3 research outputs found
Broadband Video Streaming with Built-in Resiliency
Mobile TV services are being actively developed for a variety of last hop, broadband wireless technologies. Application layer error control mechanisms such as Broadband Video Streaming seek to reduce packet loss from raw UDP transport. This paper goes further than existing streaming protocols by integrating source-coded error resilience through data-partitioning and intra-refresh macroblocks with the error control mechanism. Results show that for a temporally complex sequence, up to 6.23 dB gain in video quality (PSNR) can result, depending on burst error lengths across an IEEE 802.16e link
Broadband Video Streaming with Built-in Resiliency
Mobile TV services are being actively developed for a variety of last hop, broadband wireless technologies. Application layer error control mechanisms such as Broadband Video Streaming seek to reduce packet loss from raw UDP transport. This paper goes further than existing streaming protocols by integrating source-coded error resilience through data-partitioning and intra-refresh macroblocks with the error control mechanism. Results show that for a temporally complex sequence, up to 6.23 dB gain in video quality (PSNR) can result, depending on burst error lengths across an IEEE 802.16e link
A simple wireless broadband video streaming scheme for IPTV
Video streaming for IPTV is transferring to wireless mobile devices. This process poses questions of the video quality that will result and the suitability of the existing pseudo-streaming schemes for video transfer. This paper sets out the case for wireless broadband video streaming based on a simple negative acknowledgment (NACK) scheme, which for convenience is called broadband video streaming (BVS). The paper shows that provided the roundtrip time is limited then BVS has the better features of UDP transport and standardized Datagram Congestion Control Protocol (DCCP). For single link exchange, BVS is also superior to multiple DCCP connections in terms of video quality, though the use of multiple connections bring adequate wireless channel utilization. Thus, assuming content caching close to the broadband wireless access network then simple BVS is worthy of future elaboration