Dear Colleagues,

Forward error correction (FEC) maintains an extremely crucial role in data transmission systems. In the early 1960s, R. Gallager introduced low-density parity-check (LDPC) codes. After that, in 1996, they were rediscovered by MacKay and Neal. Since their performance in error correction and implementation, LDPC codes have been attracting considerable attention from the research community and have been selected as one of the channel coding schemes for 5G new radio wireless communication.

Polar codes are the first linear block error correcting codes that can provably achieve channel capacity for any given binary-input discrete memoryless channels (B-DMCs). Due to their undoubted significance, research on polar codes has drawn increasing attention from both academia and industry. Compared to classic error correcting codes, polar codes enjoy advantages, including higher coding gain, no error floor, better reliability, and lower power costs under equivalent complexity. However, the channel coding schemes, such as LDPC codes, polar codes, and their variant, will find more commercial development in the future applications beyond 5G. Furthermore, establishing efficient architectures, where there is a trade-off between low hardware complexity, high throughput, low power, etc., represents a present challenge. Therefore, the efficiencies in designs of FEC architectures are greatly desirable.

The main purpose of this Special Issue will focus on seeking high-efficient FEC architecture designs that highlight emerging applications for 5G and beyond. The topics of interest include, but are not limited to, the following:

• Architectures for LDPC codes, polar codes, and their variants;
• Algebraic constructions of low-density graph codes;
• Hardware FEC architectures;
• Non-binary LDPC decoder architectures;
• Hardware implementation of FEC architectures;
• Techniques for reducing hardware complexity of FEC designs;
• Channel-coded modulations.

Prof. Dr. Hanho Lee
Guest Editor

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• Forward error correction (FEC)
• Error correction codes (ECC)
• LDPC codes
• Polar codes
• Non-binary LDPC (NB-LDPC) codes
• Fifth generation (5G)
• New radio (NR)