Broadcast-based Skew Correction Technique for Wireless Sensor Networks
Time synchronization is a vital process in wireless sensor networks, where energy sources are highly limited. In this work, we propose a broadcast-based skew correction technique that will improve both the accuracy and the lifetime of any time synchronization protocol that only corrects time off...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2016-12-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | http://ijtech.eng.ui.ac.id/article/view/310 |
| Summary: | Time
synchronization is a vital process in wireless sensor networks, where energy
sources are highly limited. In this work, we propose a broadcast-based skew
correction technique that will improve both the accuracy and the lifetime of
any time synchronization protocol that only corrects time offsets among sensor
nodes. Using time information transmitted periodically by the root node, each
client node can compensate its software clock frequency in real time after an
initial offset correction. The experimental results show that a clock skew
below 0.05 us/s can be consistently achieved with appropriate compensation
parameters after the correction process is stabilized. |
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| ISSN: | 2086-9614 2087-2100 |