scholarly journals FORESAM—FOG Paradigm-Based Resource Allocation Mechanism for Vehicular Clouds

Sensors ◽  
2021 ◽  
Vol 21 (15) ◽  
pp. 5028
Author(s):  
Rickson Pereira ◽  
Azzedine Boukerche ◽  
Marco A. C. da Silva ◽  
Luis H. V. Nakamura ◽  
Heitor Freitas ◽  
...  

The Intelligent Transport Systems (ITS) has the objective quality of transportation improvement through transportation system monitoring and management and makes the trip more comfortable and safer for drivers and passengers. The mobile clouds can assist the ITS in handling the resource management problem. However, resource allocation management in an ITS is challenging due to vehicular network characteristics, such as high mobility and dynamic topology. With that in mind, we propose the FORESAM, a mechanism for resources management and allocation based on a set of FOGs which control vehicular cloud resources in the urban environment. The mechanism is based on a more accurate mathematical model (Multiple Attribute Decision), which aims to assist the allocation decision of resources set that meets the period requested service. The simulation results have shown that the proposed solution allows a higher number of services, reducing the number of locks of services with its accuracy. Furthermore, its resource allocation is more balanced the provided a smaller amount of discarded services.

Information ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 465 ◽  
Author(s):  
Vasiliy Elagin ◽  
Anastasia Spirkina ◽  
Mikhail Buinevich ◽  
Andrei Vladyko

Over the past decade, wireless communication technologies have developed significantly for intelligent applications in road transport. This paper provides an overview of telecommunications-based intelligent transport systems with a focus on ensuring system safety and resilience. In vehicle-to-everything, these problems are extremely acute due to the specifics of the operation of transport networks, which requires the use of special protection mechanisms. In this regard, it was decided to use blockchain as a system platform to support the needs of transport systems for secure information exchange. This paper describes the technological aspects of implementing blockchain technology in vehicle-to-network; the features of such technology are presented, as well as the features of their interaction. The authors considered various network characteristics and identified the parameters that have a primary impact on the operation of the vehicle-to-network (V2N) network when implementing the blockchain. In the paper, an experiment was carried out that showed the numerical characteristics for the allocation of resources on devices involved in organizing V2N communication and conclusions were drawn from the results of the study.


Proceedings ◽  
2018 ◽  
Vol 2 (19) ◽  
pp. 1232
Author(s):  
Unai Hernandez-Jayo ◽  
Idoia De-la-Iglesia

In the framework of the Internet of Things (IoT) and more specifically the Internet of Vehicles (IoV), vehicles are called upon to play a key role as mobile sensors. Their high mobility and the large amount of electronics they currently deploy allow them to act as mobile information collectors in the places where they circulate. Together with these capabilities, the deployment of communications systems that allow them to share this information will make possible the massive deployment of the so-called Cooperative Intelligent Transport Systems (C-ITS). In this context, this article presents RODEO as a methodology that allows vehicles to use the current mobile communications systems to make V2V (Vehicle to Vehicle) communications, minimizing the number of resources needed. This paper analyses the performance of RODEO (Rrm fOr unDerlay vEhicle cOmmunications) from the perspective of energy performance, understood as the number of bytes transmitted per watt consumed.


Author(s):  
Shivapanchakshari T. G. ◽  
H. S. Aravinda

The growing usage of wireless services is lacking in providing high-speed data communication in recent times. Hence, many of the modulation techniques are evolved to attain these communication needs. The recent researches have widely considered OFDM technology as the prominent modulation mechanism to fulfill the futuristic needs of wireless communication. The OFDM can bring effective usage of resources, bandwidth, and system performance enhancement in collaboration with the smart antenna and resource allocation mechanism (adaptive). However, the usage of adaptive beamforming with the OFDM leads to complication in the design of medium access layer and which causes a problem in adaptive resource allocation mechanism (ARAM). Hence, the proposed manuscript intends to design an OFDM system by considering different switched beam smart antenna (SBSA) along with the cross-layer adaptive resource allocation (CLARA) and hybrid adaptive array (HAA). In this, various smart antenna mechanism are considered to analyze the quality of service (QoS) and complexity reduction in the OFDM system. In this paper, various SA schemes are used as per the quality of service (QoS) requirement of the different users. The performance analysis is conducted by considering data traffic reduction, bit-rate reduction, and average delay.


2019 ◽  
Vol 10 (2) ◽  
pp. 51-60 ◽  
Author(s):  
Oliver Bubelíny ◽  
Irina Ďaďová ◽  
Milan Kubina ◽  
Jakub Soviar

Abstract The possibilities of expanding the transport infrastructure in cities are considerably limited, as urban areas of the municipalities are built-up. The current infrastructure is no longer sufficient to meet standard transport needs in cities, as there has been a growing trend in recent years for both manufactured and sold vehicles. The reason that vehicles are manufactured is the high demand for the purchase of these vehicles, which clearly reflects the subsequent trend of the traveling public using individual transport modes. In individual chapters, this article evaluates the simultaneous use of intelligent transport systems in the Slovak cities and, at the same time, points out further possibilities of SMART elements implementation in transport, which can ensure more efficient transport processes in agglomerations. Given the circumstances that transport infrastructure is no longer sufficient and the vehicles are stationary, which has adverse effects on arrival time as well as on the environment and the quality of life in the cities, the manuscript deals with this issue in particular.


