An Efficient Environmental Channel Modelling in 802.11p MAC Protocol for V2I

2017 ◽  
Vol 7 (2) ◽  
pp. 404
Author(s):  
Neelambike S ◽  
Chandrika J
Keyword(s):  
Environmental Factor ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Traffic Load ◽  
Ieee 802.11P ◽  
Experimental Result ◽  
Characteristic Class ◽  
Intelligent Transport System ◽  
Environmental Model

<p>Recent development in communication of wireless communication for automobile industry have aided the growth of SITS (Smart Intelligent Transport System) which solves numerous vehicular based communication service concerns like traffic congestion, accidental mishap etc. VANET (Vehicular Ad-hoc Network) a characteristic class of MANET (Mobile ad-hoc Network) which is a fundamental element of SITS in which the moving vehicles inter connected and communicates with each other remotely. Wireless technologies play an important part in assisting both Vehicle to Infrastructure (V2I) and Vehicle to Vehicle (V2V) correspondence in VANET. The existing scheduling technique does not consider the environmental factor which affects the throughput performance and increases packet drop rate which result in degradation of service quality. Here in this work the author propose a RHU (Rural, Highway and Urban) environment model considering the environmental factor. The efficient environmental model algorithm is incorporated into slotted aloha in IEEE 802.11p MAC protocols which aided as a spine for assisting both safety application and non-Safety applications. Experiments are conducted for collision and throughput efficiency for varied traffic load and speed of vehicle. The experimental result shows the proposed environmental model impact on collision and throughput efficiency for varied environment and thus helps improving QoS for VANET application.</p>

scholarly journals Classification of Security Attacks in VANET: A Review of Requirements and Perspectives

2018 ◽  
Vol 150 ◽  
pp. 06038 ◽  
Author(s):  
Mohammed Ali Hezam Al Junaid ◽  
A.A. Syed ◽  
Mohd Nazri Mohd Warip ◽  
Ku Nurul Fazira Ku Azir ◽  
Nurul Hidayah Romli
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Vehicular Ad Hoc Network ◽  
Security Requirements ◽  
Intelligent Transport System ◽  
Intelligent Transport ◽  
Security Issues ◽  
Vanet Security

Vehicular Ad Hoc Network (VANET) is a pillar of the envisioned Intelligent Transport System (ITS) and a subset of Mobile Ad Hoc Network that grants the communication in between the vehicles alongside with the absence of established communication infrastructure. Exposure to vulnerabilities of Vehicular Ad-Hoc Network (VANET) has been shown to be related to its nature of the environmental. For this reason, VANET security becomes a critical challenge that need to be resolved. In this paper, we assess the VANET security issues and discuss the challenges in VANET. Equally important, we comparatively review the security requirements, the type of attacks and capabilities of attackers present in VANET.

scholarly journals Capacity Enhancement for the Vehicular Network using Spatial Multiplexing

2018 ◽  
Vol 7 (4.19) ◽  
pp. 772
Author(s):  
Hassan Hadi Saleh ◽  
Saad Talib Hasoon
Keyword(s):  
Road Safety ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Mimo Systems ◽  
Mimo System ◽  
Spatial Multiplexing ◽  
Intelligent Transport System ◽  
Spatial Reuse ◽  
Single Input Single Output

Vehicular Ad hoc Network (VANET) is an advanced system and subcategory of a Mobile Ad hoc Network (MANET), it has as the potential to significantly impact road safety and improve traffic by providing critical information to drivers on critical routes. The system can inform the driver of a local anomaly, which is a very short distance from the sensors. Data from this sensors can be passing between vehicles so as to increase awareness of this environment. Intelligent Transport System (ITS) applications will include traffic efficiency, comfort of driving and road safety. The transaction of warning messages exploits a limited capacity because these applications generate little separate messages. Estimating the capacity of the VANET is therefore essential, as it may limit the deployment or usefulness of these applications. Therefore, an estimate must be made in advance for application design with capacity limitations in mind. VANET capacity is limited mainly through spatial reuse.  Multiple-Input Multiple-Output (MIMO) structures have been suggested to replace the conventional systems. In MIMO systems, a much higher data rate can be achieved than in a VANET environment. The objectives of the paper to study the capacity of the VANET network associated with new promising MIMO technology. Spatial multiplexing (SM),utilizes the spatial dimension to maximizethe capacity of a link without expanding a bandwidth. The SM gain is achieved throughtransmitting signals concurrently on parallel channels spatially with the same frequency. Capacity calculated over VANETs environments with MIMO/SM techniques, using Rayleigh Fading Channel with BPSK modulation. The results of MATLAB simulation package 2017a, indicate the enhancement in the unit of bit per second per Hertz (b/s/Hz). A maximum capacity improvement for MIMO system over Single Input Single Output (SISO) was achieved by using (4 x 4) system, it is about 16.14 b/s/Hz.   

scholarly journals Adaptive MANET Multipath Routing Algorithm Based on the Simulated Annealing Approach

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Sungwook Kim
Keyword(s):  
Simulated Annealing ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Multipath Routing ◽  
Network Routing ◽  
Traffic Load ◽  
Routing Problem ◽  
Routing Scheme ◽  
Mobile Ad Hoc

Mobile ad hoc network represents a system of wireless mobile nodes that can freely and dynamically self-organize network topologies without any preexisting communication infrastructure. Due to characteristics like temporary topology and absence of centralized authority, routing is one of the major issues in ad hoc networks. In this paper, a new multipath routing scheme is proposed by employing simulated annealing approach. The proposed metaheuristic approach can achieve greater and reciprocal advantages in a hostile dynamic real world network situation. Therefore, the proposed routing scheme is a powerful method for finding an effective solution into the conflict mobile ad hoc network routing problem. Simulation results indicate that the proposed paradigm adapts best to the variation of dynamic network situations. The average remaining energy, network throughput, packet loss probability, and traffic load distribution are improved by about 10%, 10%, 5%, and 10%, respectively, more than the existing schemes.

