Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
(a) and (b) correspond to the hard-decision and soft-decision decoders, respectively. The symbols (circle, square, triangle, and cross) are the simulation results. The curves were estimated with the results for the depolarizing channel (see the text). Different symbols (colors) correspond to different concatenation levels and the lowest bold lines correspond to level 5, as shown in the figures.
