

Section: Introductionmentioning

confidence: 99%

Enhancing connectivity for spectrum-agile Vehicular Ad hoc NETworks in fading channels

Rawat

Shetty

2014

2014 IEEE Intelligent Vehicles Symposium Proceedings

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In Vehicular Ad hoc NETwork (VANET) safety applications, connectivity among vehicles is important to disseminate the upcoming traffic information (e.g., warning messages generated by a source vehicle that detects an accident) to other following vehicles to notify drivers in a timely manner. Because of the highly dynamic VANET topology and the short transmission range mandated for Dedicated Short Range Communication (DSRC) by Federal Communications Commission (FCC), communication links among vehicles are short-lived especially in sparse vehicular density, making the task of establishing (through connection setup process) and maintaining the communications for fast-moving vehicles difficult. Furthermore, when a fixed transmission range is used in dynamically changing VANET, network could be easily suffered by a "broadcast-storm" in dense vehicular density while vehicles in VANET could be disconnected frequently in sparse vehicular density. In addition, when communication channels are overcrowded in VANET, vehicles should be able to switch from one radio frequency (RF) bands to another to make robust communication using spectrum-agile wireless environment. In this paper, we study the connectivity for spectrum-agile VANET in fading channels. Specifically, connectivity enhancement for vehicle-to-vehicle communications for vehicles traveling in opposite directions and for vehicles traveling in same direction is investigated using mathematical analysis and simulation results. Performance of the proposed approach is evaluated using numerical and simulation results.Index Terms-Vehicle-to-vehicle connectivity, connectivity in VANET, spectrum-agile VANET, adaptive VANET.

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Connectivity in vehicular ad hoc networks in presence wireless mobile base-stations

Cited by 23 publications

References 13 publications

A novel reliable low-latency multipath routing scheme for vehicular ad hoc networks

A novel reliable low-latency multipath routing scheme for vehicular ad hoc networks

Investigation of routing reliability of vehicular ad hoc networks

Enhancing connectivity for spectrum-agile Vehicular Ad hoc NETworks in fading channels

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