Voice communications over zigbee networks

Chonggang Wang, Kazem Sohraby, Rittwik Jana, Lusheng Ji, Mahmoud Daneshmand

Research output: Contribution to journalReview articlepeer-review

40 Scopus citations

Abstract

This article provides an overview of ZigBeeenabled wireless networks and discusses the feasibility of supporting voice communications over ZigBee networks. We begin by providing an overview of the ZigBee technology followed by an evaluation of voice quality and performance over such an impoverished wireless channel. Two types of voice communications, namely fullduplex voice over IP (VoIP) and half-duplex push-to-talk (PTT) are considered. Voice quality of VoIP is measured using the R-factor [1] (a well known objective speech quality metric). The quality of PTT, however, is evaluated based on packet-loss rate, delay, and jitter. The simulation results demonstrate that a low-power, low-rate wireless sensor network can support a limited range of voice services.

Original languageEnglish
Pages (from-to)121-127
Number of pages7
JournalIEEE Communications Magazine
Volume46
Issue number1
DOIs
StatePublished - Jan 2008

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