상세정보
학술지
Cooperative Routing with Video Complexity for Heterogeneous Motion-level Streaming
- 발행일
- 201603
- 출처
- Computer Communications, v.77, pp.1-9
- ISSN
- 0140-3664
- 출판사
- Elsevier Science
- 협약과제
- 16ZE1200, 글로벌 ICT 선도를 위한 R&D 기획역량 제고, 한성수
- 초록
- Cooperative relay is a promising technique that can improve network capacity in multi-hop wireless networks. However, conventional video streaming schemes on cooperative relay networks do not consider the video complexity of each video sequence. In this paper, we develop and experimentally evaluate a video streaming scheme that considers video complexity over a cooperative multi-hop relay network. We first develop a video distortion model taking into account the video complexity of the video sequences. Then, we propose a flow-routing algorithm for heterogeneous motion-level video streams in multi-hop cooperative networks. To evaluate the video routing performance for heterogeneous motion-level video sequences, we conduct experimental simulations with the proposed routing algorithm and a video distortion model. Numerical results show that network performance improves when video sequences are routed while considering heterogeneous motion levels to maximize the minimum peak signal-to-noise ratio (PSNR) value for the video sessions. The simulation results also show that the adoption of cooperative relays and a hop-count limitation can also improve the routing performance of video streams.
- KSP 제안 키워드
- Cooperative Networks, Multi-hop relay network, Multi-hop wireless network, Network performance, Numerical results, Peak-Signal-to-Noise-Ratio(PSNR), Routing algorithm, Routing performance, Signal noise ratio(SNR), Video complexity, cooperative relay networks