SIGMA system: A multi-OS environment for embedded systems

Wataru Kanda*, Yu Murata, Tatsuo Nakajima

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)


Embedded systems are becoming increasingly sophisticated and there exists a wide variety of requirements such as traditional realtime requirements, multimedia support, etc. It is hard to satisfy all of the requirements by a single OS. Would they be satisfied, the system would become complex and this would cause new problems. A multi OS environment is an efficient approach to deal with these problems and to satisfy complex requirements while keeping the system simple. We propose a multi OS environment named the SIGMA system targeted especially at multiprocessor architectures. On the SIGMA system, guest OSes are corresponded one-to-one with cores. As a result, opposing to existing multi OS environment using virtualization techniques, the system does not degrade the performance of the guest OSes. In addition, the guest OS running on the SIGMA system requires almost no modification to its source code.

Original languageEnglish
Pages (from-to)33-43
Number of pages11
JournalJournal of Signal Processing Systems
Issue number1
Publication statusPublished - 2010 Apr


  • Embedded systems
  • Multi-OS environment
  • Operating systems
  • Symmetric multiprocessors

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Theoretical Computer Science
  • Signal Processing
  • Information Systems
  • Modelling and Simulation
  • Hardware and Architecture


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