Abstract
This paper proposes a high-speed and area-efficient three-parallel Reed-Solomon (RS) decoder using the simplified degree computationless modified Euclid (S-DCME) algorithm for the key equation solver (KES) block. To achieve a high throughput rate, the inner signals, such as the syndrome, error locator and error value polynomials, are computed in parallel. In addition, the key equations are solved by using the S-DCME algorithm to reduce the hardware complexity. To handle the many problems caused by applying the S-DCME algorithm to the KES block, we modify the architectures of some of the blocks in the three-parallel RS decoder. The proposed RS architecture can reduce the hardware complexity by about 80% with respect to the KES block. In addition, the proposed RS architecture has an approximately 25% shorter latency than the conventional parallel RS architectures.
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