Approaches to Operational Problems in Street and Highway Traffic—A Review

Gerlough, D L; Mathewson, J. H.

doi:10.1287/opre.4.1.32

Cited by 7 publications

(3 citation statements)

References 6 publications

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“…Due to the limited communication area of the vehicles (about 300 m using DSRC), the amount of data the cooperative vehicles carried was decided by the encountering time with the client. According to previous research [17], traffic conforms to Poisson distribution. When λ = 5, up to 20% vehicles can act as the helpers.…”

Section: The Methods Of Cooperative Downloadingmentioning

confidence: 99%

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A Cooperative Downloading Method for VANET Using Distributed Fountain Code

Liu

Zhang

Wang

et al. 2016

Sensors

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Cooperative downloading is one of the effective methods to improve the amount of downloaded data in vehicular ad hoc networking (VANET). However, the poor channel quality and short encounter time bring about a high packet loss rate, which decreases transmission efficiency and fails to satisfy the requirement of high quality of service (QoS) for some applications. Digital fountain code (DFC) can be utilized in the field of wireless communication to increase transmission efficiency. For cooperative forwarding, however, processing delay from frequent coding and decoding as well as single feedback mechanism using DFC cannot adapt to the environment of VANET. In this paper, a cooperative downloading method for VANET using concatenated DFC is proposed to solve the problems above. The source vehicle and cooperative vehicles encodes the raw data using hierarchical fountain code before they send to the client directly or indirectly. Although some packets may be lost, the client can recover the raw data, so long as it receives enough encoded packets. The method avoids data retransmission due to packet loss. Furthermore, the concatenated feedback mechanism in the method reduces the transmission delay effectively. Simulation results indicate the benefits of the proposed scheme in terms of increasing amount of downloaded data and data receiving rate.

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Section: The Methods Of Cooperative Downloadingmentioning

confidence: 99%

“…The range of vehicle speed is set from 60 km/h to 120 km/h. p is defined as the changing speed rate in accordance with log-normal distribution [17]. …”

Section: Performance Evaluationmentioning

confidence: 99%

A Cooperative Downloading Method for VANET Using Distributed Fountain Code

Liu

Zhang

Wang

et al. 2016

Sensors

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show abstract

“…The development of high speed large memory capacity computers have provided means of simulating traffic flow (2,28). At present, this process is limited to only short section of roadways (29,30) or at most to one isolated intersection (31).…”

Section: Theoriesmentioning

confidence: 99%

A Quantitative Evaluation of the Geometric Aspects of Highways

Tharp¹

1962

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of our staff under the direction of Professor M» E, Harr. Mr. Tharp also completed bis work for the PhJ>. degree and utilised the research reported in the attached publication as his thesis, The study reported is au investigation of a quantitative measure of the resistance to the flow of traffic of certain geometric highway features. The mechanistic model considered resulted from the postulate that traffic reacts to a motivating pressure potential -which reaction is reflected in the behavior of the traffic as it traverses the section of highway in which the geometric feature is located. The results of the study reveal that the developed model conforms closely to the observed speeds in the vicinity of geometric features except for highway features which require extreme speed changes.

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Transportation

Robinson

2012

Handbook of Real‐World Applications in Modeling and Simulation

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Approaches to Operational Problems in Street and Highway Traffic—A Review

Cited by 7 publications

References 6 publications

A Cooperative Downloading Method for VANET Using Distributed Fountain Code

A Cooperative Downloading Method for VANET Using Distributed Fountain Code

A Quantitative Evaluation of the Geometric Aspects of Highways

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