Vertical link on/off control methods for wireless 3-D NoCs

Hao Zhang, Hiroki Matsutani, Yasuhiro Take, Tadahiro Kuroda, Hideharu Amano

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

1 Citation (Scopus)


Low-power techniques are proposed for the wireless three-dimensional Network-on-Chips (wireless 3-D NoCs), in which routers on the same chip are connected with metal wires while those on the different chips are connected wirelessly using the inductive-coupling. For saving power consumption of the vertical link, the clock and power supplies to the transmitter are stopped when their utilizations are between a specified range. Meanwhile, the whole wireless vertical link will be shut down when the utilization is lower than the threshold. In order to keep performance, on-demand activation is used in this paper. As long as flit comes, the dormant data transmitter or the whole vertical link will be activated immediately without any judgement. Full-system many-core simulations using power parameters derived from a real chip implementation show that the proposed low-power techniques reduce the power consumption by 23.4%-29.3%, while the performance overhead is less than 2.4%.

Original languageEnglish
Title of host publicationArchitecture of Computing Systems, ARCS 2012 - 25th International Conference, Proceedings
Number of pages13
Publication statusPublished - 2012 Feb 28
Event25th International Conference on Architecture of Computing Systems, ARCS 2012 - Munich, Germany
Duration: 2012 Feb 282012 Mar 2

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume7179 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349


Other25th International Conference on Architecture of Computing Systems, ARCS 2012

ASJC Scopus subject areas

  • Theoretical Computer Science
  • Computer Science(all)


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