Coordinated Real-time Monitoring based Network-Adaptive Hop-to-End FEC for Video Streaming over Multi- hop Wireless Networks 2010.4.12 Koh Choi Networked Media Laboratory Dept. of Information & Communications Gwangju Institute of Science & Technology (GIST) 1
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2010.4.12 Koh Choi Networked Media Laboratory Dept. of Information & Communications
Coordinated Real-time Monitoring based Network-Adaptive Hop-to-End FEC for Video Streaming over Multi-hop Wireless Networks. 2010.4.12 Koh Choi Networked Media Laboratory Dept. of Information & Communications Gwangju Institute of Science & Technology (GIST). Problem Space(1/2). Assumption - PowerPoint PPT Presentation
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Coordinated Real-time Monitoring based Network-Adaptive Hop-to-End FEC for
Video Streaming over Multi-hop Wireless Networks
2010.4.12
Koh Choi
Networked Media LaboratoryDept. of Information & Communications
Gwangju Institute of Science & Technology (GIST)
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Problem Space(1/2)
Assumption Static Multi-hop Wireless Networks Coordinator can monitor per-hop delay and packet loss Exist delay-constraint for video streaming buffer Available bandwidth can be measure in E2E path Sending rate R does not exceed available bandwidth RS Coding based packet-level FEC
Video Server Video Receiver
Coordinator
Multi-hop channel diversity
Coordinator operate control signal and receive network information
Which point support FEC operation?
Minimize packet loss Reduce complexity and overhead (from HbH FEC)
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Problem Space(2/2)
Problems Network-Adaptive Hop-to-End(NAHTE) FEC
How to apply NAHTE-FEC in practical environment? We design analytical model to apply NAHTE-FEC in practical
environment. But, analytical model does not provide enough practical model. How to solve this problem?
How to validate NAHTE-FEC in multi-hop wireless testbeds?
FEC enabled Video Streaming Depend on network status in streaming path. How to detect network