Analysis of body bias control using overhead conditions for real time systems: A practical approach

Carlos Cesar Cortes Torres, Hayate Okuhara, Nobuyuki Yamasaki, Hideharu Amano

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


In the past decade, real-Time systems (RTSs), which must maintain time constraints to avoid catastrophic consequences, have been widely introduced into various embedded systems and Internet of Things (IoTs). The RTSs are required to be energy efficient as they are used in embedded devices in which battery life is important. In this study, we investigated the RTS energy efficiency by analyzing the ability of body bias (BB) in providing a satisfying tradeoff between performance and energy. We propose a practical and realistic model that includes the BB energy and timing overhead in addition to idle region analysis. This study was conducted using accurate parameters extracted from a real chip using silicon on thin box (SOTB) technology. By using the BB control based on the proposed model, about 34% energy reduction was achieved.

Original languageEnglish
Pages (from-to)1116-1125
Number of pages10
JournalIEICE Transactions on Information and Systems
Issue number4
Publication statusPublished - 2018 Apr


  • Body bias
  • Energy-overhead
  • Low power design
  • Silicon-on-insulator
  • Sotb
  • Timeoverhead

ASJC Scopus subject areas

  • Software
  • Hardware and Architecture
  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Artificial Intelligence


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