Proceedings ArticleDOI
Modeling mobility for vehicular ad-hoc networks
Amit Kumar Saha,David B. Johnson +1 more
- pp 91-92
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TLDR
A new, realistic model of node motion based on the movement of vehicles on real street maps is presented, which is compared with the Random Waypoint mobility model, the most widely used mobility model.Abstract:
Without realistic modeling of node mobility, simulation evaluation of performance of mobile ad hoc networks may not correlate well with performance in a real deployment. In this work, we present a new, realistic model of node motion based on the movement of vehicles on real street maps. Our model can be used with the ns-2 network simulator. We compare our model with the Random Waypoint mobility model, the most widely used mobility model. Results show that, in many ways, the Random Waypoint mobility model is a good approximation for simulating the motion of vehicles on a road, but there are situations in which our new model is better suited.read more
Citations
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Journal ArticleDOI
Vehicular mobility simulation with VanetMobiSim
TL;DR: The traces generated by VanetMobiSim are validated first by illustrating how the interaction between featured motion constraints and traffic generator models is able to reproduce typical phenomena of vehicular traffic, and formally validated against those obtained by TSIS-CORSIM, a benchmark traffic simulator in transportation research.
Journal ArticleDOI
Trustworthy Privacy-Preserving Car-Generated Announcements in Vehicular Ad Hoc Networks
TL;DR: A new system for vehicle-generated announcements is presented that is secure against external and internal attackers attempting to send fake messages, and outperforms previous proposals in message length and computational cost.
Proceedings ArticleDOI
Predictive Directional Greedy Routing in Vehicular Ad hoc Networks
TL;DR: This work proposes a new position-based routing strategy with the consideration of nodes moving direction for VANETs, called DGR (directional greedy routing), which outperform existing ones in terms of packet delivery ratio, end-to-end delay, and routing overhead.
Journal ArticleDOI
Realistic mobility simulation of urban mesh networks
TL;DR: The mobility model discussed here is part of the UDel Models, a suite of tools for realistic simulation of urban wireless networks and most of the aspects of the presented mobility model and model parameters are derived from surveys from urban planning and traffic engineering research.
Journal ArticleDOI
NECPPA: A novel and efficient conditional privacy-preserving authentication scheme for VANET
TL;DR: A new authentication scheme which provides secure communications in VANET is proposed which is a combination of Road Side Unit Based (RSUB) and Tamper Proof Device Based (TPDB) schemes and is much more cost efficient compare to other on-line RSUB schemes.
References
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Dynamic Source Routing in Ad Hoc Wireless Networks.
David B. Johnson,David A. Maltz +1 more
TL;DR: In this article, the authors present a protocol for routing in ad hoc networks that uses dynamic source routing, which adapts quickly to routing changes when host movement is frequent, yet requires little or no overhead during periods in which hosts move less frequently.
Book ChapterDOI
Dynamic Source Routing in Ad Hoc Wireless Networks
David B. Johnson,David A. Maltz +1 more
TL;DR: This paper presents a protocol for routing in ad hoc networks that uses dynamic source routing that adapts quickly to routing changes when host movement is frequent, yet requires little or no overhead during periods in which hosts move less frequently.
Proceedings ArticleDOI
A performance comparison of multi-hop wireless ad hoc network routing protocols
TL;DR: The results of a derailed packet-levelsimulationcomparing fourmulti-hopwirelessad hoc networkroutingprotocols, which cover a range of designchoices: DSDV,TORA, DSR and AODV are presented.
"A Survey of Mobility Models for Ad Hoc Network Research," Wireless Comm. & Mobile Computing (WCMC) : Special issue on Mobile Ad Hoc Networking : Research
TL;DR: A survey of mobility models that are used in the simulations of ad hoc networks and illustrates how the performance results of an ad hoc network protocol drastically change as a result of changing the mobility model simulated.
Journal ArticleDOI
A survey of mobility models for ad hoc network research
TL;DR: In this paper, a survey of mobility models used in the simulations of ad hoc networks is presented, which illustrate the importance of choosing a mobility model in the simulation of an ad hoc network protocol.