Adaptive Playout Algorithm Using Packet Expansion for the VoIP

Nam, Jaehyun; Hwang, Won-Joo; Kim, Jong-Gyu; Lee, Soong Hee; Jang, Jong-Wook; Jin, Kyo-Hong; Lee, Jung-Tae

doi:10.1007/978-3-540-45235-5_55

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Algoritmos Adaptativos Por Paquete1

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2010

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“…El algoritmo de tiempo de playout adaptativo por expansión de segmentos se presenta en [23]. Este algoritmo expande el tamaño del segmento usando el algoritmo Overlap-Add Sincronizado, SOLA, en el receptor, la cual es una técnica para la modificación de la escala de tiempo de la señal de audio.…”

Section: Algoritmos Adaptativos Por Paqueteunclassified

Evaluación de algoritmos de control de retardo en voz sobre internet

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Section: Algoritmos Adaptativos Por Paqueteunclassified

Evaluación de algoritmos de control de retardo en voz sobre internet

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Analysis of Correlation between Sleep Interval Length and Jitter Buffer Size for QoS of IPTV and VoIP Audio Service over Mobile WiMax

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Kim²,

Hwang³

2010

The KIPS Transactions:PartC

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IPTV and VoIP services are considered as killer applications over Mobile WiMAX network, which provideshigh mobility and data rate. Among those which affect the quality of voice in those services, the jitter buffer or playout buffer can compensate the poor voice quality caused by the packet drop due to frequent route change or differences among routes between service endpoints. In this paper, we analyze the correlation between the sleep interval length and jitter buffer size in order to guarantee a predefined level of voice quality. For this purpose, we present an end-to-end delay model considering additional delay incurred by the WiMAX PSC-II sleep mode and a VoIP service quality requirement based on the delay constraints. Through extensive simulation experiments, we also show that the increase of jitter buffer size may degrade the voice quality since it can introduce additional packet drop in the jitter buffer under WiMAX power saving mode.

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Adaptive Playout Algorithm Using Packet Expansion for the VoIP

Cited by 2 publications

References 8 publications

Evaluación de algoritmos de control de retardo en voz sobre internet

Evaluación de algoritmos de control de retardo en voz sobre internet

Analysis of Correlation between Sleep Interval Length and Jitter Buffer Size for QoS of IPTV and VoIP Audio Service over Mobile WiMax

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