Improvement and Performance Evaluation for Multimedia Files Transmission in Vehicle-Based DTNs

Resource type
Date created
2013
Authors/Contributors
Author: Wu, Di
Author: Tan, Guozhen
Author: Sun, Limin
Author: Li, Juanjuan
Abstract
In recent years, P2P file sharing has been widely embraced and becomes the largest application of the Internet traffic. And the development of automobile industry has promoted a trend of deploying Peer-to-Peer (P2P) networks over vehicle ad hoc networks (VANETs) for mobile content distribution. Due to the high mobility of nodes, nodes’ limited radio transmission range and sparse distribution, VANETs are divided and links are interrupted intermittently. At this moment, VANETs may become Vehicle-based Delay Tolerant Network (VDTNs). Therefore, this work proposes an Optimal Fragmentation-based Multimedia Transmission scheme (OFMT) based on P2P lookup protocol in VDTNs, which can enable multimedia files to be sent to the receiver fast and reliably in wireless mobile P2P networks over VDTNs. In addition, a method of calculating the most suitable size of the fragment is provided, which is tested and verified in the simulation. And we also show that OFMT can defend a certain degree of DoS attack and senders can freely join and leave the wireless mobile P2P network. Simulation results demonstrate that the proposed scheme can significantly improve the performance of the file delivery rate and shorten the file delivery delay compared with the existing schemes.
Document
Published as
International Journal of Distributed Sensor Networks
Volume 2013 (2013), Article ID 358267, 10 pages
http://dx.doi.org/10.1155/2013/358267
Publication title
International Journal of Distributed Sensor Networks
Document title
Improvement and Performance Evaluation for Multimedia Files Transmission in Vehicle-Based DTNs
Date
2013
First page
1
Last page
10
Publisher DOI
10.1155/2013/358267
Copyright statement
Copyright is held by the author(s).
Scholarly level
Peer reviewed?
Yes
Language
Member of collection
Attachment Size
358267.pdf 1.52 MB