2011/07/25 by Hironori Uchikawa, Brian M. Kurkoski, Uchikawa, Hironori +5
Computer Science · Mathematics · #Cellular Automata and Applications #Cooperative Communication and Network Coding #Error Correcting Code Techniques #FOS: Computer and information sciences #Information Theory (cs.IT) #cs.IT #math.IT
paper · pdf · doi:10.48550/arxiv.1107.4900
5 pages, 4 figures, submitted to ICNC2012
arxiv created 2011/07/25 · openalex publication_date 2011/07/25 · arxiv updated 2011/07/26 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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.