In Traffic Jam IVC–RVC System for ITS Using Bluetooth

Sugiura, Akihiko; Dermawan, Candra

doi:10.1109/tits.2005.853704

Cited by 29 publications

(7 citation statements)

References 1 publication

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“…Due to the popularity and cheap implements, IEEE 802.11p is the most common candidate for wireless access method of inter and intracommunication among vehicles [21]. There are also references considering Bluetooth [22,23]. These are typical wireless technologies for ad hoc networks and then recommended for VANET.…”

Section: B Research Conditionmentioning

confidence: 99%

Toward mobile Internet‐based layered vehicular networks with efficient access management

Zhang

Wang

2015

Int J Communication

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Vehicular networks have been considered as an important part of realizing the ubiquitous mobile Internet services in the near future. This puts forward the challenge of providing more access opportunities and wireless resources to meet the increasing QoS requirements from various applications. Traditional vehicular ad hoc networks afford the access to Internet by dedicated roadside units. In order to resolve the problems resulting from limited RSUs, insufficient resources and unsatisfied user experience, we propose a layered structure for vehicular networks. The vehicles are virtualized as special vehicular small cells (VSCs) within the first layer and then integrated with the layered heterogeneous networks as the second layer. Furthermore, the access management problem is discussed, and then an optimal access strategy has been designed for VSC to choose the proper roadside infrastructure from several candidates. Evaluation model has been derived with consideration on QoS, handover frequency, moving speed, security, and cost. Simulation results have proved the effectiveness of our proposed scheme from the performance evaluation. Copyright

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Section: B Research Conditionmentioning

confidence: 99%

Toward mobile Internet‐based layered vehicular networks with efficient access management

Zhang

Wang

2015

Int J Communication

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“…The transportation industries spent many years researching the use of wireless technologies to enhance services for motorists [6][7][8][9][10][11][12]. Wireless communication is currently seen as providing the most effective means to send and collect information from moving vehicles.…”

Section: Introductionmentioning

confidence: 99%

Real‐time estimation of travel speed using urban traffic information system and filtering algorithm

Ahn¹,

Ki²,

Kim³

2014

IET Intelligent Transport Systems

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Travel speed is an important parameter for measuring road traffic. urban traffic information system (UTIS) was developed as a mobile detector for measuring link travel speeds in South Korea. However, UTIS incur errors, such as those caused by irregular vehicle trajectories and communication delays. This study describes an algorithm developed for estimating reliable and accurate average roadway link travel speeds using UTIS data. The algorithm estimates link travel times using a robust data-filtering procedure to identify valid observations within a sampling interval using a varying data validity window. The size of the data validity window varies as a function of the standard deviation of observations in previous intervals. A field test showed that the variance of the percent errors of link travel times was reduced when measured using the new model. Therefore it can be concluded that the proposed model significantly improves travel speed measuring accuracy.

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“…Importantly, the self-dependence of VANETs offers two main advantages: ubiquitous information sharing and low implementation costs. Although there are several communication standards that can be used to establish a radio link between vehicles in a VANET such as mobile WiMAX [27], IEEE 802.11b radios [28–30] and Bluetooth [31–33], currently the IEEE 802.11p standard is emerging as the most prominent option. The IEEE 802.11p standard is based on the physical layer (PHY) of the IEEE 802.11a standard.…”

Section: Introductionmentioning

confidence: 99%

Reliable Freestanding Position-Based Routing in Highway Scenarios

Galaviz-Mosqueda

Aquino-Santos

Villarreal-Reyes

et al. 2012

Sensors

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Vehicular Ad Hoc Networks (VANETs) are considered by car manufacturers and the research community as the enabling technology to radically improve the safety, efficiency and comfort of everyday driving. However, before VANET technology can fulfill all its expected potential, several difficulties must be addressed. One key issue arising when working with VANETs is the complexity of the networking protocols compared to those used by traditional infrastructure networks. Therefore, proper design of the routing strategy becomes a main issue for the effective deployment of VANETs. In this paper, a reliable freestanding position-based routing algorithm (FPBR) for highway scenarios is proposed. For this scenario, several important issues such as the high mobility of vehicles and the propagation conditions may affect the performance of the routing strategy. These constraints have only been partially addressed in previous proposals. In contrast, the design approach used for developing FPBR considered the constraints imposed by a highway scenario and implements mechanisms to overcome them. FPBR performance is compared to one of the leading protocols for highway scenarios. Performance metrics show that FPBR yields similar results when considering freespace propagation conditions, and outperforms the leading protocol when considering a realistic highway path loss model.

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In Traffic Jam IVC–RVC System for ITS Using Bluetooth

Cited by 29 publications

References 1 publication

Toward mobile Internet‐based layered vehicular networks with efficient access management

Toward mobile Internet‐based layered vehicular networks with efficient access management

Real‐time estimation of travel speed using urban traffic information system and filtering algorithm

Reliable Freestanding Position-Based Routing in Highway Scenarios

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