scholarly journals Localization of multiple jamming attackers in vehicular ad hoc network

2017 ◽  
Vol 13 (8) ◽  
pp. 155014771772569 ◽  
Author(s):  
Liang Pang ◽  
Xiao Chen ◽  
Yong Shi ◽  
Zhi Xue ◽  
Rida Khatoun
Keyword(s):  
Ad Hoc Network ◽  
Network Performance ◽  
Ad Hoc ◽  
Vehicular Ad Hoc Network ◽  
Urban Traffic ◽  
Jamming Attacks ◽  
Data Set ◽  
Fuzzy C Means ◽  
Accurate Localization ◽  
Locating Information

In vehicular ad hoc network, wireless jamming attacks are easy to be launched in the control channel and can cause serious influence on the network performance which may cause further safety accidents. In order to address the issue of wireless jamming attacks, a new technique which localizes the jamming attackers and prevents vehicles from jamming through human intervention is proposed. In this article, we propose a range-free approach to localize the source of the attacker and determine the number of jamming attackers. The data set is the locating information and the jamming detection information associated with each vehicle. Then, we formulate the problem of determining the number of attackers as a multiclass detection problem. We define the incorrectly classified area and use it to measure the distance between samples and centroids in fuzzy c-means algorithm. We further determine the number of jamming attackers through the coverage rate of beaconing circles and utilize weight-based fuzzy c-means to classify the data set. When the data set is classified as acceptable, we further explore the means of using particle swarm optimization algorithm to calculate the positional coordinates of each attacker. We simulate our techniques in MATLAB, and both urban traffic area and open area are considered in our simulation. The experimental results suggest that the proposed algorithm can achieve high precision when determining the number of attackers while the result of the classified performance is always satisfying. Our localization results lead to higher accuracy than other existing solutions. Also, when the data set is limited, the chances of taking accurate localization are higher than other measures.

scholarly journals Context-Aware Driver’s Behaviour Monitoring System in Vehicular Ad-Hoc Network

2021 ◽  
Vol 10 (2) ◽  
pp. 701-709
Keyword(s):  
Monitoring System ◽  
Ad Hoc Network ◽  
High Speed ◽  
Ad Hoc ◽  
Detection System ◽  
Vehicular Ad Hoc Network ◽  
Context Aware ◽  
Road Accidents ◽  
Road Transportation ◽  
Data Set

The number of deaths resulting from road accidents and mishaps has increased at an alarming rate over the years. Road transportation is the most popularly used means of transportation in developing countries like Nigeria and most of these road accidents are associated with reckless driving habits. Context-aware systems provide intelligent recommendations allowing digital devices to make correct and timely recommendations when required. Furthermore, in a Vehicular Ad-hoc Network (VANET), communication links between vehicles and roadside units are improved thus enabling vehicle and road safety. Hence, a non-intrusive driver behaviour detection system that incorporates context-aware monitoring features in VANET is proposed in this study. By making use of a one-dimensional highway (1D) road with one-way traffic movement and incorporating GSM technology, irregular actions (high speed, alcohol while driving, and pressure) exhibited by drivers are monitored and alerts are sent to other nearby vehicles and roadside units to avoid accidents. The proposed system adopted a real-time VANET prototype with three entities involved in the context-aware driver’s behaviour monitoring system namely, the driver, vehicle, and environment. The analytical tests with actual data set indicate that, when detected, the model measures the pace of the vehicle, the level of alcohol in the breath, and the driver's heart rate in-breath per minute (BPM). Therefore, it can be used as an appropriate model for the Context-aware driver’s monitoring system in VANET.

