Performance evaluation of VoIP technology in an extended service set, in concordance with IEEE 802.11g
DOI:
https://doi.org/10.18046/syt.v15i42.2541Keywords:
Alix, ESS, IEEE 802.11g, MOS, QoE, QoS, VoIP.Abstract
In this paper, we evaluate the performance in function of the metrics associated to Quality of Service [QoS] and Quality of user Experience [QoE] in an experimental way in the VoIP service for G.711 and G.729 códecs. This was performed over an extended service set based on Wi-Fi technology in concordance with IEEE 802.11g standard using embedded systems. QoS related metrics are obtained by using the intrusive traffic injection technique. In addition, we assessed the QoE using the MOSc [Mean Opinion Score conversational] analysis. The best results were obtained for G.729, reaching up to 25 simultaneous injections with optimal delay, jitter and packet loss values according to the ITU-T recommendation for VoIP. However, the G.711 codec presented a better throughput. On the other hand, QoE evaluation indicates a slight superiority of G.729 in the MOSc appreciation. Finally, we conclude that packet loss and delay are the most influential metrics in VoIP service degradation.
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Avallone, S., Guadagno, S., Emma, D., & Ventre, G. (Sept. 2004). D-ITG distributed Internet traffic generator. In: Proceedings of the First International Conference on the Quantitative Evaluation of Systems QEST 2004 (pp. 316-317). IEEE.
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Coleman, D. D., & Westcott, D. A. (2009). CWNA: Certified wireless network administrator official study guide. Sybex. Indianapolis, IN: Wiley
Dialogic Corporation. (2007). Overcoming barriers to high-quality voice over IP Deployments [white paper] Retrieved from: http://www.sumopartner.com/Resources/images/17480.pdf
Dini, P., Font-Bach, O., & Mangues-Bafalluy, J. (2008). Experimental analysis of VoIP calls quality support in IEEE 802.11 DCF. In Proceedings of the 6th International Symposium on Communication Systems, Networks and Digital Signal Processing (pp. 443-447). IEEE.
Farproc. (2017). Wifi analyzer [Android App]. Retrieved from: http://www.wifianalyzer.info/
Frost & Sullivan (2017, January 3). Growth opportunities in the VoIP access and SIP trunking services market [white paper]. Retrieved from: https://www.frost.com/c/10107/sublib/display-report.do?id=K0FC-01-00-00-00
Geier, J. (2010). Designing and deploying 802.11n wireless networks. Indianapolis, IN: Cisco.
Hattingh, C., & Szigeti, T. (2004). End-to-end QoS network design: Quality of service in LANs. WANs and VPNs. Indianapolis, IN: Cisco
IBM Knowledge Center. (2011). SPSS data collection 6.0.1: Call duration. Retrieved from: https://www.ibm.com/support/knowledgecenter/en/SSLVQG_6.0.1/com.spss.ddl/mrint_autodialer_callanalysis_callduration.htm
ITU-T Rec. G.114: One-way transmission time. (2003). Geneva, Switzerland: ITU.
ITU-T Rec. P.800: Methods for subjective determination of transmission quality. (1996), Geneva, Switzerland: ITU.
ITU-T Rec. P.830: Subjective performance assessment of telephone-band and wideband digital codecs. (1996). Geneva, Switzerland: ITU.
ITU-T Rec. P.910: Subjective video quality assessment methods for multimedia applications. (2008). International Geneva, Switzerland: ITU.
Keegan, B. & Davis, M. (2006). An experimental analysis of the call capacity of IEEE 802.11b wireless local area networks for VoIP telephony. In Irish Signals and Systems Conference (pp. 283-287). IET.
Kolahi S.S., Shah M.A., & Joseph J. (2012). Performance of VoIP on IPv4 and IPv6to4 tunnel using Windows Vista and Windows 7. In: F. Gaol (Ed.), Lecture Notes in Electrical Engineering, 157: Recent progress in data engineering and internet technology (pp. 477-483). Berlin-Heidelberg, Germany: Springer.
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Mills, D. L. (1991). Internet time synchronization: The network time protocol. IEEE Transactions on Communications, 39(10), 1482-1493.
Oliveira, C. & Siqueira, M. (2006). Simultaneous VoIP calls capacity over an 802.11 Ad Hoc Network. In: International Conference on Wireless
Networks (pp. 470–476). Berlin, Heidelberg: Germany: Springer-ICST.
PC Engines (2013). ALIX 3d3 Product File. Retrieved from: http://www.pcengines.ch/alix3d3.htm
QPCOM. (2011). QP-2424G high-performance reflector grid Wi-Fi antenna. (2011). Retrieved from: http://qpcom.com.co/Portals/116/QPAO24G24_Spec.pdf
Ramírez, R. (2013). Implantación de un sistema VoIP basado en software libre con Asterisk [Master Thesis]. Universitat Oberta de Catalunya: Barcelona, España.
Ubiquiti Networks (2013). Ubiquiti super range 2. Retrieved from: https://dl.ubnt.com/sr2_datasheet.pdf
Vesga-Ferreira J.C., Granados G., & Vesga-Barrera J.A. (2016). Evaluation of the performance of a network LAN over powerline communications for the transmission of VoIP. Iteckne, 13(1), 83-95.
Villacis, D., Acosta, F., & Lara, R. (2013). Performance analysis of VoIP services over WiFi-based systems. In: IEEE Colombian Conference on Communications and Computing (COLCOM), 2013. Retrieved from: http://ieeexplore.ieee.org/abstract/document/6564813/
Voyage Design and Consultants (2013). About Voyage Linux. Retrieved from: http://linux.voyage.hk
Winstron Neweb Corp. (2011). Winstron CM9-GP. Retrieved from: http://www.roc-noc.com/pdf/wnc/CM9_Data_Sheet.pdf
Zoiper. (2017). Softphone Zoiper 3. Retrieved from: https://www.zoiper.com/
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