A Roadside Unit Placement Scheme for Vehicular Telematics Networks

Lee, Junghoon; Kim, Cheol Min

doi:10.1007/978-3-642-13577-4_17

Cited by 79 publications

(59 citation statements)

References 8 publications

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“…Lee and Kim [7] proposed a roadside unit placement scheme for vehicular networks, aiming at improving connectivity and reducing the disconnection interval for the given number of roadside units, the transmission range, and the overlap ratio on the road network of Jeju island. Performance measurement results obtained using the real-life movement history data in Jeju city showed that about 72.5% of connectivity can be achieved when deploying 1,000 RSUs, being the transmission range 300 m, while the disconnection time is mostly kept below 10 seconds.…”

Section: Introductionmentioning

confidence: 99%

Road Side Unit Deployment: A Density-Based Approach

Barrachina

Garrido

Fogue

et al. 2013

IEEE Intell. Transport. Syst. Mag.

130

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Currently, the number of vehicles increases every year, raising the probability of having accidents. When an accident occurs, wireless technologies enable vehicles to share warning messages with other vehicles by using vehicle to vehicle (V2V) communications, and with the emergency services by using vehicle to infrastructure (V2I) communications. Regarding vehicle to infrastructure communications, Road Side Units (RSUs) act similarly to wireless LAN access points, and can provide communications with the infrastructure. Since RSUs are usually very expensive to install, authorities limit their number, especially in suburbs and areas of sparse population, making RSUs a precious resource in vehicular environments. In this paper, we propose a Density-based Road Side Unit deployment policy (D-RSU), specially designed to obtain an efficient system with the lowest possible cost to alert emergency services in case of an accident. Our approach is based on deploying RSUs using an inverse proportion to the expected density of vehicles. The obtained results shows how D-RSU is able to reduce the required number of RSUs, as well as the accident notification time. Index TermsVehicular networks, Road Side Unit, vehicle-to-infrastructure communication, road safety.

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Section: Introductionmentioning

confidence: 99%

Road Side Unit Deployment: A Density-Based Approach

Barrachina

Garrido

Fogue

et al. 2013

IEEE Intell. Transport. Syst. Mag.

130

View full text Add to dashboard Cite

show abstract

“…The authors identify that roadside infrastructure should be placed at intersections rather than the middle of road segment. While the above studies are based on simulation data, a realistic trace of traffic is used to evaluate different schemes for RSU placement in [12]. The authors use a greedy algorithm to determine the minimum number and locations of RSUs that can serve all vehicles in Jeju city, Korea.…”

Section: B Simulation Resultsmentioning

confidence: 99%

Cars as Roadside Units: A Cooperative Solution

Viriyasitavat

Tonguz

2012

2012 IEEE Vehicular Technology Conference (VTC Fall)

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Abstract-The gradual penetration of Dedicated Short Range Communications Radio (DSRC) technology in the years to come is a formidable problem that could adversely effect the implementation of safety and non-safety applications. In this paper, we propose a solution that might mitigate the negative impact of the partial and gradual penetration problem of DSRC technology. The proposed solution is based on a self-organizing network paradigm that draws its inspiration from biological systems, such as social insect colonies [1]. By designing the local rules and a distributed algorithm needed to perform this function, it is shown that DSRC-equipped cars can indeed serve as RSUs. Results show that the message reachability and connectivity in urban vehicular networks can be increased substantially in a cost-effective manner as the proposed approach does not entail deployment of infrastructure-based RSUs.

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“…RSE (Roadside Equipment) 9,10 and OBU (On-Board Unit) 11,12 with electric generators employ the way to use the independent communication channel; one RSE supports multiple connections of OBUs and reuses frequency, with which a transmitter with the output power of 10mW can secure communication area 13 . As it secures high success rate of communication and high speed mobility, it has been used for a traffic information collection system such as the bus information system.…”

Section: Dsrc (Dedicated Short Range Communication)mentioning

confidence: 99%