Title :
Firing the genie: Two-phase short-blocklength convolutional coding with feedback
Author :
Williamson, Adam R. ; Tsung-Yi Chen ; Wesel, Richard D.
Author_Institution :
Dept. of Electr. Eng., Univ. of California, Los Angeles, Los Angeles, CA, USA
Abstract :
In an effort to account for the latency cost of error detection at short blocklengths, we simulate a two-phase feedback-based incremental redundancy scheme. This scheme consists of communication and confirmation phases, as used in the error exponent literature, and allows messages to be decoded with high reliability. Simulation results of tail-biting convolutional codes on the AWGN channel are shown, which demonstrate that the two-phase scheme can deliver throughput surpassing the random coding lower bound on variable-length feedback (VLF) code achievability. A comparison with simulation of CRC-based error detection is also presented.
Keywords :
AWGN channels; convolutional codes; error detection codes; random codes; telecommunication network reliability; wireless channels; AWGN channel; CRC-based error detection; VLF code achievability; confirmation phases; error exponent literature; random coding lower bound; reliability; short blocklengths; tail-biting convolutional codes; two-phase feedback-based incremental redundancy scheme; two-phase short-blocklength convolutional coding; variable-length feedback code achievability; Convolutional codes; Maximum likelihood decoding; Nickel; Receivers; Throughput; Transmitters;
Conference_Titel :
Information Theory and Applications Workshop (ITA), 2013
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4673-4648-1
DOI :
10.1109/ITA.2013.6502986
