Interactive Realistic Simulation of Wireless Networks

Moser, Steffen; Kargl, Frank; Keller, Alexander

doi:10.1109/rt.2007.4342604

Cited by 15 publications

(8 citation statements)

References 16 publications

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“…Such effects can be accurately reproduced by employing one of the many popular full-featured ray-tracing models available in the literature [7], [10]- [12], [14].…”

Section: Related Workmentioning

confidence: 99%

“…It has thus become a well-established fact that realistic path loss models, which also capture effects like shadowing, are crucial to the quality of a wide range of VANET simulations [4]- [9], and it has been demonstrated that ray-tracing approaches can serve as an excellent approximation [6], [7], [10]- [12]. At the same time, however, the cost for preparing such scenarios was demonstrated to be high, sometimes prohibitively so.…”

Section: Introductionmentioning

confidence: 99%

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A computationally inexpensive empirical model of IEEE 802.11p radio shadowing in urban environments

Sommer

Eckhoff

German

et al. 2011

2011 Eighth International Conference on Wireless on-Demand Network Systems and Services

262

154

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Abstract-We present a realistic, yet computationally inexpensive simulation model for IEEE 802.11p radio shadowing in urban environments. Based on real world measurements using IEEE 802.11p/DSRC devices, we estimated the effect that buildings and other obstacles have on the radio communication between vehicles. Especially for evaluating safety applications in the field of Vehicular Ad Hoc Networks (VANETs), stochastic models are not sufficient for evaluating the radio communication in simulation. Motivated by similar work on WiFi measurements, we therefore created an empirical model for modeling buildings and their properties to accurately simulate the signal propagation. We validated our model using real world measurements in a city scenario for different types of obstacles. Our simulation results show a very high accuracy when compared with the measurement results, while only requiring a marginal overhead in terms of computational complexity.

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“…Such effects can be accurately reproduced by employing one of the many popular full-featured ray-tracing models available in the literature [7], [10]- [12], [14].…”

Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A computationally inexpensive empirical model of IEEE 802.11p radio shadowing in urban environments

Sommer

Eckhoff

German

et al. 2011

2011 Eighth International Conference on Wireless on-Demand Network Systems and Services

262

154

View full text Add to dashboard Cite

show abstract

“…Dhoutaut et al [10] propose a simple model that switches between a small number of predefined interference states. Moser et al [11], on the other hand, give a much more accurate model using raytracing that relies on having a detailed model of the environment and requires much greater computational resources to simulate.…”

Section: Related Workmentioning

confidence: 99%

Efficiency analysis of formally verified adaptive cruise controllers

Loos

Witmer

Steenkiste

et al. 2013

16th International IEEE Conference on Intelligent Transportation Systems (ITSC 2013)

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Abstract-We consider an adaptive cruise control system in which control decisions are made based on position and velocity information received from other vehicles via V2V wireless communication. If the vehicles follow each other at a close distance, they have better wireless reception but collisions may occur when a follower car does not receive notice about the decelerations of the leader car fast enough to react before it is too late. If the vehicles are farther apart, they would have a bigger safety margin, but the wireless communication drops out more often, so that the follower car no longer receives what the leader car is doing. In order to guarantee safety, such a system must return control to the driver if it does not receive an update from a nearby vehicle within some timeout period. The value of this timeout parameter encodes a tradeoff between the likelihood that an update is received and the maximum safe acceleration. Combining formal verification techniques for hybrid systems with a wireless communication model, we analyze how the expected efficiency of a provablysafe adaptive cruise control system is affected by the value of this timeout.

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“…This includes modeling of diffraction effects which depend on the presence of sharp edged installations like buildings. An interesting discussion on ray tracing in outdoor urban wireless networks can be found in [16]. Assuming an isotropic antenna, the signal power is projected to an area (the surface of a sphere).…”

Section: Radio Signal Propagation -Assumptions and Modelsmentioning

confidence: 99%