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High-Efficient Nonbinary LDPC Decoder with Early Layer Decoding Schedule | IEEE Conference Publication | IEEE Xplore

High-Efficient Nonbinary LDPC Decoder with Early Layer Decoding Schedule


Abstract:

Increasing nonbinary low density parity check (NB-LDPC) decoder throughput is challenging. This paper considers nonbinary quasi-cyclic LDPC code features to propose an ea...Show More

Abstract:

Increasing nonbinary low density parity check (NB-LDPC) decoder throughput is challenging. This paper considers nonbinary quasi-cyclic LDPC code features to propose an early layered decoding schedule. The proposed method can eliminate idle time introduced by emptying pipeline stages after each layered decoding process, as well as increase decoder throughput. Layout results using TSMC 90-nm CMOS technology confirm that the proposed decoding schedule improved throughput with almost the same hardware complexity compared to the state-of- the-art NB-LDPC decoder. In particular, the proposed approach achieved considerably improved throughput and efficiency compared with predecessors when both early layer decoding schedule and early decoding termination were enabled.
Date of Conference: 22-28 May 2021
Date Added to IEEE Xplore: 27 April 2021
Print ISBN:978-1-7281-9201-7
Print ISSN: 2158-1525
Conference Location: Daegu, Korea

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