Simulation platform for inter-vehicle communications and analysis of periodic information exchange

Schmidt-Eisenlohr, Felix; Torrent-Moreno, Marc; Mittag, Jens; Hartenstein, Hannes

doi:10.1109/wons.2007.340475

Cited by 41 publications

(22 citation statements)

References 11 publications

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“…To analyze the performance, they used the packet latency and throughput as metrics. In [15] the authors chose among others the probability of successful reception, the channel busy time and the channel access time to evaluate the VANET communication. A real world experiment with a fleet of three vehicles was done in [17].…”

Section: Related Workmentioning

confidence: 99%

Performance of CAM based safety applications using ITS-G5A MAC in high dense scenarios

Kloiber

Strang

Röckl

et al. 2011

2011 IEEE Intelligent Vehicles Symposium (IV)

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Abstract-ETSI ITS-G5 is the current vehicle-to-vehicle communication technology in Europe, which will be standardized by ETSI TC ITS 1 . It is based on IEEE 802.11p and therefore uses a CSMA/CA scheme for Media Access Control (MAC). In this paper we analyze the performance of Cooperative Awareness Message (CAM) based safety applications using the ETSI ITS-G5 MAC technology in a challenging scenario with respect to MAC issues: A suitable freeway segment with 6 lanes in each direction. The freeway scenario is thoroughly modeled and implemented in the well known ns-3 simulation environment. Based on this model, the paper shows the performance of CAM based safety applications under MAC challenging conditions. We provide a set of simulation results resting upon a particular performance metric which incorporates the key requirements of safety applications. Finally we analyze two concrete example scenarios to determine how reliable CAM based safety applications are in high dense traffic scenarios with respect to MAC issues.

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Section: Related Workmentioning

confidence: 99%

Performance of CAM based safety applications using ITS-G5A MAC in high dense scenarios

Kloiber

Strang

Röckl

et al. 2011

2011 IEEE Intelligent Vehicles Symposium (IV)

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“…Our work makes use of the modeling process and these methods to achieve high credibility of the models developed. Sophisticated models and frameworks for detailed vehicular packet level simulations with NS-2 are proposed, e.g, in [11], [12] and [13].…”

Section: Related Workmentioning

confidence: 99%

Enabling efficient and accurate large-scale simulations of VANETs for vehicular traffic management

Killat

Schmidt-Eisenlohr

Hartenstein

et al. 2007

Proceedings of the Fourth ACM International Workshop on Vehicular Ad Hoc Networks

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To study the impact of inter-vehicle communications on (vehicular) transport efficiency, e.g., for traffic management purposes, there is a need for efficient and accurate largescale simulations that jointly consider both, the vehicular traffic and the communication system. To overcome the scalability limitations of current discrete event-based network simulators like NS-2, we propose a hybrid simulation approach that can significantly reduce the number of scheduled events by making use of statistical models. Basically, we treat some data traffic, which is not the primary concern of the simulation study, as 'noise' (e.g., beaconing of nodes). While accurately modeling this background traffic we only need to simulate via discrete event-based simulation the actual application we are interested in (e.g., a data dissemination protocol). We outline how the characterization of the background traffic is gained, statistically validated and used. The achievable speed-up is demonstrated in a first application study where a speed funnel is built using inter-vehicle communications. In this scenario, the conservatively estimated speed-up factor is about 500 compared to a pure discrete event-based simulation.

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“…The data rate provided by IEEE 802.11p ranges from 3 to 27 Mbps. The size of beacon messages can reach 2 International Journal of Distributed Sensor Networks more than 800 bytes due to security-related overhead [6]. In dense areas, for instance, with more than several hundred vehicles broadcasting beacon message at a frequency of 10 Hz at once, the channel load can exceed the available bandwidth provided by 802.11p.…”

Section: Introductionmentioning

confidence: 99%

Position Prediction Based Frequency Control of Beacons in Vehicular Ad Hoc Networks

Liu

Wang

2015

International Journal of Distributed Sensor Networks

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In VANETs, frequent beacon broadcasting can lead to high bandwidth consumption and channel congestion. In this paper, a position prediction based beacon approach is proposed to reduce beacon frequency and decrease bandwidth consumption. Vehicles track their neighbors using the predicted position instead of using periodic beacon broadcasting. Only when the prediction error is higher than a predefined tolerance will a beacon broadcasting be triggered. For improving the prediction accuracy, we classify the motion of vehicles into two typical patterns: a constant speed pattern and a maneuvering pattern. A maneuver detection module is responsible for recognizing current motion patterns, and a variable dimension filter that can switch dynamically between the two patterns is employed to generate high accurate position prediction. The simulation results show the proposed scheme can reduce significantly the number of beacons than three existing beacon approaches.

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Simulation platform for inter-vehicle communications and analysis of periodic information exchange

Cited by 41 publications

References 11 publications

Performance of CAM based safety applications using ITS-G5A MAC in high dense scenarios

Performance of CAM based safety applications using ITS-G5A MAC in high dense scenarios

Enabling efficient and accurate large-scale simulations of VANETs for vehicular traffic management

Position Prediction Based Frequency Control of Beacons in Vehicular Ad Hoc Networks

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