Implementation of High Precision Synchronization Protocols in Wireless Sensor Networks
Loading...
Date
2014-05
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
Microsecond-level time synchronization is needed in
realtime applications of wireless sensor networks. While several
synchronization protocols have been proposed, most performance
evaluations have been limited to theoretical analysis and simulation,
with a high level of abstraction by ignoring several
practical aspects, e.g. packet handling jitters, clock drifting,
packet loss, etc. Effective implementation in real motes faces
several challenges due to motes’ limitations and the unreliable
lossy channels. These issues affect the protocol performance
and precision. Authors of some pragmatic solutions followed
empirical approaches for the evaluation, where the proposed
solutions have been implemented on real motes and evaluated in
testbed experiments. This article throws light on issues related
to the implementation of synchronization protocols in WSN.
The challenges related to WSN environment are presented, the
importance of real implementation and the testbed evaluation are
motivated by some experiments that we conducted. Finally, some
relevant implementations of the literature that meet microsecondlevel
precision are discussed.
Description
Keywords
Implementation of time synchronization, wireless sensor network, embedded systems