scholarly journals An Integrated Framework for Fog Communications and Computing in Internet of Vehicles

10.29007/c5kn ◽  
2018 ◽  
Author(s):  
Alessio Bonadio ◽  
Francesco Chiti ◽  
Romano Fantacci
Keyword(s):  
Routing Protocols ◽  
Vehicular Networks ◽  
Network Formation ◽  
Integrated System ◽  
P2p Network ◽  
High Fidelity ◽  
The Novel ◽  
Internet Of Vehicles ◽  
Computing Paradigm ◽  
Sensing Application

In this paper, the novel Fog Communications and Computing paradigm is addressed by presenting an integrated system architecture, that is applied to achieve a full con- text awareness for vehicular networks and, consequently, to react on traffic anomalous conditions. In particular, we propose to adopt a specific co-designed approach involving Application and Networks Layers. For the latter one, as no infrastructure usually exists, effective routing protocols are needed to guarantee a certain level of reliability of the in- formation collected from individual vehicles. As a consequence, we investigated classical Epidemic Flooding based, Network Coding inspired and Chord protocols. Besides, we resort to Blockchain principle to design a distributed consensus sensing application. The system has been tested by resorting to OMNeT++ framework for its modularity, high fidelity and flexibility. Performance analysis has been conducted over realistic scenarios in terms of consensus making overhead, latency and scalability, pointing out the better trade-off allowing the overlay P2P network formation and the complete context awareness achieved by the vehicles community.

scholarly journals Trust on the Ratee: A Trust Management System for Social Internet of Vehicles

2017 ◽  
Vol 2017 ◽  
pp. 1-11 ◽  
Author(s):  
Fangyu Gai ◽  
Jiexin Zhang ◽  
Peidong Zhu ◽  
Xinwen Jiang
Keyword(s):  
Trust Management ◽  
Service Discovery ◽  
Vehicular Networks ◽  
The Novel ◽  
Malicious Nodes ◽  
Internet Of Vehicles ◽  
Misleading Information ◽  
Traffic Conditions ◽  
Trust Management System ◽  
Trust Models

The integration of social networking concepts with Internet of Vehicles (IoV) has led to the novel paradigm “Social Internet of Vehicles (SIoV),” which enables vehicles to establish social relationships autonomously to improve traffic conditions and service discovery. There is a growing requirement for effective trust management in the SIoV, considering the critical consequences of acting on misleading information spread by malicious nodes. However, most existing trust models are rater-based, where the reputation information of each node is stored in other nodes it has interacted with. This is not suitable for vehicular environment due to the ephemeral nature of the network. To fill this gap, we propose a Ratee-based Trust Management (RTM) system, where each node stores its own reputation information rated by others during past transactions, and a credible CA server is introduced to ensure the integrality and the undeniability of the trust information. RTM is built based on the concept of SIoV, so that the relationships established between nodes can be used to increase the accuracy of the trustworthiness. Experimental results demonstrate that our scheme achieves faster information propagation and higher transaction success rate than the rater-based method, and the time cost when calculating trustworthiness can meet the demand of vehicular networks.

Architecture and Routing Protocols for Internet of Vehicles: A Review

2022 ◽  
Vol 40 (1/2/3) ◽  
pp. 1
Author(s):  
S. Vimal ◽  
Mohammad Shabaz ◽  
Gaurav Dhiman ◽  
Sparsh Sharma ◽  
Mohd. Naseem ◽  
...  
Keyword(s):  
Routing Protocols ◽  
Internet Of Vehicles

A Self-Contained Architecture for Energy Recovery in Hydraulic Elevators

2014 ◽  
Author(s):  
Oscar Pena ◽  
Michael J. Leamy
Keyword(s):  
Analytical Model ◽  
Electric Motor ◽  
High Fidelity ◽  
The Novel ◽  
Heavy Equipment ◽  
Hydraulic Machines ◽  
Wide Range ◽  
Single Input ◽  
Main Components ◽  
Operation Cycle

This paper presents a novel energy storage and recovery architecture for speed-controlled hydraulic actuation in hydraulic elevators. The study is motivated by a need to increase efficiency in the fluid power industry, in general, and hydraulic elevators, in particular. In contrast to previously employed systems, the proposed architecture eliminates the need for throttling and inefficient energy conversions in electric motor/generators. The system has 6 main components: 1 actuator, 1 hydraulic transformer composed of 2 pump/motors, 2 accumulators, a reservoir or small auxiliary accumulator, and a small auxiliary electric motor to recharge accumulators. By operating in 3 different modes, the system is always able to recapture energy when decreasing actuation speed, and return energy if needed when increasing actuation speed. Assessment of the proposed architecture is accomplished through high-fidelity simulations and a simplified analytical model. The analytical model is derived with the pump/motor displacements as a single input. A heuristic rule-based control is developed to control the high-fidelity simulation through an operation cycle and a comparison to a counterweighted elevator simulation is done to validate energy advantages of the novel system. Preliminary results demonstrate the ability of the system to follow a velocity profile using a single input. Comparison with a conventional counterweighted hydraulic elevator shows a large increase in energy efficiency. It is believed the architecture may have additional applicability to a wide range of hydraulic machines, such as heavy equipment used in construction, manufacturing, forestry, etc.

scholarly journals Comparative Study on Non-delay Tolerant Routing Protocols in Vehicular Networks

2015 ◽  
Vol 50 ◽  
pp. 252-257 ◽  
Author(s):  
Balasubramani ◽  
L. Karthikeyan ◽  
V. Deepalakshmi
Keyword(s):  
Comparative Study ◽  
Routing Protocols ◽  
Vehicular Networks ◽  
Delay Tolerant

scholarly journals Privacy-Preserving Solutions in Blockchain-Enabled Internet of Vehicles

2021 ◽  
Vol 11 (21) ◽  
pp. 9792
Author(s):  
Konstantinos Kaltakis ◽  
Panagiota Polyzi ◽  
George Drosatos ◽  
Konstantinos Rantos
Keyword(s):  
Smart Grids ◽  
Vehicular Networks ◽  
Privacy Preserving ◽  
The Internet ◽  
Data Confidentiality ◽  
Internet Of Vehicles ◽  
Privacy Concerns ◽  
Blockchain Technology ◽  
Future Work ◽  
Critical Overview

Blockchain, a promising technology that has matured and nowadays is widely used in many fields, such as supply chain management, smart grids, agriculture and logistics, has also been proposed for the Internet of Vehicles (IoV) ecosystem to enhance the protection of the data that roadside units and vehicles exchange. Blockchain technology can inherently guarantee the availability, integrity and immutability of data stored in IoV, yet it cannot protect privacy and data confidentiality on its own. As such, solutions that utilise this technology have to consider the adoption of privacy-preserving schemes to address users’ privacy concerns. This paper provides a literature review of proposed solutions that provide different vehicular services using blockchain technology while preserving privacy. In this context, it analyses existing solutions’ main characteristics and properties to provide a comprehensive and critical overview and identifies their contribution in the field. Moreover, it provides suggestions to researchers for future work in the field of privacy-preserving blockchain-enabled solutions for vehicular networks.

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