caa a22 4500 445822120 CHVBK 20180317145247.0 cr unu---uuuuu 170323e20111201xx s 000 0 eng 10.1007/s00779-011-0367-3 doi (NATIONALLICENCE)springer-10.1007/s00779-011-0367-3 Robust video communication for ubiquitous network access [Elektronische Daten] [Hannadi Samek, Martin Fleury, Mohammed Ghanbari] Ubiquitous network access implies that video can be streamed to portable devices whether they are moving outdoors or docked at home. Unfortunately, broadband wireless channels and their wired alternatives present a hostile environment for video communication, which manifests itself in error bursts. This paper presents a robust application layer, channel-coding scheme suitable for data-partitioned, compressed video. Data partitioning prioritizes the more important data within a compressed bitstream. In the scheme, the more important compressed data are protected prior to communication over an access network. In particular, window-growth rateless codes are used. This form of rateless code can be incrementally scaled to reflect the importance of the data being protected. The paper gives details of the scheme for achieving this in the context of an H.264/AVC codec's picture types and structures. The paper considers how best to apply the scheme to H.264/AVC's data-partitioning modes in a practical manner. Simulations of error-prone channels show that the proposed unequal protection scheme achieves several dBs of improvement in video quality, when compared with equal protection. The simulations modeled both wireless and wired access networks. Springer-Verlag London Limited, 2011 Data-partitioned video nationallicence FEC nationallicence Rateless channel coding nationallicence Window-growth codes nationallicence Video streaming nationallicence Samek Hannadi University of Aleppo, Aleppo, Syria aut Fleury Martin University of Essex, CO4 3SQ, Colchester, UK aut Ghanbari Mohammed University of Essex, CO4 3SQ, Colchester, UK aut Personal and Ubiquitous Computing Springer-Verlag 15/8(2011-12-01), 811-820 1617-4909 15:8<811 2011 15 779 https://doi.org/10.1007/s00779-011-0367-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00779-011-0367-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Samek Hannadi University of Aleppo, Aleppo, Syria aut NATIONALLICENCE 700 1- Fleury Martin University of Essex, CO4 3SQ, Colchester, UK aut NATIONALLICENCE 700 1- Ghanbari Mohammed University of Essex, CO4 3SQ, Colchester, UK aut NATIONALLICENCE 773 0- Personal and Ubiquitous Computing Springer-Verlag 15/8(2011-12-01), 811-820 1617-4909 15:8<811 2011 15 779 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer