TIIS (한국인터넷정보학회)
Current Result Document :
| 한글제목(Korean Title) |
Rate-User-Perceived-Quality Aware Replication Strategy for Video Streaming over Wireless Mesh Networks |
| 영문제목(English Title) |
Rate-User-Perceived-Quality Aware Replication Strategy for Video Streaming over Wireless Mesh Networks |
| 저자(Author) |
Xu Du
Nguyen-Son Vo
Wenqing Cheng
Trung Q. Duong
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| 원문수록처(Citation) |
VOL 05 NO. 11 PP. 2103 ~ 2120 (2011. 11) |
한글내용
(Korean Abstract) |
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영문내용
(English Abstract) |
In this research, we consider the replication strategy for the applications of video streaming in wireless mesh networks (WMNs). In particular, we propose a closed-form of optimal replication densities for a set of frames of a video streaming by exploiting not only the skewed access probability of each frame but also the skewed loss probability and skewed encoding rate-distortion information. The simulation results demonstrate that our method improves the replication performance in terms of user-perceived quality (UPQ) which includes: 1) minimum average maximum reconstructed distortion for high peak signal-to-noise ratio (PSNR), 2) small reconstructed distortion fluctuation among frames for smooth playback, and 3) reasonable average maximum transmission distance for continuous playback. Furthermore, the proposed strategy consumes smaller storage capacity compared to other existing optimal replication strategies. More importantly, the effect of encoding rate is carefully investigated to show that high encoding rate does not always gain high performance of replication for video streaming. |
| 키워드(Keyword) |
Rate-distortion
replication strategy
user-perceived quality
wireless mesh networks
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| 파일첨부 |
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