Author(s):  
S. A. Fakhri ◽  
S. A. Fakhri ◽  
M. Saadatseresht

Abstract. Crack is one of the main problems of roads that can reduce the quality of the road or put it in danger in terms of safety. These cracks are needed to be identified first in order to be investigated and followed up. So detecting cracks is one of the most important parts of the road maintenance procedures, which has been considered in recent years. On the other hand, traditional manual methods of crack detection are very time-consuming and dangerous. It is timely because human resources must have thorough and accurate road visits and examine their qualitative status. For this reason, the automatic methods are utilized instead of these methods to increase the speed and reliability of the crack analysis in intelligent transport systems. A simple method is used in this research to detect the crack. Based on the proposed method, a softening filter is applied first on the image to reduce the noise, and then an edge detection filter is applied to the image. Generally, the noise still exists in the image after applying these filters. A window is used here that scans all the image and calculates the average standard deviation for all the pixels in each window, and removes the noise by considering a range. Then the process of removing noise is done with more stringency by reducing the search window in each iteration. Finally, this method was compared with one of the most prominent and modern methods of detecting cracks using a random forest method and the results indicated that despite the simplicity and the speed of the existing method in this study, it has an acceptable performance compared to the manual and random forest methods.


2021 ◽  
Vol 1 (2) ◽  
pp. 7-13
Author(s):  
Darko Špoljar ◽  
Ivan Štajduhar ◽  
Kristijan Lenac ◽  
Renato Filjar

Global Navigation Satellite System (GNSS)-based applications rely on the quality of the GNSS position, navigation, and timing (PNT) services, accomplished through measurement and processing of satellite signals propagation characteristics in a process commonly known as satellite navigation. GNSS positioning performance is in the foundation of the quality of service of GNSS-based applications including the growing number of them in transport, traffic and Intelligent Transport Systems segments, thus a need for a common and independent approach. Here, we propose a novel method for the assessment of the contribution of a single cause to the over-all GNSS positioning error. Proposed method is demonstrated in the case of the GNSS multipath effects, resulting with the experimental predictive model of the direct multipath contribution to GNSS positioning error. The predictive models developed in this research is aimed at deployment in the GNSS positioning performance assessment for GNSS-based applications in transport and telecommunications.


Author(s):  
А.Ю. Иванов ◽  
В.И. Комашинский ◽  
А.Н. Соколов

Внедрение интеллектуальных транспортных систем позволяет перейти на качественно новый уровень решения транспортно-логистических задач произвольного масштаба. Интеллектуализация основана на широком использовании информационно-телекоммуникационных сетей и систем, ориентированных на реализацию передовых и перспективных информационных технологий. В этом аспекте проявляется актуальность и важность построения коммуникационной среды, обеспечивающей передачу разнородного контента с требуемым уровнем качества. Материал статьи сосредоточен на разработке математического аппарата в рамках теории массового обслуживания с целью прогностического анализа характеристик качества обслуживания сообщений в информационно-телекоммуникационной сети водного транспорта. Осуществлена постановка задачи нахождения значений показателей качества обслуживания пакетов данных в сети. Обоснованы и получены основные математические соотношения. Оценена корректность разработанного математического инструментария. Показана возможность решения как прямых, так и обратных задач исследования информационно-телекоммуникационных систем в приведенной постановке. На этом основании сформулированы рекомендации по практическому применению результатов, полученных в статье. The introduction of intelligent transport systems allows you to move to a qualitatively new level of solving transport and logistics problems of any scale. Intellectualization is based on the widespread use of information and telecommunication networks and systems focused on the implementation of advanced and promising information technologies. This aspect demonstrates the relevance and importance of building a communication environment that ensures the transfer of heterogeneous content with the required level of quality. The material of the article is focused on the development of a mathematical apparatus within the framework of the queuing theory for the purpose of predictive analysis of the characteristics of the quality of service of messages in the information and telecommunication network of water transport. The formulation of the problem of finding the values of quality indicators of service of data packets in the network is carried out Basic mathematical relations are substantiated and obtained. The correctness of the developed mathematical tools is assessed. The possibility of solving both direct and inverse problems of researching information and telecommunication systems in the given formulation is shown. On this basis, recommendations were formulated for the practical application of the results obtained in the article.


Author(s):  
Hamid Barkouk ◽  
El Mokhtar En-Naimi

The VANET (Vehicular Ad hoc Network) is a collection of mobile nodes forming a temporary network on variable topology, operating without base station and without centralized administration. Communication is possible between vehicles within each other's radio range as well as with fixed components on road side infrastructure. The characteristics of VANET network that distinguishes it from other ad hoc networks, such as high mobility and communication with the infrastructure to support security or comfort applications, have prompted researchers to develop models and mobility specific protocols. The main goal of this chapter is firstly to compare the performance of three Ad hoc routing protocols: OLSR, AODV and DSDV, and secondly to examine the impact of varying mobility, density and pause time on the functionality of these protocols. The results of this chapter demonstrate that AODV have better performance in terms of Throughput and Packets Delivery Rate (PDR), whereas OLSR have best performance in terms of Packet Delivery Time (Delay).


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