Direction-Based Slots Scheduling Strategy for High Mobility Vehicular Ad Hoc Network

2010 ◽  
Author(s):  
Jimin Lin ◽  
Yi Wu
Keyword(s):  
Ad Hoc Network ◽  
Ad Hoc ◽  
High Mobility ◽  
Vehicular Ad Hoc Network ◽  
Scheduling Strategy

An Energy Efficient Geocast Routing Protocol Based on a Defer-Time Control Function for Vehicular Ad-Hoc Network

2011 ◽  
Vol 467-469 ◽  
pp. 972-977
Author(s):  
Bon Yeh Lin ◽  
Chi Hua Chen ◽  
Chi Chun Lo
Keyword(s):  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Control Function ◽  
High Mobility ◽  
Cost Effective ◽  
Routing Algorithms ◽  
Vehicular Ad Hoc Network ◽  
Hop Count ◽  
Time Control

The Vehicular Ad-hoc NETwork (VANET) requires a suitable routing protocol to accommodate its special characteristics (e.g., high mobility, short-lived links, and fast-changing topology). There are many routing algorithms which are developed for transmitting information more quickly and cost-effective. In this paper, we propose a routing protocol which relies on Defer-Time Control Function (DTCF) to reduce the hop count, the transmission delay, and the probability of collisions during transmission. We provide an extensive analysis of DTCFs and choose the power-law model for routing protocol optimization. The function can be adjusted dynamically according to the distribution of the neighboring nodes (vehicles) of each hop. We also propose a mechanism to prevent the selected next-hop leaves the transmission range.

scholarly journals Enhancing the Performance of DSR Routing Protocol Using Link Breakage Prediction in Vehicular Ad Hoc Network

2013 ◽  
Vol 1 (2013) ◽  
pp. 7-14 ◽  
Keyword(s):  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Mobile Ad Hoc Network ◽  
High Mobility ◽  
Vehicular Ad Hoc Network ◽  
High Data ◽  
Dynamic Topology ◽  
Dynamic Source ◽  
Special Case

Vehicular Ad hoc Network (VANET) is a special case of Mobile Ad hoc Network (MANET) with two key differences which are the high and constrained mobility of its nodes. Because of this high mobility, the topology of VANET is considered so dynamic. As a reason of this highly dynamic topology, the link breakages in these networks are something common. This problem causes high data loss and delay. In order to decrease these problems, the idea of link breakage prediction has appeared to deal with this phenomenon in MANET. This idea has proved to be successful to enhance the performance of routing protocols in MANET, but till now it did not be applied to the area of VANET. In this paper the idea of link breakage prediction was used to enhance the performance of the well known Dynamic Source Routing protocol (DSR) in VANET by applying a new mechanism which includes replacing the whole effected route (Not only the effected link). This new mechanism was able to decrease the packet loss and delay that occur in the original protocol

scholarly journals Rancang Bangun Protokol Perutean SDGR+R pada Vehicular AD-HOC Network Berbasis Arah

2020 ◽  
Vol 7 (6) ◽  
pp. 1197
Author(s):  
Eliyah Acantha Manapa ◽  
Sri Wahjuni ◽  
Shelvie Nidya Neyman
Keyword(s):  
Communication Network ◽  
Routing Protocol ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
Technology Development ◽  
High Mobility ◽  
Vehicular Ad Hoc Network ◽  
Destination Node ◽  
Delivery Ratio ◽  
Vehicle Communication

