Soft-Decision Low-Complexity Chase Decoders for the RS(255,239) Code
Instituto de Telecomunicaciones y Aplicaciones Multimedia, Universitat Politècnica de València, 46022 Valencia, Spain
ARIES Research Center, Universidad Antonio de Nebrija, 28040 Madrid, Spain
Author to whom correspondence should be addressed.
Received: 17 November 2018 / Revised: 11 December 2018 / Accepted: 13 December 2018 / Published: 21 December 2018
In this work, we present a new architecture for soft-decision Reed–Solomon (RS) Low-Complexity Chase (LCC) decoding. The proposed architecture is scalable and can be used for a high number of test vectors. We propose a novel Multiplicity Assignment stage that sorts and stores only the location of the errors inside the symbols and the powers of
that identify the positions of the symbols in the frame. Novel schematics for the Syndrome Update and Symbol Modification blocks that are adapted to the proposed sorting stage are also presented. We also propose novel solutions for the problems that arise when a high number of test vectors is processed. We implemented three decoders: a
LCC decoder and two decoders that only decode 31 and 60 test vectors of true
LCC decoders, respectively. For example, our
decoder requires 29% less look-up tables in Virtex-V Field Programmable Gate Array (FPGA) devices than the best soft-decision RS decoder published to date, while has a 0.07 dB coding gain over that decoder.
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MDPI and ACS Style
Torres, V.; Valls, J.; Canet, M.J.; García-Herrero, F. Soft-Decision Low-Complexity Chase Decoders for the RS(255,239) Code. Electronics 2019, 8, 10.
Torres V, Valls J, Canet MJ, García-Herrero F. Soft-Decision Low-Complexity Chase Decoders for the RS(255,239) Code. Electronics. 2019; 8(1):10.
Torres, Vicente; Valls, Javier; Canet, Maria J.; García-Herrero, Francisco. 2019. "Soft-Decision Low-Complexity Chase Decoders for the RS(255,239) Code." Electronics 8, no. 1: 10.
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