Anytime Source Transmission using UEP-LT Channel Coding
2011 (English)Conference paper (Refereed)
In this paper, we study the design of a causal anytime encoding and decoding scheme for transmission of real-time information over a binary symmetric channel. In particular, our scheme combines unequal-error protection (UEP) rateless codes with sequential belief propagation decoding. In order to minimize delay in decoding and reduce distortion, we formulate and solve a linear programming problem. Moreover, degree distributions of the UEP-rateless codes are optimized since the efficiency of rateless codes highly depends on the corresponding degree distribution. The performance of the proposed scheme is demonstrated by using numerical simulations, and will be compared with an existing work.
Place, publisher, year, edition, pages
2011. 257-262 p.
Anytime transmission, unequal error protection, LT codes, belief propagation, mean-squared error
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-49771ScopusID: 2-s2.0-84907080224ISBN: 978-3-8007-3343-9OAI: oai:DiVA.org:kth-49771DiVA: diva2:460263
11th European Wireless Conference 2011 - Sustainable Wireless Technologies (European Wireless), Vienna, Austria. 27-29 April 2011
FunderEU, FP7, Seventh Framework ProgrammeICT - The Next Generation
QC 201112132011-12-132011-11-292012-03-19Bibliographically approved