scholarly journals PBeiD Priority-based Information Dissemination Protocol for V2V Communication

2021 ◽  
Author(s):  
Ravi Tomar ◽  
Hanumat G Sastry ◽  
Manish Prateek
Keyword(s):  
Information Exchange ◽  
Vehicular Networks ◽  
Information Dissemination ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Vital Role ◽  
Network Partition ◽  
Broadcast Storm ◽  
V2v Communication ◽  
Efficient Information

Abstract In Vehicular Ad-hoc Networks (VANET)s, efficient information dissemination plays a vital role in its successful deployment. Broadcasting has proven as one of the better ways for Information Dissemination over vehicular Networks, and cooperative behaviour among vehicles for information exchange is critical. However, the existing broadcast techniques are still suffering from multiple issues such as Broadcast storm problem, network partition problem, and network contention. Motivated from the aforementioned discussion, in this paper, we propose a Priority-based Efficient Information Dissemination Protocol (PBeiD) to improve the broadcast efficiency in VANETs. PBeiD protocol developed with a blend of probability and density-based information dissemination concepts and implemented in the testbed environment using simulation tools consisting of SUMO, OMNET++, and VEINS. The proposed protocol is compared with benchmark protocols, and the simulation is carried out based on different scenarios from sparse to dense. We found that our protocol is performing well in almost all the cases and to provide proper justification that our results are significant and not by chance, we applied statistical t-test on the results obtained.

scholarly journals Evaluation of Content Dissemination Strategies in Urban Vehicular Networks

Information ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 163 ◽  
Author(s):  
Gonçalo Pessoa ◽  
Lucas Guardalben ◽  
Miguel Luís ◽  
Carlos Senna ◽  
Susana Sargento
Keyword(s):  
Vehicular Networks ◽  
Information Dissemination ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Superior Performance ◽  
Content Dissemination ◽  
Parking Lot ◽  
Hoc Networks ◽  
New Applications ◽  
Safety Applications

The main drivers for the continuous development of Vehicular ad-hoc Networks (VANETs) are safety applications and services. However, in recent years, new interests have emerged regarding the introduction of new applications and services for non-urgent content (e.g., videos, ads, sensing and touristic information) dissemination. However, there is a lack of real studies considering content dissemination strategies to understand when and to whom the content should be disseminated using real vehicular traces gathered from real vehicular networks. This work presents a realistic study of strategies for dissemination of non-urgent content with the main goal of improving content delivery as well as minimizing network congestion and resource usage. First, we perform an exhaustive network characterization. Then, several content strategies are specified and evaluated in different scenarios (city center and parking lot). All the obtained results show that there are two content distribution strategies that clearly set themselves apart due to their superior performance: Local Rarest Bundle First and Local Rarest Generation First.

scholarly journals Multistate Active Combined Power and Message/Data Rate Adaptive Decentralized Congestion Control Mechanisms for Vehicular Ad Hoc Networks

2022 ◽  
Vol 2161 (1) ◽  
pp. 012018
Author(s):  
M Deeksha ◽  
Ashish Patil ◽  
Muralidhar Kulkarni ◽  
N. Shekar V. Shet ◽  
P. Muthuchidambaranathan
Keyword(s):  
Ad Hoc Networks ◽  
Congestion Control ◽  
Information Exchange ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Data Rate ◽  
Control Mechanisms ◽  
Rate Adaptive ◽  
Efficient Information ◽  
Hoc Networks

Abstract Vehicular ad hoc networks (VANETs) have emerged in time to reduce on-road fatalities and provide efficient information exchange for entertainment-related applications to users in a well-organized manner. VANETs are the most instrumental elements in the Internet of Things (IoT). The objective lies in connecting every vehicle to every other vehicle to improve the user’s quality of life. This aim of continuous connectivity and information exchange leads to the generation of more information in the medium, which could congest the medium to a larger extent. Decentralized congestion control (DCC) techniques are specified to reduce medium congestion and provide various safety applications. This article presents two DCC mechanisms that adapt message rate and data rate combined with transmit power control mechanism. These mechanisms are developed under multi-state active design proposed by the standard. The proposed methods deliver better performance over other mechanisms in terms of power, channel load, and channel utilization using real-time-based scenarios by simulation in SUMO.

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 VEHICLE ADHOC NETWORK FOR INTELLIGENT VEHICLE COMMUNICATION SYSTEM .

2020 ◽  
Vol 9 (6) ◽  
pp. 12-15
Keyword(s):  
Vehicular Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Initial Position ◽  
Cross Layer ◽  
Cross Layer Design ◽  
Intermediate Node ◽  
V2v Communication ◽  
Greedy Forwarding ◽  
Store And Forward

Vehicular Ad-hoc Networks (VANETs), which considers both buses and cars as vehicular nodes running in both clockwise and anti-clockwise directions. It is a hybrid protocol, uses both the greedy forwarding approach and the carry-store-and-forward approach to ensure the connectivity of the routes. Our solution to situations, when the network is sparse and when any (source or intermediate) node left its initial position, makes this protocol better in city scenarios. We only consider Vehicle to-Vehicle (V2V) communication in which both the source and destination nodes are moving vehicles. The paradigm of cross-layer design has been introduced as an alternative to pure layered design to develop communication protocols. Cross-layer design allows information to be exchanged and shared across layer boundaries in order to enable efficient and robust protocols. There has been several research efforts that validated the importance of cross-layer design in vehicular networks.

