High-Throughput Low-Complexity Four-Parallel Reed-Solomon Decoder Architecture for High-Rate WPAN Systems

Chang-Seok CHOI  Hyo-Jin AHN  Hanho LEE  

IEICE TRANSACTIONS on Communications   Vol.E94-B   No.5   pp.1332-1338
Publication Date: 2011/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.1332
Print ISSN: 0916-8516
Type of Manuscript: PAPER
Category: Network
forward error correction (FEC),  Reed-Solomon (RS),  decoder,  mmWAVE,  WPAN,  

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This paper presents a high-throughput low-complexity four-parallel Reed-Solomon (RS) decoder for high-rate WPAN systems. Four-parallel processing is used to achieve 12-Gbps data throughput and low hardware complexity. Also, the proposed pipelined folded Degree-Computationless Modified Euclidean (fDCME) algorithm is used to implement the key equation solver (KES) block, which provides low hardware complexity for the RS decoder. The proposed four-parallel RS decoder is implemented 90-nm CMOS technology optimized for a 1.2 V supply voltage. The implementation result shows that the proposed RS decoder can be operated at a clock frequency of 400 MHz and has a data throughput 12.8-Gbps. The proposed four-parallel RS decoder architecture has high data processing rate and low hardware complexity. Therefore it can be applied in the FEC devices for next-generation high-rate WPAN systems with data rate of 10-Gbps and beyond.