Computer Science – Information Theory
Scientific paper
2011-07-25
Computer Science
Information Theory
5 pages, 4 figures, submitted to ICNC2012
Scientific paper
Spatially-coupled low-density lattice codes (LDLC) are constructed using
protographs. Using Monte Carlo density evolution using single-Gaussian
messages, we observe that the threshold of the spatially-coupled LDLC is within
0.22 dB of capacity of the unconstrained power channel. This is in contrast
with a 0.5 dB noise threshold for the conventional LDLC lattice construction.
Kasai Kenta
Kurkoski Brian M.
Sakaniwa Kohichi
Uchikawa Hironori
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