Abstract
AccumulateRepeat-4 Jagged-Accumulate (AR4JA) codes, which are channel codes designed for deep-space communications, are a series of QC-LDPC codes. Structures of these codes' generator matrix can be exploited to design reconfigurable encoders. To make the decoder reconfigurable and achieve shorter convergence time, turbo-like decoding message passing (TDMP) is chosen as the hardware decoder's decoding schedule and normalized min-sum algorithm (NMSA) is used as decoding algorithm to reduce hardware complexity. In this paper, we propose a reconfigurable decoder and present its FPGA implementation results. The decoder can achieve throughput greater than 74 Mbps.
Original language | English (US) |
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Pages (from-to) | 1509-1515 |
Number of pages | 7 |
Journal | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
Volume | E104.A |
Issue number | 11 |
DOIs | |
State | Published - Nov 2021 |
Bibliographical note
Publisher Copyright:© 2021 The Institute of Electronics, Information and Communication Engineers.
Keywords
- QC-LDPC
- decoder
- encoder
- reconfigurable architecture