Research and developments of software-defined radio technologies in Japan

Nobuo Nakajima, Ryuji Kohno, Shuji Kubota

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)


Software-defined radio technologies are attractive for future mobile communication systems because of reconfigurable and multimode operation capabilities. The reconfigurable feature is useful for enhancing functions of equipment without replacing hardware. Multimode operation is essential for future wireless terminals because a number of wireless communication standards will still coexist. Recently, research efforts on SDR have become very active in Japan, and various kinds of SDR prototypes have been developed. This article introduces the trends of Japanese wireless communication systems and the role of SDR technologies for the future wireless systems. R&D activities for the SDR in the field of academia and industry are also presented including examples of SDR prototypes.

Original languageEnglish
Pages (from-to)146-154
Number of pages9
JournalIEEE Communications Magazine
Issue number8
Publication statusPublished - 2001 Aug 1
Externally publishedYes

ASJC Scopus subject areas

  • Computer Science Applications
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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