Mobile-Taiwan experience in voice over IP-worldwide interoperability for microwave access trial

Yi-Bing Lin*, Y. C. Sung, H. F. Rashvand, C. L. Liu, Y. J. Liao

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Considering voice as a dominant telecommunication service, the performance of Voice over IP (VoIP) plays a critical role in deployment of worldwide interoperability for microwave access (WiMAX) technology providing all-IP network services. To that effect, in this study, the authors investigate the performance of a WiMAX-based VoIP established under the mobile Taiwan (M-Taiwan) field-trial funded program. To achieve the objectives of the trial the measurement results expressed in the form of mean opinion score (MOS), packet loss, packet delay and jitters. For the worst-case scenario, the tests were conducted under a stringent condition of both communicating devices, wirelessly connected to the same WiMAX base station under a heavy background traffic and interference, were experiencing simultaneous handovers during the communication. Upon their analysis, the field measurements confirm an excellent performance when both communicating devices kept stationary and show an acceptable quality for the service when both communicating devices are on the move at a speed of 50 km/h.

Original languageEnglish
Article numberICEOCW000004000009001130000001
Pages (from-to)1130-1141
Number of pages12
JournalIET Communications
Volume4
Issue number9
DOIs
StatePublished - 11 Jun 2010

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