A Review on Various Approaches of Data Security and Communication in VANET

2017 ◽  
Vol 7 (12) ◽  
pp. 68
Author(s):  
Ishu Bansal
Keyword(s):  
Cognitive Radio ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Intelligent Transport System ◽  
Road Transportation ◽  
Intelligent Transport ◽  
Safety Message ◽  
Message Transmission

VANET is vehicular Ad-hoc network which is used for intelligent transport system for the drivers the ad-hoc network is used to transmit various types of message over the network. Safety message has to transmit for the security reasons on the vehicle and road transportation various routing protocols have been utilized for the purpose of message transmission. GPRS, AODV, DSR, PUMA these are various routing protocol utilizes for message transmission vanet scenario is used for mainly V2V and V2R purposes. Due to low bandwidth safety messages have been get congestion and information transmitted get loss. This information loss causes various problems in VANET that cause accidents, miss-communication between sharing information from V2V and V2R. To overcome this issue cognitive radio bandwidth can be utilize for data transmission by channel sensing and message can be transmit through cognitive radio channels.

scholarly journals Reliable and Efficient Routing Mechanisms for Vehicular ad-hoc Network

2018 ◽  
Vol 7 (2) ◽  
pp. 75-80
Author(s):  
Venkatamangarao Nampally ◽  
M. Raghavender Sharma
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Intelligent Transport System ◽  
Main Function ◽  
Intelligent Transport ◽  
Dynamic Topology ◽  
Route Information ◽  
Carry And Forward

In order to provide stable connections among nodes, a routing protocol is necessary in VANET system. Dynamic topology and frequent disconnection makes difficult to design an efficient routing protocol for VANET to route information among nodes. The survey of routing protocols in VANET system helps in understanding the concepts of smart intelligent transport system (ITS). It is observed that carry-and-forward is the key consideration and main function of an efficient routing protocol in VANET system. This paper explains various routing protocols for VANET system.

Research and Improvement of Clustering Routing Algorithm in Ad Hoc Network

2013 ◽  
Vol 834-836 ◽  
pp. 1087-1090
Author(s):  
Ping Zong ◽  
Jun Qin
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ant Colony Algorithm ◽  
Ad Hoc ◽  
Routing Algorithm ◽  
Routing Overhead ◽  
End To End Delay ◽  
The Impact ◽  
Network Scalability

With the expansion of the network, especially in the case of the nodes frequently moving, clustering routing protocol can reduce the impact of the changed topology on routing protocols, and improve the network scalability and reduce routing overhead. Based on the analysis of the problems of CBRP clustering routing protocol, this paper presents a CRBAC clustering routing algorithm based on ant colony algorithm. The simulation results show that, in the circumstance that the algorithm doesnt significantly increase the routing overhead, improved clustering routing protocol CRBAC get better performance than CBRP. They reflect on the clusters structure more reasonable and stable, the average end-to-end delay and network lifetime significantly improved.

scholarly journals Impact of Direction Parameter in Performance of Modified AODV in VANET

2020 ◽  
Vol 9 (3) ◽  
pp. 40 ◽  
Author(s):  
Afsana Ahamed ◽  
Hamid Vakilzadian
Keyword(s):  
Routing Protocol ◽  
Packet Loss ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
End To End Delay ◽  
Distance Vector ◽  
End To End ◽  
Route Request ◽  
The Impact

A vehicular ad hoc network (VANET) is a technology in which moving cars are used as routers (nodes) to establish a reliable mobile communication network among the vehicles. Some of the drawbacks of the routing protocol, Ad hoc On-Demand Distance Vector (AODV), associated with VANETs are the end-to-end delay and packet loss. We modified the AODV routing protocols to reduce the number of route request (RREQ) and route reply (RREP) messages by adding direction parameters and two-step filtering. The two-step filtering process reduces the number of RREQ and RREP packets, reduces the packet overhead, and helps to select the stable route. In this study, we show the impact of the direction parameter in reducing the end-to-end delay and the packet loss in AODV. The simulation results show a 1.4% reduction in packet loss, an 11% reduction in the end-to-end delay, and an increase in throughput.

