TY - JOUR
T1 - Voice communications over zigbee networks
AU - Wang, Chonggang
AU - Sohraby, Kazem
AU - Jana, Rittwik
AU - Ji, Lusheng
AU - Daneshmand, Mahmoud
PY - 2008/1
Y1 - 2008/1
N2 - 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.
AB - 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.
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U2 - 10.1109/MCOM.2008.4427240
DO - 10.1109/MCOM.2008.4427240
M3 - Review article
AN - SCOPUS:39449086712
SN - 0163-6804
VL - 46
SP - 121
EP - 127
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
IS - 1
ER -