Network-Aware Adaptation Techniques for Mobile File Systems

Author

Atkin, Benjamin ; Birman, Kenneth P.

Author_Institution

NEC Lab.

fYear

2006

fDate

24-26 July 2006

Firstpage

181

Lastpage

188

Abstract

Wireless networks present unusual challenges for mobile file system clients, since they are characterised by unpredictable connectivity and widely-varying bandwidth. The traditional approach to adapting network communication to these conditions is to write back file updates asynchronously when bandwidth is low. Unfortunately, this can lead to underutilisation of bandwidth and inconsistencies between clients. We describe a new mobile file system, MAFS, that supports graceful degradation of file system performance as bandwidth is reduced, as well as rapid propagation of essential file updates. MAFS is able to achieve 10-20% improvements in execution time for real-life file system traces featuring read-write contention

Keywords

bandwidth allocation; mobile computing; mobile radio; network operating systems; MAFS; mobile file system; network-aware adaptation techniques; read-write contention; wireless network; Bandwidth; Base stations; Computer networks; Delay; File servers; File systems; Interference; Mobile communication; Time sharing computer systems; Wireless networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Network Computing and Applications, 2006. NCA 2006. Fifth IEEE International Symposium on

Conference_Location

Cambridge, MA

Print_ISBN

0-7695-2640-3

Type

conf

DOI

10.1109/NCA.2006.42

Filename

1659490