Collision-free multichannel superframe scheduling for IEEE 802.15.4 cluster-tree networks

Xi Jin, Qiong Zhang, Peng Zeng, Fanxin Kong, Yang Xiao

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

The beacon-enabled mode is effective in improving real-time performance of wireless sensor networks (WSNs). Keeping cluster heads and members synchronised in cluster-tree networks becomes challenging in presence of beacon collisions. In this paper, we study a collision-free multichannel superframe scheduling problem.We first formulate this problem in the satisfiability modulo theories (SMT) specification. It can be solved by an SMT solver but with limited scalability. Then, we present two more efficient approaches. Our results show that the proposed approaches can significantly improve the schedulability of superframes compared to the existing approach. Finally, we implement a real system based on a wireless network for industrial automation-process automation (WIA-PA) network to show the feasibility of our proposal.

Original languageEnglish (US)
Pages (from-to)246-258
Number of pages13
JournalInternational Journal of Sensor Networks
Volume15
Issue number4
DOIs
StatePublished - Jan 1 2014

Keywords

  • Beacon collisions
  • Beacon-enable mode
  • Cluster-tree networks
  • Superframe scheduling
  • WSNs
  • Wireless sensor networks

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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