Cross-layer Mobile Chord P2P protocol design for VANET. (1st September 2010)

• Record Type: Journal Article
• Authors: Liu, Che-Liang; Wang, Chih-Yu; Wei, Hung-Yu
• Is Part Of: International journal of ad hoc and ubiquitous computing. Volume 6:Number 3(2010)
• Page Start: 150
• Page End: 163
• Publication Date: 2010-09-01
• Subjects: VANETs -- vehicular ad hoc networks -- peer-to-peer networks -- P2P networks -- cross-layer design -- vehicular networks -- mobile networks -- simulation -- P2P overlay -- query response; Ubiquitous computing -- Periodicals; Embedded computer systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; Wireless communication systems -- Periodicals; Computer architecture -- Periodicals; 004.2
• Languages: English
• ISSNs: 1743-8225

Abstract

Efficient content distribution is one of the emerging applications in vehicular networks. To provide scalable content distribution in vehicular networks, Chord Peer-to-Peer (P2P) overlay could be applied. Most P2P protocols, including Chord, are designed for wired-line network, and might perform poorly in mobile networks. Mobile Chord (MChord) is proposed to enhance the P2P performance over Vehicular Ad hoc Network (VANET). In addition, cross-layer design to improve MChord performance in VANET is also investigated. Extensive NS-2 simulations with vehicular mobility traces are conducted to evaluate the P2P overlay performance in VANET. MChord and its cross-layer design outperforms the original Chord in various aspects, including application layer forwarding steps, query response ratio, correct query response ratio, and application delay.