Authors:
Miroslav Knežević
;
Vesselin Velichkov
;
Bart Preneel
and
Ingrid Verbauwhede
Affiliation:
K.U. Leuven, ESAT/COSIC and IBBT, Belgium
Keyword(s):
Coding, error-correction codes, rateless codes, online codes.
Related
Ontology
Subjects/Areas/Topics:
Channel Coding, Modulation and Multi-User Detection
;
Detection, Decoding and Diversity Techniques
;
Joint Compression, Coding and Modulation for Wireless Multimedia
;
Mobile Software and Services
;
Telecommunications
;
Testbeds and Deployment
;
Wireless and Mobile Technologies
;
Wireless Information Networks and Systems
Abstract:
We propose a new parameter for optimizing the performance of rateless codes by minimizing latency and data overhead. We call it Latency-Overhead Product (LOP). It is based on ideas used in the analysis of digital circuits. We demonstrate the effectiveness of the LOP parameter for a specific class of rateless codes called Online codes (OC). We give results from experiments in ideal channel and simulated wireless channel with losses. In the second part of our experiments we analyze the relationship between the message block size and the performance of rateless codes. With the results from these experiments we extend the results from the performance of Luby Transform (LT) codes published in (Vukobratovic and Despotovic, 2005) by adding figures for Online codes.