<p class="Default"><em>Vehicular Ad-Hoc Network</em> (VANET) merupakan pengembangan jaringan <em>wiresless</em> yang melakukan komunikasi secara <em>Inter Vehicle Communication</em> (IVC). VANET memiliki mobilitas yang tinggi untuk setiap <em>node</em> nya sehingga jaringan komunikasi jenis ini adalah jaringan yang bersifat sementara dikarenakan <em>node</em> bergerak di lintasan dengan arah dan kecepatan yang dinamis. Dengan demikian, pengiriman paket data dari <em>node</em> sumber ke <em>node</em> tujuan menggunakan VANET memerlukan beberapa teknik komunikasi. Teknik terbaru komunikasi VANET saat ini adalah menggunakan SDN (<em>Software Defined Network</em>) yang berbasis <em>geographic</em> (SDGR) sebagai <em>control</em> <em>plane</em> dalam mengontrol komunikasi <em>ad</em>-<em>hoc</em> antar <em>node</em>. Dalam membentuk topologi jaringan komunikasi, SDGR mencari nilai jalur terpendek antar <em>node</em> dan kepadatan <em>node</em> yang tinggi. Tujuan utama penelitian ini melakukan analisis konsep protokol perutean (<em>routing protocol)</em> SDGR dan dilakukan pengembangannya dengan mempertimbangkan arah rute (SDGR+R). Pada SDGR+R, penambahan basis arah rute menggunakan <em>m</em><em>ulticast</em>. Selanjutnya, dilakukan perbandingan kinerja antara SDGR dan SDGR+R. Hasil simulasi menunjukkan SDGR+R memiliki kinerja lebih baik daripada SDGR dalam hal <em>latency</em> sebesar 1.88% dan <em>packet</em> <em>delivery</em> <em>ratio </em>(PDR) sebesar 8.12%. Perancangan protokol perutean SDGR+R menambah ide pengembangan teknologi pada VANET untuk masa mendatang.</p><p class="Default"> <em><strong>Abstract</strong></em></p><p class="Judul2"><em>Vehicular Ad-Hoc Network (VANET) is a wireless network developed for communication on Inter-Vehicle Communication (IVC). Each node in a VANET has high mobility so that this type of communication network is a temporary network because the node moves on the track with dynamic direction and speed. Thus, sending data packets from source node to destination node using VANET requires some communication techniques. The latest technology for VANET communication is to use SDN-based geographic-based SDN (SDGR) as a control plane in controlling Ad-hoc communication between nodes. In</em><em> </em><em>forming the communication network topology, SDGR looks for the shortest path value between nodes and high node density. The main objective of this research is to analyze the concept of SDGR routing protocol and to develop it, considering the direction of the route (SDGR+R). In SDGR + R, the addition of route base directions uses multicast. Next, </em><em>we compare</em><em> the performance between SDGR and SDGR+R.</em><em> Simulation results show SDGR+R has better performance than SDGR in terms of latency </em><em>of 1.88% </em><em>and packet delivery ratio</em><em> of 8.12%</em><em>.</em><em> The design of the SDGR+R routing protocol gives to the idea of technology development on VANET in the future.</em></p><p class="Default"><em><strong><br /></strong></em></p>

A Mobility Prediction-Based Weighted Clustering Algorithm for Vehicular Ad-Hoc Network

2014 ◽  
Vol 687-691 ◽  
pp. 4114-4118
Author(s):  
Shou Jie Li ◽  
Qiong Huang ◽  
Ning Gao ◽  
Lun Tang
Keyword(s):  
Ad Hoc Network ◽  
Large Scale ◽  
Clustering Algorithm ◽  
Ad Hoc ◽  
Cluster Structure ◽  
High Mobility ◽  
Vehicular Ad Hoc Network ◽  
Mobility Prediction ◽  
Delivery Ratio ◽  
Weighted Clustering

For dynamical changed network topology and unstable links, this paper proposes a mobility prediction-based weighted clustering algorithm for vehicular ad-hoc network with high mobility nodes. In the CH election stage, it computes vehicle’s priority through the similarity, intimacy and centrality, the vehicles with the highest priority in their neighborhoods are selected as the CHs, this scheme suitable for large scale network. NS2 simulation results show that the proposed clustering scheme improves the stability of cluster structure, prolongs the CH duration time, improves the delivery ratio.

scholarly journals A Blockchain-Based Authentication Protocol for Cooperative Vehicular Ad Hoc Network

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1273
Author(s):  
A. F. M. Suaib Akhter ◽  
Mohiuddin Ahmed ◽  
A. F. M. Shahen Shah ◽  
Adnan Anwar ◽  
A. S. M. Kayes ◽  
...  
Keyword(s):  
Cooperative Communication ◽  
Ad Hoc Network ◽  
Ad Hoc ◽  
High Mobility ◽  
Authentication Protocol ◽  
Vehicular Ad Hoc Network ◽  
System Throughput ◽  
Identity Verification ◽  
Computational Overhead ◽  
Digital Signature Algorithm

The efficiency of cooperative communication protocols to increase the reliability and range of transmission for Vehicular Ad hoc Network (VANET) is proven, but identity verification and communication security are required to be ensured. Though it is difficult to maintain strong network connections between vehicles because of there high mobility, with the help of cooperative communication, it is possible to increase the communication efficiency, minimise delay, packet loss, and Packet Dropping Rate (PDR). However, cooperating with unknown or unauthorized vehicles could result in information theft, privacy leakage, vulnerable to different security attacks, etc. In this paper, a blockchain based secure and privacy preserving authentication protocol is proposed for the Internet of Vehicles (IoV). Blockchain is utilized to store and manage the authentication information in a distributed and decentralized environment and developed on the Ethereum platform that uses a digital signature algorithm to ensure confidentiality, non-repudiation, integrity, and preserving the privacy of the IoVs. For optimized communication, transmitted services are categorized into emergency and optional services. Similarly, to optimize the performance of the authentication process, IoVs are categorized as emergency and general IoVs. The proposed cooperative protocol is validated by numerical analyses which show that the protocol successfully increases the system throughput and decreases PDR and delay. On the other hand, the authentication protocol requires minimum storage as well as generates low computational overhead that is suitable for the IoVs with limited computer resources.

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