Unfolded SiBM BCH Decoders for High-Throughput Low-Latency Applications

Paper in proceeding, 2024

Low-latency and area-efficient forward error correction is crucial in high-throughput communication scenarios, such as die-to-die connections. Using t to denote error correction capability, we propose a low-latency t-unfolded simplified inverse-free Berlekamp-Massey (SiBM) decoder, which for t > 3 offers a shorter critical path compared with area-efficient Peterson-based decoders. Synthesized in a 22-nm CMOS process, our unfolded SiBM decoders with t = 4 and 5 provide up to 1.39X higher throughput than their Peterson-based counterparts, at comparable area efficiencies.