Effect of free bandwidth on VoIP performance in 802.11b WLAN networks
Effect of free bandwidth on VoIP performance in 802.11b WLAN networks
- Author(s): M. Narbutt and M. Davis
- DOI: 10.1049/cp:20060424
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- Author(s): M. Narbutt and M. Davis Source: IET Irish Signals and Systems Conference (ISSC 2006), 2006 p. 123 – 128
- Conference: IET Irish Signals and Systems Conference (ISSC 2006)
- DOI: 10.1049/cp:20060424
- ISBN: 0 86341 665 9
- Location: Dublin, Ireland
- Conference date: 28-30 June 2006
- Format: PDF
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.
Inspec keywords: quality of service; broadband networks; Internet telephony; wireless LAN; bandwidth allocation; performance evaluation
Subjects: Computer communications; Radio links and equipment; Local area networks; Telephony; Computer network performance
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