Feedback in LT codes for prioritized and non-prioritized data

Jesper Hemming Sørensen, Petar Popovski, Jan Østergaard

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

18 Citations (Scopus)


In this paper feedback in LT codes is investigated. The considered type of feedback is acknowledgments, where information on which symbols have been decoded is given to the transmitter. Our analysis reveals that acknowledgments has a very low potential in LT codes with standard degree distributions. Motivated by this, we analyze the impact of acknowledgments on multi-layer LT codes. In this case, feedback proves advantageous. By using only a single feedback message, it is possible to achieve a significant performance improvement compared to traditional LT codes.
Original languageEnglish
Title of host publicationVehicular Technology Conference (VTC Fall), 2012 IEEE
Number of pages5
PublisherIEEE Press
Publication date2012
ISBN (Print)978-1-4673-1880-8
ISBN (Electronic)978-1-4673-1879-2
Publication statusPublished - 2012
EventIEEE Vehicular Technology Conference - Québec City, Canada
Duration: 3 Sep 20126 Sep 2012
Conference number: 76th


ConferenceIEEE Vehicular Technology Conference
CityQuébec City
SeriesI E E E V T S Vehicular Technology Conference. Proceedings

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