Abstract
This letter proposes an energy-efficient clock synchronization scheme for Wireless Sensor Networks (WSNs) based on a novel time synchronization approach. Within the proposed synchronization approach, a subset of sensor nodes are synchronized by overhearing the timing message exchanges of a pair of sensor nodes. Therefore, a group of sensor nodes can be synchronized without sending any extra messages. This paper brings two main contributions: 1. Development of a novel synchronization approach which can be partially or fully applied for implementation of new synchronization protocols and for improving the performance of existing time synchronization protocols. 2. Design of a time synchronization scheme which significantly reduces the overall network-wide energy consumption without incurring any loss of synchronization accuracy compared to other well-known schemes.
Original language | English |
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Article number | 4626304 |
Pages (from-to) | 3318-3322 |
Number of pages | 5 |
Journal | IEEE Transactions on Wireless Communications |
Volume | 7 |
Issue number | 9 |
DOIs | |
Publication status | Published - Sept 2008 |
Externally published | Yes |
Keywords
- Clock synchronization
- Time synchronization
- Wireless sensor networks