Vehicular Networks: From Theory to Practice (Chapman & Hall/CRC Computer and Information Science Series)
Language: English
Pages: 472
ISBN: 1420085883
Format: PDF / Kindle (mobi) / ePub
In spite of their importance and potential societal impact, there is currently no comprehensive source of information about vehicular ad hoc networks (VANETs). Cohesively integrating the state of the art in this emerging field, Vehicular Networks: From Theory to Practice elucidates many issues involved in vehicular networking, including traffic engineering, human factors studies, and novel computer science research.
Divided into six broad sections, the book begins with an overview of traffic engineering issues, such as traffic monitoring and traffic flow modeling. It then introduces governmental and industrial efforts in the United States and Europe to set standards and perform field tests on the feasibility of vehicular networks. After highlighting innovative applications enabled by vehicular networks, the book discusses several networking-related issues, including routing and localization. The following section focuses on simulation, which is currently the primary method for evaluating vehicular networking systems. The final part explores the extent and impact of driver distraction with in-vehicle displays.
Encompassing both introductory and advanced concepts, this guide covers the various areas that impact the design of applications for vehicular networks. It details key research challenges, offers guidance on developing future standards, and supplies valuable information on existing experimental studies.
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Point detectors placed between interchanges may not do a go od job o f characterizing what travelers actually experience as they drive along a road because the congestion at interchanges may not be captured. This problem is even more pronounced on arterial roads, where the influence of traffic signals and vehicles turning in and out of driveways can create significant reductions in average travel speed between midblock sensors. DOTs h ave s hown a g rowing i nterest i n c apturing p erformance d.
Accelerations and decelerations are consistent with the parameter settings a = 1 m/sec2 and b = 2 m/sec2. Notice that the term μ Dv in the dynamic desired distance (2.7) includes an anticipative braking reaction such that the actual deceleration is essentially restricted to the comfortable deceleration parameter b. This means that smaller values of b automatically lead to a higher sensitivity with respect to velocity differences, and to a more anticipatory driving style. We require that, in this.
Ingredients” t hat a re ne arly a lways p resent i n re al-world ( in contrast to ac ademic) situations: (i) a h igh t raffic demand, (ii) a s tationary road inhomogeneity in the form of a bottleneck, and (iii) dynamic perturbations of the traffic flow c aused, f or e xample, b y a n u nexpected b raking o r l ane-changing maneuver, or by trucks overtaking each other. The resulting region of congested traffic is either localized with an almost constant spatial extension of typically less than 1.
S a p romising a nd s calable c oncept f or exchanging t raffic-related i nformation a mong vehicles over rel atively s hort d istances. However, like all technologies relying on local communication, IVC faces the “penetration threshold problem.” Thus, the system is effective only if there is a sufficient number of communication partners to propagate the message between equipped cars. Ther efore, it is crucial to assess the feasibility of different communication variants in terms of the necessary.
Limits on roadside-to-server communication, such as buffering, prioritizing, and possibly probe data aggregation. 3. The inherent unreliability of mobile wireless networks requires a degree of robustness. Packet loss is likely in an environment with nodes traveling at high speeds with l imited r ange, l ine-of-sight o cclusions, a nd r adio f requency ( RF) i nterference. N o app lication c an e xpect to h ave lo ng-lasting, c onsistently a vailable connections. 4. Application messages can be.