Abstract

This paper discusses the service quality of packet-based voice service provided over wireless mobile networks such as wireless broadband (WiBro) and high speed downlink packet access (HSDPA) systems. Using measurement software, a large scale of experiment has been conducted to measure the actual quality of the voice service over both wireless mobile networks. Based on the results from the experiment, the quality of the voice service is supposed to be quite good. Through further experiment, the quality degradation over a radio channel leads to the increase in delay and the subsequent quality degradation of the voice service.

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