TY - GEN
T1 - Soft OSD-Sliding Window Decoding for Staircase LDPC Codes in Deep Space Communications
AU - Zhang, Yaosheng
AU - Jiao, Jian
AU - Wang, Yasong
AU - Wang, Ye
AU - Lu, Rongxing
AU - Zhang, Qinyu
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - In this paper, we propose a soft ordered statistic decoder (SOSD) sliding window decoding (SWD) algorithm for staircase low density parity check (LDPC) codes in deep space optical communications. First, according to the relative position variation of Earth-to-Mars during a conjunction cycle, we model a related optical channel model by calculating the scintillation index in the Gamma-Gamma distribution, which divide three states due to the Sun-Earth-Mars (SEM) angle. Then, we propose the SOSD-SWD algorithm for the rate-adaptive staircase LDPC codes for the channel model, which can approach to 10-4bit error rate (BER) under the three channel states with adjustable decoding parameters. Simulation results validate the impact of different parameters of the SOSD-SWD algorithm, and shed light to tradeoff the achievable BER and complexities under different channel conditions, and the proposed SOSD-SWD algorithm can achieve lower BER than the related SWD algorithms for staircase LDPC codes.
AB - In this paper, we propose a soft ordered statistic decoder (SOSD) sliding window decoding (SWD) algorithm for staircase low density parity check (LDPC) codes in deep space optical communications. First, according to the relative position variation of Earth-to-Mars during a conjunction cycle, we model a related optical channel model by calculating the scintillation index in the Gamma-Gamma distribution, which divide three states due to the Sun-Earth-Mars (SEM) angle. Then, we propose the SOSD-SWD algorithm for the rate-adaptive staircase LDPC codes for the channel model, which can approach to 10-4bit error rate (BER) under the three channel states with adjustable decoding parameters. Simulation results validate the impact of different parameters of the SOSD-SWD algorithm, and shed light to tradeoff the achievable BER and complexities under different channel conditions, and the proposed SOSD-SWD algorithm can achieve lower BER than the related SWD algorithms for staircase LDPC codes.
KW - Deep space optical communications
KW - channel modeling
KW - sliding window decoding
KW - soft ordered statistics decoder
KW - staircase LDPC codes
UR - https://www.scopus.com/pages/publications/85172993946
U2 - 10.1109/ICCC57788.2023.10233519
DO - 10.1109/ICCC57788.2023.10233519
M3 - 会议稿件
AN - SCOPUS:85172993946
T3 - 2023 IEEE/CIC International Conference on Communications in China, ICCC 2023
BT - 2023 IEEE/CIC International Conference on Communications in China, ICCC 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE/CIC International Conference on Communications in China, ICCC 2023
Y2 - 10 August 2023 through 12 August 2023
ER -