Performance analysis of a novel low-complexity high-precision timing synchronization method for wireless sensor networks

Tao Ma, Zhanqi Xu, Michael Hempel, Dongming Peng, Hamid Sharif

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

In wireless sensor networks, nodes periodically wake up and sleep in order to reduce their energy consumption. One challenge in this scenario is how to coordinate the sender and receiver so that they can wake up and sleep at the same pace to maintain connectivity. In this paper, we present a synchronization method that has very low energy consumption overhead yet high-precision synchronization performance. Different from existing synchronization methods, it does not need to correct the offsets and skews of the clocks of nodes. Instead, our proposed method takes advantage of the fact that the time interval between two transmitted beacons is the same as the time interval between two received beacons, since the propagation and coding delay can be assumed to be similar in these two transmissions. Thus, the receiver and the sender can be synchronized using their individual clocks. Based on this key idea, our synchronization method can overcome the offset and drift issue without modifying the clocks. This paper focuses on the theoretical analysis to evaluate this proposed method. The closed-form expression of the error limits for our method has been obtained. Also, the correctness of the theoretical analysis has been verified by our experimental results.

Original languageEnglish (US)
Article number6837509
Pages (from-to)4758-4765
Number of pages8
JournalIEEE Transactions on Wireless Communications
Volume13
Issue number9
DOIs
StatePublished - Sep 1 2014

Keywords

  • Synchronization
  • low-complexity
  • theoretical analysis
  • ultra-low duty cycle
  • wireless sensor network

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

Fingerprint Dive into the research topics of 'Performance analysis of a novel low-complexity high-precision timing synchronization method for wireless sensor networks'. Together they form a unique fingerprint.

Cite this