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Voice over IP in PDC Packet Data Network

By Pernilla Norlund

Abstract

Sending voice as packages over a packet network, voice over IP, has increased with the growth of Internet. This has also affected the mobile cellular market and more services using this technique are provided to the end users. At TietoEnator Telecom Partners in Ursviken the Japanese mobile cellular system PDC is developed, verified and maintained. The main purpose of this masters thesis was to investigate how voice over IP would work in the PDC Packet Data network and the result of the investigation may lead to operators being able to provide more services to the end user. The investigation was conducted by implementing a prototype application that streamed real time speech over the PDC Packet Data network. The quality of the streaming speech was evaluated and analysed. Among the codecs found and used to convert the analogue signal to digital and back again, the CELP codec with a bit rate of 4.5 kbps gave the best reproduction of the speech. Voice over IP in PDC Packet Data Networ

Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.160.470
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