TY  - JOUR
T1  - Design of Distributed Root Protograph LDPC Codes for Block Fading Channels
AU  - Lee, Yejin 
AU  - Han, Minseok 
AU  - Park, Hosung 
JO  - The Journal of Korean Institute of Communications and Information Sciences
PY  - 2025
DA  - 2025/1/1
DO  - 10.7840/kics.2025.50.11.1735
KW  - Block fading channel
KW  - Low-Density
KW  - Parity-Check code
KW  - Rootcheck
KW  - 
KW  - Diversity order
KW  - Outage probability.
AB  - In this letter, we propose a distributed root protograph (DRP) design for block fading (BF) channels that starts from the conventional RP structure to support a higher code rate of 1/( − 1). Although the proposed codes do not achieve full diversity, they attain the maximum diversity for given code rate and show a slope of frame error rate (FER) approaching the channel outage probability.