Abstract
Mobile computing is characterized by frequent disconnection, limited communication capability, narrow bandwidth, etc. Caching can play a vital role in mobile computing by reducing the amount of data transferred. In order to reuse caches after short disconnections, invalidation reports are broadcasted to clients to help update/invalidate their caches. Detailed reports may not be desirable because they can be very long and consume large bandwidth. On the other hand, false invalidations may set in if detailed timing information of updates is not provided in the report. In this research, we aim to reduce the false invalidation rates of the reports. It is found that false invalidation rates are closely related to clients' reconnection patterns (i.e., the distribution of the time spans between disconnections and reconnections). By using Newton's method, we show how a report with a minimal false invalidation rate can be constructed for any given disconnection pattern.
Original language | English (US) |
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Pages | 458-465 |
Number of pages | 8 |
DOIs | |
State | Published - 2001 |
Event | Proceedings of the 2001 ACM CIKM: 10th International Conference on Information and Knowledge Management - Atlanta, GA, United States Duration: Nov 5 2001 → Nov 10 2001 |
Other
Other | Proceedings of the 2001 ACM CIKM: 10th International Conference on Information and Knowledge Management |
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Country/Territory | United States |
City | Atlanta, GA |
Period | 11/5/01 → 11/10/01 |
All Science Journal Classification (ASJC) codes
- General Business, Management and Accounting