Vertical Link On/Off Regulations for Inductive-Coupling Based Wireless 3-D NoCs

• ZHANG Hao

  Graduate School of Science and Technology, Keio University

• MATSUTANI Hiroki

  Graduate School of Science and Technology, Keio University

• TAKE Yasuhiro

  Graduate School of Science and Technology, Keio University

• KURODA Tadahiro

  Graduate School of Science and Technology, Keio University

• AMANO Hideharu

  Graduate School of Science and Technology, Keio University

抄録

We propose low-power techniques for wireless three-dimensional Network-on-Chips (wireless 3-D NoCs), in which the connections among routers on the same chip are wired while the routers on different chips are connected wirelessly using inductive-coupling. The proposed low-power techniques stop the clock and power supplies to the transmitter of the wireless vertical links only when their utilizations are higher than the threshold. Meanwhile, the whole wireless vertical link will be shut down when the utilization is lower than the threshold in order to reduce the power consumption of wireless 3-D NoCs. This paper uses an on-demand method, in which the dormant data transmitter or the whole vertical link will be activated as long as a flit comes. 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%.

収録刊行物

• IEICE Transactions on Information and Systems

  IEICE Transactions on Information and Systems E96.D (12), 2753-2764, 2013

  一般社団法人 電子情報通信学会

キーワード

• 3-D network on chip (3-D NoC)
• wireless
• inductive-coupling
• low power
• on/off vertical link

詳細情報

• CRID: 1390282679355929216
• NII論文ID: 130003385446
• DOI: 10.1587/transinf.e96.d.2753
• ISSN: 17451361
• ISSN: 09168532
• Web Site: https://www.jstage.jst.go.jp/article/transinf/E96.D/12/E96.D_2753/_pdf
• 本文言語コード: en
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