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Design and Implementation of Video Streaming Service Quality Control System through Available Bandwidth Management

가용대역폭 관리를 통한 영상 스트리밍 서비스 품질 제어 시스템 설계 및 구현

  • 이인선 (충북대학교 전자정보대학 전파공학과) ;
  • 김현종 (충북대학교 전자정보대학 전파공학과) ;
  • 최성곤 (충북대학교 전자정보대학 정보통신공학과)
  • Received : 2010.08.23
  • Accepted : 2010.09.14
  • Published : 2010.09.28

Abstract

In this paper, we propose video quality control system(VQCS) which can control video service quality through the monitoring of end-to-end available bandwidth for video streaming service like IPTV in NGN convergence network. Various multimedia services such as video, voice and gaming service can be provided by IPTV, and these services require large amounts of bandwidth. At this time, video quality degradation like video jerkiness, block distortion and blurring is caused when network available bandwidth is insufficient. Available bandwidth monitoring method is need to stably control video streaming quality. So, we periodically calculate the amount of the packets in link and measure available bandwidth by using total length field in IP header at terminal. Scalability extractor in network selects suitable video streaming data rate based on available bandwidth and transports video streaming with adaptive data rate to prevent video quality deterioration.

Keywords

IPTV;QoS;Available Bandwidth;Video Quality;Quality Control

Acknowledgement

Supported by : 정보통신산업진흥원

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