LoWVR: Low Overhead Watermark based Vehicle Revocation Scheme in VANET

2019 ◽  
Vol 9 (1) ◽  
pp. 124-143
Author(s):  
Atanu Mondal ◽  
Sulata Mitra
Keyword(s):  
Ad Hoc Network ◽  
Network Performance ◽  
Traffic Accidents ◽  
Ad Hoc ◽  
Random Number ◽  
Vehicular Ad Hoc Network ◽  
Third Party ◽  
Design Guideline ◽  
Message Digest ◽  
Qualitative Performance

Background and Objective: The inter-vehicle communication is a potential issue for improving road safety, detecting traffic accidents, etc. in vehicular ad hoc network. The communication among the vehicles in VANET must be protected from the dissemination of message by unauthorized vehicles and the alteration of the message by misbehaving vehicles. Methods: In this paper, a low overhead digital watermark based vehicle revocation scheme is proposed. The sender vehicle generates a message and a random number after observing an event. It generates a deformed version of the generated message and message digest, and concatenates them. The watermark bits are generated by the sender vehicle from its unique identification and the random number. The sender vehicle embeds the watermark bits in the concatenated form of the message digest and deformed version of the generated message, and broadcasts the embedded message for its neighbours. The neighbour vehicles extract the required information from the received embedded message to verify the authentication of the sender vehicle and to identify whether the sender vehicle is an alteration attacker. It revokes unauthentic vehicles and vehicles that are identified as alteration attacker from vehicular ad-hoc network without any dependency on the trusted third party. The cracking probability and cracking time are used to measure the robustness of the scheme. The cracking probability and cracking time are measured to set the design guideline regarding the size of the watermark. The qualitative performance of the scheme is measured in terms of storage, communication and computation overhead. The significant reduction of all such overheads is observed by comparing the qualitative performance of the proposed scheme with two existing schemes. Conclusion and Results: Thus, the proposed scheme is a low overhead solution of securing vehicular ad hoc network. Performance of the scheme is also studied quantitatively in terms of the time of verifying vehicle authentication at the receiving end, delay in message dissemination at the sending end and delay in message reception at the receiving end. The quantitative performance is also compared with two of the existing schemes.

scholarly journals Analisis perbandingan wireless network standard 802.11a dan 802.11p berdasarkan protokol dynamic source routing di lingkungan vehicular ad hoc networks

2017 ◽  
Vol 3 (2) ◽  
pp. 75
Author(s):  
Muhammad Yusuf ◽  
Radityo Anggoro
Keyword(s):  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Vehicular Ad Hoc Network ◽  
Urban Traffic ◽  
Source Routing ◽  
Dynamic Source Routing ◽  
Dynamic Source ◽  
Mobile Ad Hoc

Routing pada Vehicular Ad Hoc Network (VANET) merupakan kasus yang unik karena tingginya perubahan jaringannya. VANET sendiri juga digolongkan dalam Mobile Ad Hoc Network (MANET), sehingga protokol-protokol routing yang ada pada MANET dapat juga dipakai pada VANET. Pemilihan protokol routing menjadi salah satu aspek yang cukup penting. Oleh karena itu, penelitian ini akan melakukan evaluasi seberapa kuatnya protokol Dynamic Source Routing (DSR) dalam menghadapi berbagai skenario VANET yang memiliki kepadatan bervariasi di dalam lalu lintas perkotaan. Digunakan protokol 802.11p dalam ruang lingkup lalu lintas perkotaan yang didapat dari SUMo simulator, dan dianalisa menggunakan NS-2. Pemilihan 802.11p juga dipilih dari hasil perbandingan antara 802.11p dan 802.11a pada ruang lingkup lalu lintas yang berbentuk grid yang didapat juga dari simulator yang sama. Dari hasil analisa menunjukkan bahwa 802.11p memiliki performa yang lebih bagus dan bervariasi terhadap kepadatan-kepadatan yang telah ditentukan.  Routing on Vehicular Ad Hoc Network (VANET) is a unique case due to the high network changes. VANET itself is also classified in Mobile Ad Hoc Network (MANET), so the MANET routing protocols can also be used on VANET. Selection of routing protocols becomes one of the most important aspects. Therefore, this study will evaluate how strong the Dynamic Source Routing (DSR) protocol in dealing with various VANET scenarios that have varied densities in urban traffic. This research is using an 802.11p protocol that obtained from SUMO simulator and then analyzed by NS-2. The 802.11p protocol was selected based on the result of performance comparison between 802.11p and 802.11a on some grid-shaped traffic scenarios. The results show that 802.11p has better performance and more robust than 802.11a while using predefined densities. 

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