Abstract
Data-partitioning of IPTV video streams is a way of providing graceful quality degradation in a form that will work in good and difficult wireless channel conditions, as experienced by mobile devices. This paper’s proposal is to combine redundant slice protection along with an adaptive channel coding scheme that is also proposed in the paper. Adaptive channel coding is achieved by retransmission when necessary of additional redundant data to reconstruct corrupted packets. In the proposal, outright packet loss is provided for by a form of redundant slice protection. The paper finds that it is preferable: not to simply protect only the highest priority packets; that a moderate quantization level should be employed; and that video quality is differentiated by content type. It is important also to configure the partitioning correctly to remove inter-partition dependencies when possible.
Highlights
Data-partitioning of Internet Protocol TV (IPTV) video streams is a way of providing graceful quality degradation in a form that will work in good and difficult wireless channel conditions, as experienced by mobile devices
This paper proposes an error-resilience scheme for video streaming over a wireless access network with application to Internet Protocol TV (IPTV)
We have employed uniform application-layer forward error correction (FEC) but augmented this with redundant slices, which can themselves be withdrawn depending on measured channel conditions
Summary
This paper proposes an error-resilience scheme for video streaming over a wireless access network with application to Internet Protocol TV (IPTV). Outright packet losses can either arise because a packet is lost outright before reaching the receiver, as might occur as a result of entering a deep fade, or because a packet is dropped as a result of overflow at the base station’s send buffer This is the reason why the paper further proposes combining the aforesaid measures with redundant slice protection. Rateless coding is used to allow a single request for additional redundant data This is possible because the proposed protection system is intended for unicast distribution of Internet Protocol TV (IPTV) and because an IEEE 802.16e link, over which the system is demonstrated, represents a low-delay feedback channel by virtue of the time division duplex frames used.
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
