HRTS: A hierarchical reactive time synchronization protocol for wireless sensor networks

Saeid Pourroostaei Ardakani, Julian Padget, Marina De Vos

Research output: Chapter in Book/Conference proceedingConference contributionpeer-review

6 Citations (Scopus)

Abstract

Time synchronization plays an important role in the performance of wireless sensor networks. It can enhance the throughput and the lifetime of the network by improving the energy-efficiency, the freshness of collected data and reducing the network traffic and message conflicts. Due to the constraints on sensor nodes’ energy resources and the vulnerability of the distributed infrastructure of wireless networks, an efficient, scalable and accurate time synchronization protocol is desirable. This paper presents an accurate reactive protocol, named HRTS, that synchronizes the sensor nodes’ clock based on the node’s demand. It minimizes the synchronization region dynamically to the set of nodes which request synchronization. HRTS improves the accuracy of the synchronization procedure by measuring time parameters accurately and removing delays accordingly. Compared with the conventional time synchronization protocols like PCTS and TPSN, HRTS also reduces energy consumption by decreasing the traffic overheads especially when the network is not very dense.

Original languageEnglish
Title of host publicationAd Hoc Networks - 5th International ICST Conference ADHOCNETS 2013, Revised Selected Papers
EditorsPaolo Bellavista, Abdelhamid Mellouk, Mostafa Hashem Sherif, Jun Li
PublisherSpringer Verlag
Pages47-62
Number of pages16
ISBN (Print)9783319041049
DOIs
Publication statusPublished - 2014
Externally publishedYes
Event5th International ICST Conference on Ad Hoc Networks, ADHOCNETS 2013 - Barcelona, Spain
Duration: 16 Oct 201318 Oct 2013

Publication series

NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
Volume129
ISSN (Print)1867-8211

Conference

Conference5th International ICST Conference on Ad Hoc Networks, ADHOCNETS 2013
Country/TerritorySpain
CityBarcelona
Period16/10/1318/10/13

Keywords

  • End-to-end delay
  • On-demand synchronization
  • Time synchronization protocol
  • Wireless sensor networks

ASJC Scopus subject areas

  • Computer Networks and Communications

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