TSync: a lightweight bidirectional time synchronization service for wireless sensor networks
TSync: a lightweight bidirectional time synchronization service for wireless sensor networks
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DOI：
10.1145/980159.980173
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发表时间：
2004
期刊：
影响因子：
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通讯作者：
Hui Dai;Richard Han
中科院分区：
文献类型：
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作者：
Hui Dai;Richard Han
无线传感器网络中的时间同步对于事件的准确时间戳和唤醒/睡眠占空比的微调协调以降低功耗至关重要。本文提出了 TSync，一种用于无线传感器网络的新型轻量级双向时间同步服务。 TSync 的双向服务既提供了用于精确且低开销的全局时间同步的推送机制，也提供了用于各个传感器节点按需同步的拉动机制。多通道增强功能提高了 TSync 的性能。我们在实时传感器网络中部署支持 GPS 的框架，以评估 TSync 与其他现场时间同步算法的准确性和开销。
Time synchronization in a wireless sensor network is critical for accurate timestamping of events and fine-tuned coordination of wake/sleep duty cycles to reduce power consumption. This paper proposes TSync, a novel lightweight bidirectional time synchronization service for wireless sensor networks. TSync's bidirectional service offers both a push mechanism for accurate and low overhead global time synchronization as well as a pull mechanism for on-demand synchronization by individual sensor nodes. Multi-channel enhancements improve TSync's performance. We deploy a GPS-enabled framework in live sensor networks to evaluate the accuracy and overhead of TSync in comparison with other in-situ time synchronization algorithms.