Title :
Effect of free bandwidth on VoIP Performance in 802.1lb WLAN networks
Author :
Narbutt, M. ; Davis, Michael H.
Author_Institution :
Sch. of Electron. & Commun. Eng., Dublin Inst. of Technol.
Abstract :
In this paper we experimentally study the relationship between bandwidth utilization in the wireless LAN and the quality of VoIP calls transmitted over the wireless medium. Specifically we evaluate how the amount of free bandwidth decreases as the number of calls increases and how this influences transmission impairments (i.e. delay, loss, and jitter) and thus degrades call quality. We show that the amount of free bandwidth is a good indicator for predicting VoIP call quality
Keywords :
Internet telephony; bandwidth allocation; broadband networks; performance evaluation; quality of service; wireless LAN; 802.11b WLAN; bandwidth utilization; network performance; quality of VoIP calls transmission; voice over Internet protocol; wireless local area network;
Conference_Titel :
Irish Signals and Systems Conference, 2006. IET
Conference_Location :
Dublin
Print_ISBN :
0-86341-665-9
