scholarly journals Position-based emergency message dissemination for Internet of vehicles

2019 ◽  
Vol 15 (7) ◽  
pp. 155014771986158 ◽  
Author(s):  
Muhammad Ali ◽  
Asad W Malik ◽  
Anis U Rahman ◽  
Sohail Iqbal ◽  
Mian M Hamayun
Keyword(s):  
Vehicular Networks ◽  
Data Dissemination ◽  
High Mobility ◽  
Communication Technologies ◽  
Communication Delays ◽  
Internet Of Vehicles ◽  
Vehicle Communication ◽  
Broadcast Storm ◽  
Vehicle To Vehicle ◽  
Timely Dissemination

With the advancement in communication technologies, Internet of vehicles presents a new set of opportunities to efficiently manage transportation problems using vehicle-to-vehicle communication. However, high mobility in vehicular networks causes frequent changes in network topology, which leads to network instability. This frequently results in emergency messages failing to reach the target vehicles. To overcome this problem, we propose a data dissemination scheme for such messages in vehicular networks, based on clustering and position-based broadcast techniques. The vehicles are dynamically clustered to handle the broadcast storm problem, and a position-based technique is proposed to reduce communication delays, resulting in timely dissemination of emergency messages. The simulation results show that the transmission delay, information coverage, and packet delivery ratios improved up to 14%, 9.7%, and 5.5%, respectively. These results indicate that the proposed scheme is promising as it outperforms existing techniques.

scholarly journals Towards Optimal Dissemination of Emergency Messages in Internet of Vehicles: A Dynamic Clustering-Based Approach

Electronics ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 979
Author(s):  
Nadjet Azzaoui ◽  
Ahmed Korichi ◽  
Bouziane Brik ◽  
Med el Amine Fekair
Keyword(s):  
Road Safety ◽  
Vehicular Networks ◽  
Data Dissemination ◽  
Cluster Head ◽  
High Mobility ◽  
Delivery Ratio ◽  
Dynamic Clustering ◽  
Selection Algorithm ◽  
Internet Of Vehicles ◽  
Broadcast Storm

In this paper, we target dissemination issues of emergency messages in a highly dynamic Internet of Vehicles (IoV) network. IoV is emerging as a new class of vehicular networks to optimize road safety as well as users’ comfort. In such a context, forwarding emergency messages through vehicle-to-vehicle communications (V2V) plays a vital role in enabling road safety-related applications. For instance, when an accident occurs, forwarding such information in real time will help to avoid other accidents in addition to avoiding congestion of network traffic. Thus, dissemination of emergency information is a major concern. However, on the one hand, vehicle density has increased in the last decade which may lead to several issues including message collisions, broadcast storm, and the problem of hidden nodes. On the other hand, high mobility of vehicles and hence dynamic changes of network topology result in failure of dissemination of emergency packets. To overcome these problems, we propose a new dissemination scheme of emergency packets by vehicles equipped with both DSRC and cellular LTE wireless communication capabilities. Our scheme is based on a dynamic clustering strategy, which includes a new cluster head selection algorithm to deal with the broadcast storm problem. Furthermore, our selection algorithm enables not only the election of the most stable vehicles as cluster heads, and hence their exploitation in forwarding the emergency information, but also the avoidance of packet collisions. We simulated our scheme in an urban environment and compared it with other data dissemination schemes. Obtained results show the efficiency of our scheme in minimizing collision and broadcast storm problems, while improving latency, packet delivery ratio and data throughput, as compared to other schemes.

scholarly journals Feasibility Analysis of Vehicle-to-vehicle Communication on Suburban Road

2013 ◽  
Vol 25 (5) ◽  
pp. 483-493 ◽  
Author(s):  
Luoyi HUANG ◽  
Jiao YAO ◽  
Wei WU ◽  
Xiaoguang YANG
Keyword(s):  
Communication System ◽  
High Speed ◽  
Communication Technologies ◽  
Ieee 802.11P ◽  
Received Signal Strength Indicator ◽  
Vehicle Communication ◽  
Dedicated Short Range Communications ◽  
Related Information ◽  
Vehicle To Vehicle ◽  
Vehicle To Vehicle Communication

With the evolution of advanced wireless communication technologies, tremendous efforts have been invested in vehicular networking, particularly the construction of a vehicle-to-vehicle communication system that supports high speed and mobility. In vehicle-to-vehicle communication environment, vehicles constantly exchange information using wireless technology. This paper aims to propose a vehicle-to-vehicle communication system and validate the feasibility of the system on a suburban road in China. Two vehicles were used equipped with IEEE 802.11p based DSRC (Dedicated Short Range Communications) device to construct a vehicle-to-vehicle communication platform. The system architecture consisting of hardware and software was described in details. Then, communication characteristics such as RSSI (Received Signal Strength Indicator), latency and PLR (packet loss rate) were analyzed. Additionally, GPS-related information (such as ground speed and location) was obtained through field test on a suburban road in Shanghai and Taicang City. The test results demonstrate satisfactory performance of the proposed system.

scholarly journals Review on Security of Information Dissemination and Various Protocols in the Internet-of-Vehicles

2019 ◽  
Vol 7 (6) ◽  
pp. 20-24
Author(s):  
Shradha Tembhare ◽  
Abhishek Mishra
Keyword(s):  
Routing Protocols ◽  
Information Dissemination ◽  
Ad Hoc ◽  
High Mobility ◽  
The Internet ◽  
Internet Of Vehicles ◽  
Vehicle To Vehicle ◽  
Data Provision ◽  
Distinct Features

