2017
DOI: 10.5121/ijcsity.2017.5101
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Case Study for Performance Analysis of VOIP Codecs in Non-Mobility Scenarios

Abstract: IEEE 802.11 is the most popular standard for WLAN networks. It offers different physical transmission rates. This paper focuses on this multi transmission rate of 802.11 WLANs and its effect on speech quality. In non-adaptive systems, when the physical layer switches from a higher transmission rate to a lower one, different than the one that the VoIP flow needs, the switching may result in congestion, high delay and packet loss, and consequently speech quality degradation. However, there are some algorithms th… Show more

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Cited by 3 publications
(2 citation statements)
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“…The study presented in [7] compared VoIP call quality when using codec adaptation, rate adaptation and codec-rate adaptation. The assessment considered codecs G.711, G.723 and G.729.…”
Section: Related Workmentioning
confidence: 99%
See 1 more Smart Citation
“…The study presented in [7] compared VoIP call quality when using codec adaptation, rate adaptation and codec-rate adaptation. The assessment considered codecs G.711, G.723 and G.729.…”
Section: Related Workmentioning
confidence: 99%
“…A number of studies have compared the performance of audio codecs in literature [2][3][4][5][6][7][8][9][10]. However, no prior work has investigated the influence of different audio codecs on the performance of available cellular mobile networks.…”
Section: Introductionmentioning
confidence: 99%