无线传感器网络中节能多跳时间同步算法的改进

2010 IEEE International Conference on Wireless Communications, Networking and Information Security Pub Date : 2010-06-25 DOI:10.1109/WCINS.2010.5541751

Zhehan Ding, N. Yamauchi

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引用次数: 5

摘要

时间同步是无线传感器网络(WSN)的关键组成部分，因为大量的传感器节点需要协同完成数据采集、数据融合和定位。在具有大规模能量有限节点的无线传感器网络中，必须采用多跳时间同步。一些协议，如RBS和TSPN，可以基于生成树网络实现多跳。然而，大多数方法主要关注同步的精度。事实上，在资源有限的无线传感器网络中，能源效率也是一个挑战。本文提出了一种改进的多跳时间同步方案，以降低能耗，延长传感器节点的寿命。并进行了性能分析和仿真。首先，该方法具有较好的同步误差性能。其次，该方案比RBS消耗更少的能量，可以减少开销。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An improvement of energy efficient multi-hop time synchronization algorithm in wireless sensor network

Time synchronization is a crucial component for wireless sensor network (WSN), because large populations of sensor nodes will collaborate in order to complete the data gathering, data fusion and localization. In a wireless sensor network with large scale of energy limited nodes, multi-hop time synchronization is necessarily applied. Some protocols such as RBS and TSPN can be used based on a spanning tree network for multi-hop. However most of the methods mainly focus on the precision of synchronization. In fact energy efficiency is also a challenge in a resource-limited WSN. In this paper an improved scheme of multi-hop time synchronization is proposed with the purpose of reducing energy consumption and lengthening sensor nodes' life. Performance analyses and simulations are also presented. First the proposed method has a better synchronization error performance. Second this proposed scheme consumes less energy than RBS and can decrease overhead.

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2010 IEEE International Conference on Wireless Communications, Networking and Information Security

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