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http://hdl.handle.net/10397/6520
Title: | An energy-efficient framework for multirate query in wireless sensor networks | Authors: | Chen, Y Xu, M Wang, HM Leong, HV Cao, J Chan, KCC Chan, ATS |
Issue Date: | 27-May-2007 | Source: | EURASIP journal on wireless communications and networking, 27 May 2007, v. 2007, 48984, p. 1-10 | Abstract: | Minimizing the communication overhead is always a hot topic in wireless sensor networks. In a multirate query system, data sources disseminate the data streams to users at the frequency they request. However, sending data in different frequencies 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 reconstruct 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 multirate queries and investigate the path-sharing routing tree construction method together with the 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 multirate query in wireless sensor networks. | Keywords: | Broadcasting Communication systems Computer simulation Data processing Energy efficiency Routing algorithms User interfaces |
Publisher: | Springer | Journal: | EURASIP journal on wireless communications and networking | ISSN: | 1687-1472 | EISSN: | 1687-1499 | DOI: | 10.1155/2007/48984 | Rights: | Copyright © 2007 Yingwen Chen et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. |
Appears in Collections: | Journal/Magazine Article |
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