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  • Research Article
  • Open Access

Modular Software-Defined Radio

EURASIP Journal on Wireless Communications and Networking20052005:382308

  • Received: 1 October 2004
  • Published:


In view of the technical and commercial boundary conditions for software-defined radio (SDR), it is suggestive to reconsider the concept anew from an unconventional point of view. The organizational principles of signal processing (rather than the signal processing algorithms themselves) are the main focus of this work on modular software-defined radio. Modularity and flexibility are just two key characteristics of the SDR environment which extend smoothly into the modeling of hardware and software. In particular, the proposed model of signal processing software includes irregular, connected, directed, acyclic graphs with random node weights and random edges. Several approaches for mapping such software to a given hardware are discussed. Taking into account previous findings as well as new results from system simulations presented here, the paper finally concludes with the utility of pipelining as a general design guideline for modular software-defined radio.


  • flexible digital baseband signal processing
  • firmware support for reconfiguration
  • computing resource allocation
  • multiprocessing
  • modeling of SDR software

Authors’ Affiliations

Institut für Nachrichtentechnik, Universität Karlsruhe (TH), Karlsruhe, 76128, Germany


© Arnd-Ragnar Rhiemeier 2005

This article is published under license to BioMed Central Ltd. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.