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http://dx.doi.org/10.3745/KIPSTC.2003.10C.4.479

Implementation of Internet Video Phone Supporting Adaptive QoS  

Choi, Tae-Uk (부산대학교 대학원 전자계산학과)
Kim, Young-Ju (신라대학교 컴퓨터정보공학부)
Chung, Ki-Dong (부산대학교 전자계산학과)
Publication Information
The KIPS Transactions:PartC / v.10C, no.4, 2003 , pp. 479-484 More about this Journal
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.
Keywords
VoIP; Internet Video Phone; Adaptive QoS; Error Control; Congestion Control;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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