Power efficient filtering of data on air
EDBT '94 Proceedings of the 4th international conference on extending database technology: Advances in database technology
Energy efficient indexing on air
SIGMOD '94 Proceedings of the 1994 ACM SIGMOD international conference on Management of data
Efficient indexing for broadcast based wireless systems
Mobile Networks and Applications - Special issue on mobile computing and system services
A Hybrid Index Technique for Power Efficient Data Broadcast
Distributed and Parallel Databases
Data on Air: Organization and Access
IEEE Transactions on Knowledge and Data Engineering
Optimizing Index Allocation for Sequential Data Broadcasting in Wireless Mobile Computing
IEEE Transactions on Knowledge and Data Engineering
Energy efficient filtering of nonuniform broadcast
ICDCS '96 Proceedings of the 16th International Conference on Distributed Computing Systems (ICDCS '96)
Power Conservative Multi-Attribute Queries on Data Broadcast
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Energy Management on Handheld Devices
Queue - Power Management
Exponential index: a parameterized distributed indexing scheme for data on air
Proceedings of the 2nd international conference on Mobile systems, applications, and services
Broadcast program generation for webcasting
Data & Knowledge Engineering
Optimal Skewed Data Allocation on Multiple Channels with Flat Broadcast per Channel
IEEE Transactions on Computers
Interpolating the air for optimizing wireless data broadcast
Proceedings of the 5th ACM international workshop on Mobility management and wireless access
An efficient nonuniform index in the wireless broadcast environments
Journal of Systems and Software
| Hi-index | 0.00 |
In wireless data broadcast systems, popular information is repetitively disseminated through possibly multiple communication channels to mobile clients using various types of battery-operated devices. Access latency and tuning time are two conflicting performance metrics used in such systems to measure their efficiency. In practice, different application and usage scenarios may require different performance trade-offs between the two metrics: some may tolerate slightly longer access latencies to benefit from lower energy requirements, while others may favor shorter access latencies at the cost of higher energy expenditures. To provide data broadcast service providers with the freedom to trade-off between both metrics in an adjustable way, we propose a new flexible and parameterizable air- indexing scheme, called FlexInd. FlexInd is a hybrid indexing method that takes advantage of three separate air-indexing approaches, namely (a) no-indexing, (b) exponential indexing, and (c) flexible distributed indexing, to optimize either access latency or tuning time with certain performance guarantees on the other metric. Based on the access latency or energy conservation requirements imposed on the system, FlexInd chooses among the three indexing schemes the one which yields the best performance results with the access latency or tuning time bounded by a given limit. A performance study confirms that FlexInd is able to achieve lower average access latencies and tuning times than existing indexing schemes since it provides greater flexibility in trading-off access efficiency for power expenditure and vice versa.