Title :
Network-Aware Adaptation Techniques for Mobile File Systems
Author :
Atkin, Benjamin ; Birman, Kenneth P.
Author_Institution :
NEC Lab.
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;
Conference_Titel :
Network Computing and Applications, 2006. NCA 2006. Fifth IEEE International Symposium on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7695-2640-3
DOI :
10.1109/NCA.2006.42