Internet of Vehicles (IoV) is viewed as a developing worldview for associated vehicles to trade their data with different vehicles utilizing vehicle-to-vehicle (V2V) correspondences by framing a vehicular ad-hoc systems (VANETs), with roadside units utilizing vehicle-to-roadside (V2R) interchanges. Performance of this smart ITS mainly owes to the design of efficient routing protocols in VANETs. Distinct features of VANETs like unsteady connectivity, high mobility and partitioning of the network have made routing of the information in VANETs difficult and challenging, hence dictating the development of efficient routing protocols. The computation of the best route measures the performance of communication whereas routing protocols takes care of communication & routing of the data. Provision of smart communication, necessitates the analysis of routing protocols in VANET. Accordingly in this paper, reviewed various types of existing routing protocols and security approaches in VANET are discussed.

scholarly journals Vehicular Bidirectional Internal Antenna with Asymmetric Gain Characteristics to Compensate for Backward Link Path Loss due to Interior Obstacles

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Dong-Woo Kim ◽  
Soon-Soo Oh ◽  
Wook-Ki Park
Keyword(s):  
Wireless Communication ◽  
Continuous Wave ◽  
Path Loss ◽  
Digital Signal ◽  
Communication Technologies ◽  
Vehicle Interior ◽  
Received Signal Strength Indicator ◽  
Vehicle Communication ◽  
Vehicle To Vehicle ◽  
Internal Antenna

Wireless communication technologies are expected to become essential in future self-driving vehicles. This study presents an antenna for vehicle wireless communication with a bandwidth of 75 MHz at a Wireless Access in Vehicular Environment frequency of 5.885 GHz. To compensate for the backward link path loss from the vehicle interior and passengers, the antenna is designed to have asymmetric gains of 0 and 6 dBi at 0° and 180°, respectively. The antenna is validated through an outdoor road test. We measured the received continuous-wave (CW) power, received signal strength indicator, and packet-delivered ratio (PDR) of the digital signal under vehicle-to-vehicle communication mode. Similar power is received in both the backward and forward scenarios. The forward and backward PDR are also similar.

scholarly journals RODEO: A Novel Methodology to Perform V2V Communications in the Scope of Internet of Vehicles. An Energy Performance Analysis

Proceedings ◽  
2018 ◽  
Vol 2 (19) ◽  
pp. 1232
Author(s):  
Unai Hernandez-Jayo ◽  
Idoia De-la-Iglesia
Keyword(s):  
Mobile Communications ◽  
High Mobility ◽  
Energy Performance ◽  
Transport Systems ◽  
The Internet ◽  
Internet Of Vehicles ◽  
Intelligent Transport ◽  
Vehicle To Vehicle ◽  
Communications Systems ◽  
V2v Communications

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.

scholarly journals Routing in Vehicular Networks: Feasibility, Modeling, and Security

2008 ◽  
Vol 2008 ◽  
pp. 1-8 ◽  
Author(s):  
Ioannis Broustis ◽  
Michalis Faloutsos
Keyword(s):  
Architectural Design ◽  
Vehicular Networks ◽  
Ad Hoc ◽  
High Mobility ◽  
Transportation Systems ◽  
Network Architectures ◽  
Network Partitioning ◽  
Vehicle To Vehicle ◽  
Vehicle Ad Hoc Networks ◽  
Hoc Networks

Vehicular networks are sets of surface transportation systems that have the ability to communicate with each other. There are several possible network architectures to organize their in-vehicle computing systems. Potential schemes may include vehicle-to-vehicle ad hoc networks, wired backbone with wireless last hops, or hybrid architectures using vehicle-to-vehicle communications to augment roadside communication infrastructures. Some special properties of these networks, such as high mobility, network partitioning, and constrained topology, differentiate them from other types of wireless networks. We provide an in-depth discussion on the important studies related to architectural design and routing for such networks. Moreover, we discuss the major security concerns appearing in vehicular networks.

scholarly journals Broadcasting in Connected and Fragmented Vehicular Ad Hoc Networks

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Sara Najafzadeh ◽  
Norafida Binti Ithnin ◽  
Shukor Abd Razak
Keyword(s):  
Ad Hoc Networks ◽  
Vehicular Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Dissemination ◽  
Broadcast Storm ◽  
Hoc Networks

This paper starts with an overview of vehicular ad hoc networks (VANETs) and their characteristics. Then this paper reviews diverse applications of VANETs and the requirements of these applications. In addition it reviews VANETs standards, different broadcasting presented in a variety of studies, and also associated issues with data dissemination in connected and fragmented vehicular networks to solve broadcast storm problem and temporary disconnected VANETs. The discussion will be about the encountered challenges and presented solutions with respect to the related issues, based on the literature and strength and weakness of each protocol.

scholarly journals The Role of Communication Technologies in Vehicular Applications

2010 ◽  
pp. 37-58
Author(s):  
Yacine Khaled ◽  
Manabu Tsukada ◽  
José Santa ◽  
Thierry Ernst
Keyword(s):  
Vehicular Networks ◽  
High Mobility ◽  
Communication Technologies ◽  
Vehicular Network ◽  
Design Stage ◽  
Key Factors ◽  
Network Layers ◽  
Application Requirements ◽  
Research World

Vehicular networks attract a lot of attention in the research world. Novel vehicular applications need a suitable communication channel in order to extend in-vehicle capabilities and, be aware of surrounding events. However, these networks present some peculiarities, such as high mobility or specific topologies. These features affect the performance of applications; hence, more effort should be directed to identify the final necessities of the network. Few works deal with application requirements that should be considered when vehicular services are designed. In this chapter this gap is filled, proposing an analysis of application requirements mapped with suitable communication technologies for physical/MAC and network layers. This study contains key factors that must be taken into account not only at the design stage of the vehicular network, but also when applications are evaluated.

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