Towards 6G: Configurable High-Throughput Decoder Implementation for SC-LDPC Codes

Spatially-coupled low-density parity-check (SC-LDPC) codes are considered an important candidate for the upcoming 6G standardization, owing to their superior error-correction capability and practical decoding complexity. However, current high-throughput SC-LDPC decoders rely on unrolled architectures tailored to a certain code and thus lack the necessary rate compatibility for wireless communications. In this paper, we present a fully reconfigurable decoder architecture for SC-LDPC codes. This hardware architecture can decode virtually any SC-LDPC code that fits in the allocated memories. Based on simplified routing networks, our SC-LDPC decoder can deliver extensive code length and code rate support and achieve high throughput to satisfy the requirements of 6G.

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