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Análise da Qualidade de Voz em uma Rede Ad Hoc Comunitária

Rafael B. Z. AntasNatalia C. FernandesDanilo M. TaveiraMiguel Elias M. CampistaLuis Henrique M. K. CostaOtto Carlos M. B. Duart

Different voice encoders were proposed for voice transmission over packet-switched networks. This article analyzes, based on the E model defined by the Resolution ITU-T G.107, the quality of these algorithms when applied to wireless ad hoc networks. Simulations evaluated the voice quality for different encoders considering the packets losses and the end-to-end delay. The results showed that the iLBC encoder is the most adaptive under these conditions, being viable to be applied into a community network for IP telephony.

http://www.lbd.dcc.ufmg.br:8080/colecoes/wgrs/2006/st3_2.pdf

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