Proceedings ArticleDOI
VANET: On Mobility Scenarios and Urban Infrastructure. A Case Study
Gustavo Marfia,Giovanni Pau,Eugenio Giordano,E. De Sena,M. Geria +4 more
- pp 31-36
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TLDR
Assessment of the impact of a range of mobility models on network performance and the performance trend the authors may expect during the day, as urban mobility patterns change are discussed.Abstract:
In [1] we show how vehicles can opportunistically exploit infrastructure through open access points (APs) to efficiently communicate with other vehicles. We also highlight the importance of the use of a correct mobility model, since the advantages that may derive from the use of an infrastructure may not be appreciated because of a lack of accuracy. We continue our study based on realistic vehicular mobility traces of downtown Portland, Oregon, obtained from extremely detailed large scale traffic simulations performed at the Los Alamos National Laboratories (LANL). This mobility model is used to evaluate both flat and opportunistic infrastructure routing. We here build upon [1] and extend that work to: (a) assess the impact of a range of mobility models on network performance and; (b) discuss the performance trend we may expect during the day, as urban mobility patterns change. We here compare results obtained with CORSIM [2] traces and Random Waypoint (RWP) [3] to the results obtained with realistic mobility traces.read more
Citations
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Protocols and architectures for channel assignment in wireless mesh networks
TL;DR: This paper survey and classify the current techniques proposed to solve the problem of efficiently assigning channels in both single-radio and multi-radio wireless mesh networks, and discusses the issues in the design of multi-channel protocols and architectures.
Journal ArticleDOI
Security Games for Vehicular Networks
Tansu Alpcan,Sonja Buchegger +1 more
TL;DR: Security aspects of VANETs are investigated within a game-theoretic framework where defensive measures are optimized with respect to threats posed by malicious attackers and multiple types of security games are studied under varying information availability assumptions for the players.
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Advanced Driver Assistance System for Road Environments to Improve Safety and Efficiency
Felipe Jiménez,Jose E. Naranjo,José Javier Anaya,Fernando García,Aurelio Ponz,José María Armingol +5 more
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VANET Connectivity Analysis
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Proceedings ArticleDOI
Traffic-Known Urban Vehicular Route Prediction Based on Partial Mobility Patterns
TL;DR: This paper defines a mobility pattern as a consecutive series of road segment selections that exhibit frequent appearance along all the itineraries of the vehicle and uses Variable-order Markov Models (VMMs) to mine mobility patterns from the real taxi GPS trace data collected in Shanghai.
References
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Proceedings ArticleDOI
Ad-hoc on-demand distance vector routing
C.E. Perkins,E.M. Royer +1 more
TL;DR: An ad-hoc network is the cooperative engagement of a collection of mobile nodes without the required intervention of any centralized access point or existing infrastructure and the proposed routing algorithm is quite suitable for a dynamic self starting network, as required by users wishing to utilize ad- hoc networks.
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.
Proceedings ArticleDOI
Co-operative downloading in vehicular ad-hoc wireless networks
TL;DR: This paper proposes a "communication efficient" swarming protocol which uses a gossip mechanism that leverages the inherent broadcast nature of the wireless medium, and a piece-selection strategy that takes proximity into account in decisions to exchange pieces, and develops an analytical model to characterize the performance of SPAWN.
Proceedings ArticleDOI
An analysis of the node spatial distribution of the random waypoint mobility model for ad hoc networks
Giovanni Resta,Paolo Santi +1 more
TL;DR: This paper analyzes the node spatial distribution generated by nodes moving according to the random waypoint model, which is widely used in the simulation of mobile ad hoc networks and derives an explicit formula of the one-dimensional node spatial density, and an approximated formula for the two-dimensional case.
Proceedings ArticleDOI
Evaluating vehicle network strategies for downtown Portland: opportunistic infrastructure and the importance of realistic mobility models
TL;DR: This paper introduces realistic vehicular mobility traces of downtown Portland, Oregon, obtained fromextremely detailed large scale traffic simulations performed at the Los Alamos National Laboratories (LANL), among the most accurate synthetic motion traces available for study.