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Content and Network Adaptive Cross-layer Optimization for Video Transmission
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- 발행기관
- 보안공학연구지원센터(IJHIT) 바로가기
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- 간행물
- International Journal of Hybrid Information Technology 바로가기
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- 통권
- Vol.9 No.11 (2016.11)바로가기
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- 페이지
- pp.1-12
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- 저자
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- 언어
- 영어(ENG)
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- URL
- https://www.earticle.net/Article/A291714
※ 원문제공기관과의 협약기간이 종료되어 열람이 제한될 수 있습니다.
원문정보
초록
- 영어
- A cross-layer optimization video transmission scheme, which includes two mechanisms, is proposed in this paper. The first is the encoding adjustment mechanism to handle buffer insufficiency. Large frames are divided into several sub-frames and the maximum number of packets in these sub-frames depends on the minimum buffer size in forwarding path. In addition, sending time of adjacent frames or sub-frames should be separated. And time intervals between adjacent frames or sub-frames are determined by the numbers of packets those frames or sub-frames have. The second is the priority based transmission mechanism to handle bandwidth insufficiency. Different dropping probabilities or scheduling opportunities are assigned to different frame types. Less important frames always have a high dropping probability or a small scheduling opportunity. In performance evaluation, various video sequences, buffer sizes and bandwidth reservations are employed. Simulation results verify that: (1) Cross-layer optimization is adaptive to different video sequences, buffer sizes and bandwidth reservations. That is to say, it is a content and network adaptive scheme. (2) Proposed scheme outperforms existing schemes significantly, especially when buffer size is small or bandwidth reservation is large. (3) A further advantage is that priority based transmission mechanism enhances video decoding quality while receives less packets. Thus it is friendly to other streams.
목차
Abstract
1. Introduction
2. Motivation
3. Cross-Layer Optimization
3.1. Mechanism Answering to Insufficient Buffer
3.2. Mechanism Answering to Insufficient Bandwidth
4. Simulation Settings
4.1. Simulation Environments
4.2. Video Sequences
4.3. Comparative Schemes
5. Performance Evaluation
5.1. Results under Various Bandwidth Reservations
5.2. Results under Various Buffer Sizes
6. Conclusions
References
저자
간행물 정보
발행기관
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- 발행기관명
- 보안공학연구지원센터(IJHIT) [Science & Engineering Research Support Center, Republic of Korea(IJHIT)]
- 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
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- 간행물명
- International Journal of Hybrid Information Technology
- 간기
- 격월간
- pISSN
- 1738-9968
- 수록기간
- 2008~2016
- 십진분류
- KDC 505 DDC 605
이 권호 내 다른 논문 / International Journal of Hybrid Information Technology Vol.9 No.11
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