Bit energy distribution effects in progressively encoded video frame transmissions
2002 (English)In: Proceedings: IEEE International Conference on Multimedia and Expo : August 26 - 29, 2002, Swiss Federal Institute of Technology, Lausanne, Switzerland, Piscataway, NJ: IEEE Communications Society, 2002, Vol. 1, 269-272 p.Conference paper (Refereed)
We investigate physical layer opportunities resulting from multimedia streams which use progressive coding. With such progressively encoded video frames the location of the first bit error is more important than the overall bit error probability. This makes the expected error free length a reasonable metric for performance optimization. One physical layer opportunity is the adjustment of bit energy within data frames. For wireless links nonuniform bit-energy distributions result in a flexible solution that may be used in conjunction with channel coding. We identify system gains to be achieved with nonuniform bit energy distribution optimizations and also show that a simplified frame truncation technique may be used without significant loss of quality.
Place, publisher, year, edition, pages
Piscataway, NJ: IEEE Communications Society, 2002. Vol. 1, 269-272 p.
Research subject Signal Processing
IdentifiersURN: urn:nbn:se:ltu:diva-34614DOI: 10.1109/ICME.2002.1035770Local ID: 8db69310-a01d-11db-8975-000ea68e967bISBN: 0-7803-7304-9OAI: oai:DiVA.org:ltu-34614DiVA: diva2:1007865
IEEE International Conference on Multimedia and Expo : 26/08/2002 - 29/08/2002
Godkänd; 2002; 20070109 (ysko)2016-09-302016-09-30Bibliographically approved