The impact of software radio on wireless networking

  • Authors:
  • Vanu G. Bose

  • Affiliations:
  • Massachusetts Institute of Technology, Cambridge, MA

  • Venue:
  • ACM SIGMOBILE Mobile Computing and Communications Review
  • Year:
  • 1999

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Abstract

A software radio is a wireless communications device in which some or all of the physical layer functions are implemented in software. The flexibility provided by the software implementation enables a single device to interoperate with other devices using different wireless physical layer technologies, by simply invoking the appropriate software. A mobile computing device equipped with a software radio would have access to a wide range of connectivity options including cellular, wireless LAN and satellite systems. This would not only enable seamless anytime, anywhere connectivity, but also provide users the flexibility of choosing from the available connectivity options to best suit their price/performance requirements. Most software radio research to date has been driven by military and commercial cellular applications. Mobile networking applications require additional functionality present new software radio design constraints. This paper reviews existing software radio research, describes the SpectrumWare software radio system and identifies some important research challenges that must be addressed in order to apply software radio research to mobile networking applications.