A Real-Time GPP Software-Defined Radio Testbed for the Physical Layer of Wireless Standards

Roelof Schiphorst, F.W. Hoeksema, Cornelis H. Slump

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    We present our contribution to the general-purpose-processor-(GPP)-based radio. We describe a baseband software-defined radio testbed for the physical layer of wireless LAN standards. All physical layer functions have been successfully mapped on a Pentium 4 processor that performs these functions in real time. The testbed consists of a transmitter PC with a DAC board and a receiver PC with an ADC board. In our project, we have implemented two different types of standards on this testbed, a continuous-phase-modulation-based standard, Bluetooth, and an OFDM-based standard, HiperLAN/2. However, our testbed can easily be extended to other standards, because the only limitation in our testbed is the maximal channel bandwidth of 20 MHz and of course the processing capabilities of the used PC. The transmitter functions require at most 714 M cycles per second and the receiver functions need 1225 M cycles per second on a Pentium 4 processor. In addition, baseband experiments have been carried out successfully.
    Original languageUndefined
    Article number10.1155/ASP.2005.2664
    Pages (from-to)2664-2672
    Number of pages9
    JournalEURASIP journal on applied signal processing
    Issue number16
    Publication statusPublished - 2005


    • EWI-12036
    • IR-64655
    • METIS-227793

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