Spatially Coupled Serially Concatenated Codes: Performance Evaluation and VLSI Design Tradeoffs

Mojtaba Mahdavi, Stefan Weithoffer, Matthias Herrmann, Liang Liu, Ove Edfors, Norbert Wehn, Michael Lentmaier

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskriftPeer review

Sammanfattning

Spatially coupled serially concatenated codes (SC-SCCs) are constructed by coupling several classical turbo-like component codes. The resulting spatially coupled codes provide a close-to-capacity performance and low error floor, which have attracted a lot of interest in the past few years. The aim of this paper is to perform a comprehensive design space exploration to reveal different aspects of SC-SCCs, which is missing in the literature. More specifically, we investigate the effect of block length, coupling memory, decoding window size, and number of iterations on the decoding performance, complexity, latency, and throughput of SC-SCCs. Moreover, for the first time, we demonstrate how to implement this class of codes in the hardware. To this end, we propose two decoding algorithms for the SC-SCCs along with the VLSI architectures. For each decoder architecture we investigate different implementation choices and accordingly evaluate the corresponding throughput, latency, and silicon area in a 12 nm FinFET technology. Finally, a design comparison followed by various design tradeoffs are presented.
Originalspråkengelska
Sidor (från-till)1-14
Antal sidor14
TidskriftIEEE Transactions on Circuits and Systems I: Regular Papers
StatusSubmitted - 2021 jul

Ämnesklassifikation (UKÄ)

  • Kommunikationssystem
  • Signalbehandling
  • Annan elektroteknik och elektronik

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