scholarly journals Comparative analysis of power aware routing protocols in mobile ad-hoc network

2018 ◽  
Vol 7 (2.4) ◽  
pp. 170
Author(s):  
Meenu . ◽  
Dr Vivek Jaglan ◽  
Akshat Agrawal
Keyword(s):  
Life Span ◽  
Wireless Ad Hoc Networks ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Traffic Load ◽  
Mobile Nodes ◽  
Total Transmission ◽  
Mobile Ad Hoc ◽  
Hoc Networks

The Mobile Ad-Hoc network is a self-governing wireless network having dynamic topology and scattered mobile nodes. Limited power supply is the major challenge in wireless Ad-Hoc networks. Thus, for overall functioning of the ad-hoc network, efficient power conser-vation mechanism becomes the critical and most important component in ad-hoc network. Various power aware routing mechanism have been evolved to preserve energy, prolonging the life span of its nodes and thus of the network itself. Various other metrics for preserving energy also considered viz. selecting shortest path from source to destination, remaining battery power , fair distribution of traffic load among the nodes and minimizing the total transmission power with a view to increase the network life span and link stability. In this paper, various proposed protocols and recent energy conservation mechanisms are studied for mobile ad-hoc network. After analyzing the existing works it has been observed that there are still several areas where we can give more focus in the future.

scholarly journals ENERGY CONSUMPTION SOLUTION IN MOBILE AD-HOC NETWORK

2020 ◽  
Vol 1 (1) ◽  
pp. 15-24
Author(s):  
Paula e Souza
Keyword(s):  
Energy Consumption ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Average Energy ◽  
Traffic Load ◽  
Packet Delivery ◽  
End To End Delay ◽  
Mobile Ad Hoc ◽  
Average Energy Consumption

The current study was motivated because of higher energy consumption in the current mobile-ad hoc network especially the dynamic system routing. A solution was proposed consisted of nodes energy and traffic load and distance during the route discovery phase. Later, a simulation was performed to make comparison between DSR and MP-DSR. The results states that the proposed MP-DSR outperformed the DSR in all three tests including packet delivery fraction, end-to-end delay, and average energy consumption.

scholarly journals Optimal Exploitation of On-Street Parked Vehicles as Roadside Gateways for Social IoV—A Case of Kigali City

2020 ◽  
Vol 6 (3) ◽  
pp. 73
Author(s):  
Twahirwa Evariste ◽  
Willie Kasakula ◽  
James Rwigema ◽  
Raja Datta
Keyword(s):  
Urban Areas ◽  
Ad Hoc Network ◽  
Network Performance ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Performance Metrics ◽  
Global Market ◽  
Ieee 802.11P ◽  
The Internet ◽  
Radio Communication

Vehicular Ad Hoc Network (VANET) is a subclass of Mobile Ad Hoc Network that mainly consists of moving and/or stationary vehicles, connected through wireless protocols such as IEEE 802.11p and wireless access in vehicular environments (WAVE). With the evolution of the Internet of Things (IoT), ordinary VANET has turned to the Internet of Vehicles (IoV), with additional social aspects, a novel extension themed SIoV has become common in urban areas. However vehicular wireless communication paradigms exhibit short radio communication. This problem has always been approached by supplementing moving vehicles with stationary Road Side Infrastructures, commonly known as roadside units (RSUs). The penetration of such RSUs on the global market is very low; furthermore, their procurement, deployment, and maintenance costs are prohibitively very high. All mentioned challenges have discouraged the widespread deployment of roadside infrastructure especially within large urban scenarios. With this research, we leverage on-street parked vehicles to allow them to exist as temporal gateways in the case study area. A novel modeling technique is introduced to enable a specific Percentage of parked vehicles to take up the role of roadside gateways for a certain percentage of their parking time. A mobile application is implemented that manages parking duration of the vehicle, based on the arrival, and departure time frames. Two more existing strategies were discussed (road-intersection RSUs deployment approach and Inter-vehicle scheme) to validate our proposed method through comparative studies. To evaluate the network performance evaluation, we compare two performance metrics, that is, Packets success delivery rate, and overall packets throughput under numerous vehicle densities. Using parked vehicles as temporal roadside gateways has demonstrated better results in comparison to intersection based RSUs deployment approach, and free vehicle to vehicle communication approach.

scholarly journals Enhancing the throughput of a Node by Handling Congestion in Vanets using Efficient Queue Management

2021 ◽  
Author(s):  
Kamlesh Chandra Purohit ◽  
Sanjay Jasola
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Intelligent Transport System ◽  
Queue Management ◽  
Network Congestion ◽  
Intelligent Transport ◽  
Current Scenario ◽  
Overall Performance ◽  
Mobile Ad Hoc

Abstract Vehicular ad-hoc network (VANET) is one of the most challenging domain in current scenario to provide an Intelligent transport system (ITS). One of the important application area of mobile ad-hoc network (MANET) is VANET. Few major challenges in VANET environment like network congestion, routing and securitywhich must be resolved to provide an efficient service to the user. This paper explores the effect of network layer congestion in the overall performance of VANET and proposes a framework to handle congestion in the VANET by providing efficient queue management. The proposed approach named Node Based Throughput (NBTH) is intended to evaluate the throughput of a node. Method proposed in this paper is being analysed with various parameters like throughput end_to_end delay and packet loss with respect to density of nodes.

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