Enabling simultaneous cooling and data transmission in the terahertz band for board-to-board communications

Vitaly Petrov, Joonas Kokkoniemi, Dmitri Moltchanov, Janne Lehtomäki, Yevgeni Koucheryavy

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    Abstract A system enabling simultaneous cooling and board-to-board communications is proposed and analyzed. It is shown that hollow pipes used in computer cooling systems can be applied for communications with extreme data rates at distances up to tens of centimeters. This is done by using wireless communications in the terahertz frequency band, 0.1 – 10 THz. The experiments were performed in order to observe how straight and curved pipes of different diameters and lengths affect THz signals propagating inside the pipes. The measured pulses were recorded and used in numerical evaluation of bit error rate and throughput taking into account the effect of all possible combinations of N previous symbols. The numerical results show the dependency of the intersymbol interference on the delay profile of the channel and on the symbol period. The results demonstrate that even with simple on-off keying modulation the throughput reaches few terabits per second with qualitatively low bit error rates. This enables communications between rate-hungry electronics inside computers such as central and graphical processing units while simultaneously providing the cooling functionality.
    Original languageEnglish
    Pages (from-to)9-18
    JournalPhysical Communication
    Volume22
    Early online date21 Nov 2016
    DOIs
    Publication statusPublished - Mar 2017
    Publication typeA1 Journal article-refereed

    Keywords

    • Board-to-board communication
    • Terahertz band communications
    • Computer architecture
    • Cooling pipes

    Publication forum classification

    • Publication forum level 1

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