scholarly journals Analysing the Performance of SDN/Open Flow Controllers in VANET

2020 ◽  
Vol 9 (1) ◽  
pp. 2268-2273
Keyword(s):  
Performance Evaluation ◽  
Ad Hoc Networks ◽  
Vehicular Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Average Delay ◽  
V2v Communication ◽  
Integrated Technology ◽  
And Performance ◽  
Hoc Networks

One of the key enablers of the evolving 5G technology are Vehicular Ad hoc Networks (VANETs) and Software Defined Networking (SDN). The development of next generation intelligent vehicular networks includes integration of SDN in Vehicular Ad hoc Networks (VANETs). Researchers have focused on the development of the integrated technology including architecture and benefits of SDN based VANET services. In this paper we have simulated the Vehicular Ad hoc Networks (VANETs) using Mininet-wifi. The VANET is incorporated with SDN controller. The performance is evaluated by varying the speed of vehicles. We have evaluated the performance in two ways: performance evaluation of V2V communication in same RSU and performance evaluation of V2V communication from different RSU. We have evaluated the proposed system for POX and RYU SDN OpenFlow controllers. As demonstrated in the results the RYU controller of SDN performs better as compared to POX controller in terms of average delay and throughput.

scholarly journals Intelligent Information Dissemination Scheme for Urban Vehicular Ad Hoc Networks

2015 ◽  
Vol 2015 ◽  
pp. 1-11
Author(s):  
Jinsheng Yang ◽  
Changqing Liu ◽  
Shih-Lin Wu
Keyword(s):  
Ad Hoc Networks ◽  
Information Dissemination ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Information Source ◽  
Broadcast Storm ◽  
Parking Lot ◽  
Intelligent Information ◽  
Hoc Networks ◽  
Routing Tree

In vehicular ad hoc networks (VANETs), a hotspot, such as a parking lot, is an information source and will receive inquiries from many vehicles for seeking any possible free parking space. According to the routing protocols in literature, each of the vehicles needs to flood its route discovery (RD) packets to discover a route to the hotspot before sending inquiring packets to the parking lot. As a result, the VANET nearby an urban area or city center may incur the problem ofbroadcast stormdue to so many flooding RD packets during rush hours. To avoid the broadcast storm problem, this paper presents ahotspot-enabledrouting-tree based data forwarding method, called the intelligent information dissemination scheme (IID). Our method can let the hotspot automatically decide when to build the routing-tree for proactive information transmissions under the condition that the number of vehicle routing discoveries during a given period exceeds a certain threshold which is calculated through our developed analytical packet delivery model. The routing information will be dynamically maintained by vehicles located at each intersection near the hotspot if the maintaining cost is less than that of allowing vehicles to discover routes themselves. Simulation results show that this method can minimize routing delays for vehicles with lower packets delivery overheads.

scholarly journals Trustworthy Event-Information Dissemination in Vehicular Ad Hoc Networks

2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Rakesh Shrestha ◽  
Seung Yeob Nam
Keyword(s):  
Vehicular Networks ◽  
Information Dissemination ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Truth Telling ◽  
The Road ◽  
Trust Level ◽  
Event Information ◽  
On The Road ◽  
Hoc Networks

In vehicular networks, trustworthiness of exchanged messages is very important since a fake message might incur catastrophic accidents on the road. In this paper, we propose a new scheme to disseminate trustworthy event information while mitigating message modification attack and fake message generation attack. Our scheme attempts to suppress those attacks by exchanging the trust level information of adjacent vehicles and using a two-step procedure. In the first step, each vehicle attempts to determine the trust level, which is referred to as truth-telling probability, of adjacent vehicles. The truth-telling probability is estimated based on the average of opinions of adjacent vehicles, and we apply a new clustering technique to mitigate the effect of malicious vehicles on this estimation by removing their opinions as outliers. Once the truth-telling probability is determined, the trustworthiness of a given message is determined in the second step by applying a modified threshold random walk (TRW) to the opinions of the majority group obtained in the first step. We compare our scheme with other schemes using simulation for several scenarios. The simulation results show that our proposed scheme has a low false decision probability and can efficiently disseminate trustworthy event information to neighboring vehicles in VANET.

scholarly journals A Cooperative Communication Protocol for QoS Provisioning in IEEE 802.11p/Wave Vehicular Networks

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3622 ◽  
Author(s):  
Jin-Woo Kim ◽  
Jae-Wan Kim ◽  
Dong-Keun Jeon
Keyword(s):  
Cooperative Communication ◽  
Vehicular Networks ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Communication Protocol ◽  
Ieee 802.11P ◽  
The Road ◽  
Free Data ◽  
On The Road ◽  
Hoc Networks

Vehicular ad hoc networks (VANETs) provide information and entertainment to drivers for safe and enjoyable driving. Wireless Access in Vehicular Environments (WAVE) is designed for VANETs to provide services efficiently. In particular, infotainment services are crucial to leverage market penetration and deployment costs of the WAVE standard. However, a low presence of infrastructure results in a shadow zone on the road and a link disconnection. The link disconnection is an obstacle to providing safety and infotainment services and becomes an obstacle to the deployment of the WAVE standard. In this paper, we propose a cooperative communication protocol to reduce performance degradation due to frequent link disconnection in the road environment. The proposed protocol provides contention-free data delivery by the coordination of roadside units (RSUs) and can provide the network QoS. The proposed protocol is shown to enhance throughput and delay through the simulation.

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