Connectivity analysis for dynamic movement of vehicular ad hoc networks

Zarei, Mani; Rahmani, Amir Masoud; Samimi, Hossein

doi:10.1007/s11276-015-1189-4

Cited by 34 publications

(23 citation statements)

References 50 publications

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“…The test modeling of the vehicle-to-vehicle lost path in urban, suburban, and highways at 5.8 GHz [17] has been carried out by the definition of free space, where the results are similar to the previous values. In [1], Zarei et al has presented a scheme to analyze the connection for the dynamic motion of wireless vehicular networks that accurately calculated the connection distance for a one-way highway path and proposed a new formula for the time-dependent probability density function (pdf). Also, an analysis of the v2v connection for wireless vehicular networks has been done using mathematical models [18].…”

Section: Analysis Of Connections and Communication In Vanetmentioning

confidence: 99%

“…The previous researches are more about the relationship between the vehicles' connectivity and distance which have been studied in terms of the speed effect, vehicle density, different mobility patterns, radio broadcast range, node rank, connection duration, etc. All of these analyses are effective in the selection of the next hop in routing in order to prevent the path breakage [1]. The routing protocols for VANETs are the main issue of this technology due to the high dynamic nature of the nodes.…”

Section: Introductionmentioning

confidence: 99%

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Presenting an Effective Method to Detect and Track the Broken Path in VANET Using UAVs

Bakhtiari

Oskouei

Soleymani

et al. 2020

Wireless Communications and Mobile Computing

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The routing process in vehicular ad hoc networks (VANETs) is a challenging task in urban areas which is due to the high mobility of vehicles, repetitive defects of the communication path, and the various barriers that may affect the reliability of data transmission and routing. Accordingly, the connectivity in vehicular communications has received the researchers’ attention, so different geographic routing protocols have been proposed in this respect. Unmanned aerial vehicles (UAVs) are useful for overcoming routing constraints. Cloud computing has also been defined as a new infrastructure for VANET which is made up of a significant number of computing nodes including stable data centers as well as a set of mobile computing devices embedded on vehicles. The aim of this research is to simulate a VANET in an urban area using cloud computing infrastructure and applying unmanned aerial vehicles (UAV) so that the negative influence of barriers in packet delivery and routing is avoided. To evaluate, the proposed method is compared with the basic protocol ClouDiV. Ns-2 simulation results show that the proposed method outperforms with different densities and variable times in terms of efficiency and performance.

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Section: Analysis Of Connections and Communication In Vanetmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Presenting an Effective Method to Detect and Track the Broken Path in VANET Using UAVs

Bakhtiari

Oskouei

Soleymani

et al. 2020

Wireless Communications and Mobile Computing

View full text Add to dashboard Cite

show abstract

“…For example, in [2] the authors studied a bidirectional model with two lanes of traffic moving in opposite directions, and they discovered that a phase transition occurs: If the vehicle densities are above a certain threshold, then data propagate dramatically faster than the vehicle speed, whereas below that threshold data propagate with a speed on average equal to the vehicle speed. Similar settings were investigated in [3], [17].…”

Section: Introductionmentioning

confidence: 99%

Analysis of a One-Dimensional Continuous Delay-Tolerant Network Model

Cheliotis

Kontoyiannis

Loulakis

et al. 2018

2018 IEEE 19th International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)

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The packet speed and transmission cost are examined, for a single packet traveling along a simple onedimensional, continuous-time network, using a combination of wireless transmissions and physical transports. We assume that the network consists of two nodes moving at constant speed on a circle, and changing their direction of travel after independent exponential times. The packet wishes to travel in the clockwise direction as fast and as far as possible. It travels either by being physically transported on a node's buffer, or by being wirelessly transmitted to the other node when the two are in the same location. We derive exact, explicit expressions for the long-term average packet speed (in the clockwise direction), and also for the average wireless transmission cost. These results can be viewed as initial steps towards the development of analogous exact expressions for the speed and cost, in more realistic, twodimensional wireless delay-tolerant network models.

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“…Due to the fishing moratorium restrictions and uneven distribution of ports and fishery resources, the ocean vessel has obvious hot spot areas and spatio-temporal correlation characteristic [7] which is different from the traditional VANETs and human handheld device [8,9].…”

mentioning

confidence: 98%

VSTP: vessel spatio-temporal contact pattern detection based on MapReduce

Liu

Sun

Liu

et al. 2017

J Wireless Com Network

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Due to lack of the coverage of 3G/4G network, satellite communication which costs excessively is the main approach used in ocean to provide network service. Ocean mobile delay tolerant network (OMDTN) can provide low-cost data transmission service in the network by utilizing the contact chances of moving vessels. Spatio-temporal contact pattern is one of the key metrics to improve the efficiency of the routing algorithm in OMDTN. Some researches have been carried out on human handheld device and vehicular ad hoc networks (VANETs). However, the vessel's trajectory data is distributed and stored disorderly, which makes traditional contact pattern detection algorithm cannot be directly applied. In this paper, we design a parallel algorithm named VSTP based on MapReduce to detect spatio-temporal contact pattern from trajectories of over 2000 vessels. Studying the vessels' trajectories and the contact records, we observe that the vessels' contact pattern including inter-contact time distribution and contact times distribution is in sharp contrast to the study on human handheld device and VANETs. Our results can provide the guidelines for the design of data routing protocols on OMDTN and give a new solution to overcome the difficulty of ocean network coverage.

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Connectivity analysis for dynamic movement of vehicular ad hoc networks

Cited by 34 publications

References 50 publications

Presenting an Effective Method to Detect and Track the Broken Path in VANET Using UAVs

Presenting an Effective Method to Detect and Track the Broken Path in VANET Using UAVs

Analysis of a One-Dimensional Continuous Delay-Tolerant Network Model

VSTP: vessel spatio-temporal contact pattern detection based on MapReduce

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