Although standard DiffServ (Differentiated services) framework allows simultaneous transmission of video and data streams, it can not distinguish the importance of different video frames. Consequently, more received video packets may not lead to better decoded video quality. In this paper a novel inner-priority based video streaming scheme and its corresponding IP policy are proposed. Using IP policy, the importance of video packet could be recognized and corresponding RED queue will be assigned. Comprehensive evaluation results show that the average PSNR of IP policy is much higher than that of traditional policy in most cases and RED parameters settings influence the performance of IP policy. The best choice of RED parameters settings depends on many factors, including available bandwidth of the video stream, coding structure of video sequence, and the employed scheduling mode and dropping mode.
목차
Abstract 1. Introduction 2. Inner-Priority Policy for Video Streaming 3. Simulation Environments 3.1. DiffServ in ns-2 3.2. Implementation of IP Policy 3.3. Simulation Topology 3.4. Video Sequences 4. Evaluation 4.1. Basic Experiments 4.2. Influence of Scheduling Mode 4.3. Influence of Rd 4.4. Influence of Dropping Mode 4.5. Influence of Characteristics of Video Sequence 5. Conclusions Acknowledgements References
키워드
Video streaminginner-priorityDiffServRED
저자
Zheng Wan [ School of Information Technology, Jiangxi University of Finance and Economics, Nanchang, China, 330013 ]
보안공학연구지원센터(IJMUE) [Science & Engineering Research Support Center, Republic of Korea(IJMUE)]
설립연도
2006
분야
공학>컴퓨터학
소개
1. 보안공학에 대한 각종 조사 및 연구
2. 보안공학에 대한 응용기술 연구 및 발표
3. 보안공학에 관한 각종 학술 발표회 및 전시회 개최
4. 보안공학 기술의 상호 협조 및 정보교환
5. 보안공학에 관한 표준화 사업 및 규격의 제정
6. 보안공학에 관한 산학연 협동의 증진
7. 국제적 학술 교류 및 기술 협력
8. 보안공학에 관한 논문지 발간
9. 기타 본 회 목적 달성에 필요한 사업
간행물
간행물명
International Journal of Multimedia and Ubiquitous Engineering
간기
월간
pISSN
1975-0080
수록기간
2008~2016
등재여부
SCOPUS
십진분류
KDC 505DDC 605
이 권호 내 다른 논문 / International Journal of Multimedia and Ubiquitous Engineering Vol.10 No.5