Global consistency management methods based on escrow approaches in mobile ad hoc networks

Issue title: Mobile and Wireless Networks

Article type: Research Article

Authors: Hara, Takahiro | Nishio, Shojiro

Affiliations: Department of Multimedia Engineering, Graduate School of Information Science and Technology, Osaka University, 1-5 Yamadaoka, Suita, Osaka 565-0871, Japan

Note: [] Corresponding author. Tel.: +81 6 6879 4511; Fax: +81 6 6879 4514; E-mail: [email protected]

Abstract: In a mobile ad hoc network, consistency management of data operations on replicas is a crucial issue for system performance. In our previous work, we classified several primitive consistency levels according to the requirements from applications and provided protocols to realize them. In this paper, we assume special types of applications in which the instances of each data item can be partitioned and propose two consistency management protocols which are combinations of an escrow method and our previously proposed protocols. We also report simulation results to investigate the characteristics of these protocols in a mobile ad hoc network. From the simulation results, we confirm that the protocols proposed in this paper drastically improve data availability and reduce the traffic for data operations while maintaining the global consistency in the entire network.

Keywords: Consistency management, mobile ad hoc network, data replication, escrow

DOI: 10.3233/MIS-2010-0090

Journal: Mobile Information Systems, vol. 6, no. 1, pp. 5-26, 2010