Abstract
Energy-efficiency is one of the main concerns in the wireless information dissemination system. This paper presents a wireless broadcast stream organization scheme which enables complex queries (e.g., aggregation queries) to be processed in an energy-efficient way. For efficient processing of complex queries, we propose an approach of broadcasting their pre-computed results with the data stream, wherein the way of replication of index and pre-computation results are investigated. Through analysis and experiments, we show that the new approach can achieve significant performance enhancement for complex queries with respect to the access time and tuning time.
Original language | English |
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Pages (from-to) | 15-22 |
Number of pages | 8 |
Journal | IEICE Transactions on Information and Systems |
Volume | E91-D |
Issue number | 1 |
DOIs | |
Publication status | Published - 2008 Jan |
Keywords
- Broadcast generation scheme
- Complex queries
- Mobile databases
- Pre-computation
- Wireless broadcasting
ASJC Scopus subject areas
- Software
- Hardware and Architecture
- Computer Vision and Pattern Recognition
- Electrical and Electronic Engineering
- Artificial Intelligence