Database system issues in nomadic computing
SIGMOD '93 Proceedings of the 1993 ACM SIGMOD international conference on Management of data
Sleepers and workaholics: caching strategies in mobile environments
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Data replication for mobile computers
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Energy efficient indexing on air
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Mobile wireless computing: challenges in data management
Communications of the ACM
Checkpointing distributed applications on mobile computers
PDIS '94 Proceedings of the third international conference on on Parallel and distributed information systems
Location management in distributed mobile environments
PDIS '94 Proceedings of the third international conference on on Parallel and distributed information systems
Object Allocation in Distributed Databases and Mobile Computers
Proceedings of the Tenth International Conference on Data Engineering
Querying in Highly Mobile Distributed Environments
VLDB '92 Proceedings of the 18th International Conference on Very Large Data Bases
Multiversion Data Broadcast Organizations
ADBIS '02 Proceedings of the 6th East European Conference on Advances in Databases and Information Systems
Adaptive multiversion data broadcast organizations
Information Systems - Special issue: ADBIS 2002: Advances in databases and information systems
IEEE Transactions on Mobile Computing
Towards universal mobile caching
Proceedings of the 4th ACM international workshop on Data engineering for wireless and mobile access
Energy efficient cache invalidation in a disconnected wireless mobile environment
International Journal of Ad Hoc and Ubiquitous Computing
A cache invalidation scheme for continuous partial match queries in mobile computing environments
Distributed and Parallel Databases
Broadcast based cache invalidation and prefetching in mobile environment
HiPC'04 Proceedings of the 11th international conference on High Performance Computing
Energy efficient cache invalidation in a disconnected mobile environment
ICDCIT'04 Proceedings of the First international conference on Distributed Computing and Internet Technology
| Hi-index | 0.00 |
Caching data in a wireless mobile computer can significantly reducethe bandwidth requirement. However, due to battery power limitation,a wireless mobile computer may often be forced to operate in a doze oreven totally disconnected mode. As a result, the mobile computer maymiss some cache invalidation reports. In this paper, we present anenergy-efficient cache invalidation method for a wireless mobilecomputer. The new cache invalidation scheme is called grouping withcold update-set retention (GCORE). Upon waking up, a mobile computerchecks its cache validity with the server. To reduce the bandwidthrequirement for validity checking, data objects are partitioned intogroups. However, instead of simply invalidating a group if any of theobjects in the group has been updated, GCORE retains the cold updateset of objects in a group if possible. We present an efficientimplementation of GCORE and conduct simulations to evaluate itscaching effectiveness. The results show that GCORE can substantiallyimprove mobile caching by reducing the communication bandwidth (thusenergy consumption) for query processing.