An Ultimate-Shannon-Limit-Approaching Gbps Throughput Encoder/Decoder System

S. Jiang, P. W. Zhang, Francis C.M. Lau, C. W. Sham

Research output: Journal article publicationJournal articleAcademic researchpeer-review

2 Citations (Scopus)


A turbo-Hadamard code (THC) is a type of low-rate channel code with capacity approaching the ultimate Shannon limit, i.e., -1.59 dB. In this brief, we investigate the hardware design of a turbo-Hadamard encoder/decoder system. The entire system has been implemented on an FPGA board. A bit error rate (BER) of 10-5 can be achieved at $E_{b}/N_{0} = 0.04$ dB with a throughput of 3.2 Gbps or at $E_{b}/N_{0} = -0.45$ dB with a throughput of 1.92 Gbps.

Original languageEnglish
Article number8936394
Pages (from-to)2169-2173
Number of pages5
JournalIEEE Transactions on Circuits and Systems II: Express Briefs
Issue number10
Publication statusPublished - Oct 2020


  • channel codes
  • Turbo codes

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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