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Re: [Discuss-gnuradio] power control when packets transmitting

From: Matt Ettus
Subject: Re: [Discuss-gnuradio] power control when packets transmitting
Date: Fri, 02 May 2008 10:32:48 -0700
User-agent: Thunderbird (X11/20080226)

KC Huang wrote:
> Hi:
> My recent research project focuses on how to implement CogNet on
> GNUradio platform. As u know, the concept of cognitive radio is that
> the parameters can be adjusted according to different situations. Such
> as controlling power, switching freq and modulation when the packets
> are transmitting. But I am not sure if GNUradio platform can adjust
> these parameters in the middle of tranmission. I searched previous
> threads and found that metadata structure can do that because of
> pipeline transmission. Are there any ways to adjust parameters without
> using mblock format because I don't think mblock is mature now?

The easiest and quickest way to adjust power is to control the amplitude
of the samples you send to the USRP. This can be done in a signal
processing block and does not need m-blocks.


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