Crosstalk Rejection in 3-D-Stacked Interchip Communication with Blind Source Separation

Kamal El-Sankary, Tetsuya Asai, Masato Motomura, Tadahiro Kuroda

    Research output: Contribution to journalArticlepeer-review

    3 Citations (Scopus)


    A blind source separation (BSS) is proposed to reject the crosstalk between inductive-coupling channels in 3-D systems. The phase and permutation ambiguities inherent to BSS are compensated for in the proposed technique. A continuous-time natural gradient BSS with integrator output swing bounding, which is amenable for high-speed implementation, is also proposed. Techniques to reduce the implementation complexity for a large channel array are presented. The proposed technique shows substantial improvement results for crosstalk rejection in a high-crosstalk-coupling environment. In addition, for a 3 × 3 array channel with 1 Gb/s/channel, with a crosstalk-to-signal ratio of -3 dB, a bit-error rate of 10-11 is obtained compared to 10-4 without BSS.

    Original languageEnglish
    Article number7064710
    Pages (from-to)726-730
    Number of pages5
    JournalIEEE Transactions on Circuits and Systems II: Express Briefs
    Issue number8
    Publication statusPublished - 2015 Aug 1


    • Blind source separation (BSS)
    • crosstalk rejection
    • interchip communication
    • three-dimensional (3-D) integrated circuits (ICs)

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering


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