Implementation of Internet Video Phone Supporting Adaptive QoS 


Vol. 10,  No. 4, pp. 479-484, Aug.  2003
10.3745/KIPSTC.2003.10.4.479


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  Abstract

In the current Internet, it is difficult for an Internet Phone to guarantee the QoS due to variable network conditions such as packet loss rate, delay and bandwidth. In addition, the QoS of an Internet Video Phone is more hard to guarantee because of video data. In this paper, we investigate application-level QoS control schemes that can adapt to variable network conditions, and describe an error control scheme and a congestion control scheme. Based on these QoS control schemes, we have designed and implemented an Internet Video Phone System that supports adaptive audio and video delivery. Through experiments, we found that the Internet Video Phone can reduce the packet loss rate considerably as well as adjust the transmission rate considering other TCP flows.

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[IEEE Style]

C. T. Ug, K. Y. Ju, J. G. Dong, "Implementation of Internet Video Phone Supporting Adaptive QoS," The KIPS Transactions:PartC, vol. 10, no. 4, pp. 479-484, 2003. DOI: 10.3745/KIPSTC.2003.10.4.479.

[ACM Style]

Choe Tae Ug, Kim Yeong Ju, and Jeong Gi Dong. 2003. Implementation of Internet Video Phone Supporting Adaptive QoS. The KIPS Transactions:PartC, 10, 4, (2003), 479-484. DOI: 10.3745/KIPSTC.2003.10.4.479.

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