Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/1118
Title: An energy-efficient framework for multi-rate query in wireless sensor networksnergy-aware protocol for data gathering applications in wireless sensor networks
Authors: Chen, Yingwen
Leong, Hong-va
Xu, Ming
Cao, Jiannong
Chan, Keith C. C.
Chan, Alvin T. S.
Subjects: Signal processing systems
Computer communication networks
Wireless communication
Programming languages (Electronic computers)
Framework (computer file)
Information systems
Data management
Query processing
Issue Date: 2006
Publisher: IEEE
Source: CIT 2006 : The 6th IEEE International Conference on Computer and Information Technology : 20-22 September 2006, Seoul, Korea, [p. 7]
Abstract: Minimizing the communication overhead is always a hot topic in wireless sensor networks. In a multi-rate query system, data sources disseminate the data streams to users at the frequency they request. However, sending data in different frequency to individual users is very costly. We address this problem by broadcasting a single consolidated data stream, aiming at reducing the amount of transmitted data. Taking into account the data correlation, we can re-construct the data streams at lower frequencies from the consolidated stream at a higher frequency. In this paper, we propose an energy-efficient framework to process multi-rate queries and investigate rate conversion mechanism. We evaluate both the accuracy and energy efficiency by simulation. Simulation results indicate that with a reasonable level of tolerance, the performance gain is significant. As far as we know, this is the first energy-efficient solution for multi-rate query in wireless sensor networks.
Rights: © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.
Type: Conference Paper
URI: http://hdl.handle.net/10397/1118
ISBN: 9780769526874
Appears in Collections:COMP Conference Papers & Presentations

Files in This Item:
File Description SizeFormat 
energy-efficient_06.pdf171.21 kBAdobe PDFView/Open


All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated. No item in the PolyU IR may be reproduced for commercial or resale purposes.