A 3.66Gb/s 275mW TB-LDPC-CC decoder chip for MIMO broadcasting communications

Chih Lung Chen*, Yu Cheng Lan, Hsie-Chia Chang, Chen-Yi Lee

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

In this work, a decoder chip for time-invariant tail-biting LDPC convolutional code (TB-LDPC-CC) is proposed. By modifying the layered decoding scheduling, the proposed decoding algorithm can achieve twice faster decoding convergence than the conventional flooding scheduling. Furthermore, 30.77% storage requirement is also reduced due to adaptive channel value addressing employed in memory-based decoder design. The multiple frame sizes handling ability can lower the power and adapt to multiple applications. By integrating these techniques, a TB-LDPC-CC decoder chip supporting three frame sizes is implemented in UMC 90nm CMOS technology. The decoder containing 4 processors occupies 2.18mm2 area and provides maximum throughput 3.66Gb/s under 0.8V supply and 305MHz with a 18.8pJ/bit/proc energy efficiency.

Original languageEnglish
Title of host publicationProceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
Pages153-156
Number of pages4
DOIs
StatePublished - 1 Dec 2013
Event2013 9th IEEE Asian Solid-State Circuits Conference, A-SSCC 2013 - Singapore, Singapore
Duration: 11 Nov 201313 Nov 2013

Publication series

NameProceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013

Conference

Conference2013 9th IEEE Asian Solid-State Circuits Conference, A-SSCC 2013
CountrySingapore
CitySingapore
Period11/11/1313/11/13

Keywords

  • High throughput
  • LDPC-CC
  • Tail-biting

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    Chen, C. L., Lan, Y. C., Chang, H-C., & Lee, C-Y. (2013). A 3.66Gb/s 275mW TB-LDPC-CC decoder chip for MIMO broadcasting communications. In Proceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013 (pp. 153-156). [6691005] (Proceedings of the 2013 IEEE Asian Solid-State Circuits Conference, A-SSCC 2013). https://doi.org/10.1109/ASSCC.2013.6691005