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Design of Interworking Control System between QoS Parameters and QoE Items to Control Multimedia Services Quality

멀티미디어 서비스 품질 제어를 위한 QoS 파라미터와 QoE 요소간의 연동 제어 시스템 설계

  • 김현종 (충북대학교 전자정보대학 전파공학과) ;
  • 윤동근 (충북대학교 전자정보대학 전파공학과) ;
  • 최성곤 (충북대학교 전자정보대학 정보통신공학과)
  • Received : 2009.11.27
  • Accepted : 2010.01.12
  • Published : 2010.04.28

Abstract

In this paper, we propose a quality interworking control system to enhance user's quality satisfaction in NGN environment by controling QoS parameters related with QoE in network layer when service user's QoE using variance multimedia service is poor. The proposed system gathers QoS parameter information in network layer through control packet such as RTCP, and evaluates QoE of multimedia service using these QoS parameter information. Comparing the evaluated QoE with the measured QoE in application layer, QCS judges quality degradation, deduces related QoS parameters and decides relative importance of each parameter when QoE is lower than threshold value. QCS generates QoS control values which is based on routing and switching policy in service quality control system(SCS) and forwards them to SCS. Through this proposed system, service and network providers can provide multimedia services of enhanced quality to service users taking account of service characteristic and network performance.

Keywords

Multimedia Service;QoS;QoE;NGN;Interworking Control

Acknowledgement

Supported by : 한국연구재단

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