A Novel DSR-Based Protocol for Small Reconnaissance UAV Ad Hoc Network

2014 ◽  
Vol 568-570 ◽  
pp. 1272-1277 ◽  
Author(s):  
Juan Li ◽  
Xiao Cheng Liu ◽  
Yue Feng Pang ◽  
Wei Wei Zhu
Keyword(s):  
Network Lifetime ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Energy Balancing ◽  
Packet Delivery ◽  
Source Routing ◽  
Dynamic Source ◽  
Short Network

Based on the traditional DSR Protocol has obvious drawbacks such as short network lifetime in the small reconnaissance UAV ad hoc network, a routing protocols called UEDSR(UAV Energy Dynamic Source Routing Protocol) suitable for small reconnaissance UAV ad hoc network is proposed. This protocol introduces the energy balancing mechanism into the algorithms based on DSR, then improves the situation of excessive energy consumption of hot nodes and prolongs the network lifetime. The simulation of protocol by NS2 illustrates that comparing to DSR the UEDSR protocol achieves about 7% increase in the network lifetime and the packet delivery and the average of network throughput are effectively improved.

scholarly journals Beacon-Based Non-Delay Tolerant Routing Protocols for VANET: A Systematic Comparison

2021 ◽  
Vol 15 (5) ◽  
pp. 12
Author(s):  
Mahmoud Ali Al Shugran
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Unique Feature ◽  
Wireless Ad Hoc Network ◽  
Main Concern ◽  
Topology Change ◽  
Research Directions ◽  
Delay Tolerant

A Vehicular ad hoc network (VANET) is a sort of wireless ad hoc network which are used to provide communications between nodes. The frequent topology change is considered a unique feature of VANET nature due to the high movement of its participating vehicles. Thus, the design of a routing protocol that could cope with VANET characteristics is very challenging. Position-based routing protocols are the most suitable approaches for VANET. In this paper researcher broadly discussed Beacon-based Non-Delay Tolerant Geographical-based routing protocols for VANET. The main concern is to discuss the characteristics disadvantages of those protocols. Finally, several research directions relevant to the focus of this survey are identified that define preferred features of the appropriate routing protocol that can cope with VANET challenges.

scholarly journals Comparative Performance Analysis of Ad-Hoc Routing Protocol using NS-2 Simulator

2012 ◽  
pp. 50-54
Author(s):  
Prashant Rewagad ◽  
Nisha A. Lodha
Keyword(s):  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Network Routing ◽  
Performance Comparison ◽  
Ad Hoc Routing ◽  
Comparative Performance ◽  
Mobile Ad Hoc

Mobile Ad hoc Network is a collection of mobile nodes in which the wireless links are frequently broken down due to mobility and dynamic infrastructure. Routing is a significant issue and challenge in ad hoc networks. In Mobile ad hoc network, due to mobility of nodes network topology change frequently and thus, routing become challenging task to transfer the data from source to destination. A variety of routing protocols with varying network conditions are analyzed to find an optimized route from a source to some destination. This paper is based on performance comparison of two popular mobile ad-hoc network routing protocols using simulator i.e. DSR, ADOV. On the network simulation platform, a systematically simulation and research has been carried out on the performance of two routing protocols, and how the network environments impact on the performance of routing protocol.

scholarly journals Comparative Study of Routing Protocols in MANET

2017 ◽  
Vol 10 (1) ◽  
pp. 174-179 ◽  
Author(s):  
Sachin Lalar ◽  
Arun Yadav
Keyword(s):  
Comparative Study ◽  
Routing Protocol ◽  
Routing Protocols ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
Route Selection ◽  
Route Maintenance ◽  
Routing Table ◽  
Mobile Ad Hoc

Routing protocol is the essential and vital performance factor in the Mobile Ad-hoc Network. The routing protocols in MANET are accomplished to handle a lot number of nodes with restricted resources. There is a variety of routing protocol exist in MANET. The routing protocol which is chosen may have an effect on the performance of network. In this paper, We perform a comparative study of DSDV, CSGR, WRP, AODV, OLSR, DSR, TORA, ZRP, ZHLS, DYMO routing protocol with respect to Routing Approaches, Routing structure, Route selection, Route, Routing table, Route maintenance, Operation of protocols, Strength, Weakness.

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