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This paper proposes a novel approach to quantifying the quality degradation of Voice over IP (VoIP) telephony in the presence of codec and network-related impairments. This approach differs from the baisc ITU-T E-Model for VoIP quality estimation in that it addresses mixed narrowband/wideband scenarios. It makes novel use of instrumental models and symbolic regression via Genetic Programming (GP)...
Packet loss is bursty in nature and it affects the quality of VoIP adversely. In this article a novel approach based on genetic programming (GP) has been presented that maps the effect of bursty packet loss on listeners' perception of speech quality. The ITU-T P.862 (PESQ) algorithm is used as a reference model in this research. A simplistic non-linear model for effective VoIP quality estimation has...
In today's telecommunications market there is a clear trend to adopt a flexible infrastructure to minimize costs and facilitate the introduction of new services. Typical examples are represented by dynamically managed packet-based next generation IP networks (NGN) and 4G mobile networks. In general the rate of success of these new networks will depend on whether they can deliver at least the same...
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