Effects of intervehicle spacing distributions on connectivity of VANET: a case study from measured highway traffic

Cheng, Lin; Panichpapiboon, Sooksan

doi:10.1109/mcom.2012.6316781

Cited by 58 publications

(45 citation statements)

References 13 publications

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“…In such networks, the ability to guarantee the delivery of all information from the source nodes to the final destination, e.g., a fusion center, is crucial for their reliability. In particular, there are many applications in different domains (such as smart grids [1], intrusion detection [2], vehicular networks [3], etc.) that demand the existence of a path between any two nodes in the network.…”

Section: Introductionmentioning

confidence: 99%

Connectivity of large-scale WSNs in fading environments under different routing mechanisms

Mekikis¹,

Kartsakli²,

Lalos³

et al. 2015

2015 IEEE International Conference on Communications (ICC)

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Abstract-As the number of nodes in wireless sensor networks (WSNs) increases, new challenges have to be faced in order to maintain their performance. A fundamental requirement of several applications is the correct transmission of the measurements to their final destinations. Thus, it is crucial to guarantee a high probability of connectivity, which characterizes the ability of every node to report to the fusion center. This network metric is strongly affected by both the fading characteristics and the different routing protocols that are used for the dissemination of data. In this paper, we study the probability of a network to be fully connected for two widely employed routing mechanisms, namely unicast and K-anycast. The analytical derivations and the simulations evaluate the trade-offs among the different routing mechanisms and provide useful guidelines on the design of WSNs.

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Section: Introductionmentioning

confidence: 99%

Connectivity of large-scale WSNs in fading environments under different routing mechanisms

Mekikis¹,

Kartsakli²,

Lalos³

et al. 2015

2015 IEEE International Conference on Communications (ICC)

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“…Time headway is defined as the elapsed time of the passage of identical points on two consecutive vehicles [36]. So far numerous probability density distribution models have been proposed to fit the empirical distributions of time headway, including normal distribution, exponential distribution, gamma distribution, and log-normal distribution [37][38][39][40]. The exponential distribution is widely accepted as a very good model for relative long headway.…”

Section: Distribution Of Traffic Flowmentioning

confidence: 99%

Modeling and Analysis of Safety Messages Propagation in Platoon‐Based Vehicular Cyber‐Physical Systems

Qiao

Shi

Chen³

et al. 2018

Wireless Communications and Mobile Computing

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Safety messages propagation is the major task for Vehicular Cyber-Physical Systems in order to improve the safety of roads and passengers. However, reducing traffic and car accidents can only be achieved by disseminating safety messages in a timely manner with high reliability. Although mathematical modeling of the delay of safety messages is extremely beneficial, analyzing the safety messages propagation is considerably complex due to the high dynamics of vehicles. Moreover, most previous works assume vehicles drive independently and the interaction between vehicles is not taken into consideration. In this paper, we proposed an analytical model to describe the performance of safety messages propagation in the VCPSs under platoon-based driving pattern. Infrastructure-less and RSU-supported scenarios are evaluated independently. The analytical model also takes into account different transmission situations and various system parameters, such as communication range, traffic flow, and platoon size. The effectiveness of the analytical model is verified through simulation and the impacts of different parameters on the expected transmission delay are investigated. The results will help determine the system design parameters to satisfy the delay requirement for safety applications in VCPSs.

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“…Usually, it can be used for algorithms concerning clustering forming, relay selection, routing metric, and so forth. To reflect its influence on connectivity, the isolation probability is shown in Figures 8 and 9 based on (17) and (65), where Figure 8 corresponds to the constant radio range case and Figure 9 for the random radio range case. It is noted that in Figure 8, is still the main influential factor to .…”

Section: 2mentioning

confidence: 99%

Connectivity Analysis for Free-Flow Traffic in VANETs: A Statistical Approach

Chen

Pei

et al. 2013

International Journal of Distributed Sensor Networks

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Intervehicle communication gives vehicles opportunities to exchange packets within the limited radio range and self-organized in Ad Hoc manner into VANETs (Vehicular Ad Hoc Networks). However, due to issues such as the high mobility, insufficient market penetration ratio, and lacking of roadside units, connectivity is actually a big problem in VANETs. In addition, relying only on the direct connectivity in most of the previous works, say broadcasting which provides one-hop connections between nodes is far from the continuously growing application demands in VANETs, such as inter-vehicle entertainments, cooperative collision avoidances, and inter-vehicle emergency notifications. Therefore, the indirect connectivity from multihop forwarding is also a necessary complement especially for the case where direct connection is hardly achieved. In this paper, we define a new metric, that is, available connectivity, to consider both direct and indirect connectivity. After analyzing the statistical properties of direct and indirect connectivity in vehicular environment, the available connectivity is proposed and quantified for practical usage. Numerical results show that our available connectivity could provide correct and useful references for protocols design and performance improvements of different applications.

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Effects of intervehicle spacing distributions on connectivity of VANET: a case study from measured highway traffic

Cited by 58 publications

References 13 publications

Connectivity of large-scale WSNs in fading environments under different routing mechanisms

Connectivity of large-scale WSNs in fading environments under different routing mechanisms

Modeling and Analysis of Safety Messages Propagation in Platoon‐Based Vehicular Cyber‐Physical Systems

Connectivity Analysis for Free-Flow Traffic in VANETs: A Statistical Approach

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