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Cooperative Network Synchronization: Asymptotic Analysis

  • Yifeng Xiong
  • , Nan Wu*
  • , Yuan Shen
  • , Moe Z. Win
  • *Corresponding author for this work
  • Beijing Institute of Technology
  • Tsinghua University
  • Massachusetts Institute of Technology

Research output: Contribution to journalArticlepeer-review

Abstract

Accurate clock synchronization is required for collaborative operations among nodes across wireless networks. Compared with traditional layer-by-layer methods, cooperative network synchronization techniques lead to significant improvement in performance, efficiency, and robustness. This paper develops a framework for the performance analysis of cooperative network synchronization. We introduce the concepts of cooperative dilution intensity (CDI) and relative CDI to characterize the interaction between agents, which can be interpreted as properties of a random walk over the network. Our approach enables us to derive closed-form asymptotic expressions of performance limits, relating them to the quality of observations as well as the network topology.

Original languageEnglish
Article number8055646
Pages (from-to)757-772
Number of pages16
JournalIEEE Transactions on Signal Processing
Volume66
Issue number3
DOIs
Publication statusPublished - 1 Feb 2018

Keywords

  • Cooperative network synchronization
  • Cramér-Rao bound (CRB)
  • cooperative dilution intensity (CDI)
  • random walk
  • relative CDI

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