Changes between Version 2 and Version 3 of Cognitive Radio Testbed

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Timestamp:
08/06/07 16:29:42 (6 years ago)
Author:
cdietric
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  • Cognitive Radio Testbed

    v2 v3  
    1 [[Image(corteks_logo_white.png, align=inline, width=600px, title="CORTEKS logo", alt="Screenshot")]] 
     1[[Image(corteks_logo_white.png, align=inline, width=300px, title="CORTEKS logo", alt="Screenshot")]] 
     2[[BR]] 
    23 
    34CarlosAguayo, Lizdabel Morales, KyouwoongKim, JosephGaeddert 
    … …  
    56Watch a [http://computing.ece.vt.edu/~jgaeddert/vid/CORTEKS_demo_sm.mov demonstration video] (4.0MB, requires [http://www.apple.com/quicktime/ QuickTime]). 
    67 
    7 [[Image(corteks_setup.png, align=inline, width=600px, title="CORTEKS setup", alt="Screenshot")]] 
     8[[Image(corteks_setup.png, align=inline, width=400px, title="CORTEKS setup", alt="Screenshot")]] 
     9[[BR]] 
    810 
    911CoRTekS (Cognitive Radio Tektronix System) is a cognitive radio testbed using Tektronix test equipment.  The transmitter consists of two arbitrary waveform generators (AWGs), a mixer, a few filters, and an amplifier.  The receiver is a real-time spectrum analyzer (RSA) that demodulates and senses the channel for interference.  All equipment is connected through GPIB to a PC running OSSIE (TAO) on Windows. 
    1012 
    11 [[Image(corteks_display_1.png, align=inline, width=600px, title="CORTEKS display", alt="Screenshot")]]inline:corteks_display_1.png 
     13[[Image(corteks_display_1.png, align=inline, width=400px, title="CORTEKS display", alt="Screenshot")]] 
     14[[BR]] 
    1215 
    1316A neural network-based cognitive engine running on the PC decides which parameters are best for the given channel state.  The radio can change modulation type, transmission power, frequency, and bandwidth to avoid interference and optimize three main goals: