Michael Ford wrote:
So, I'm trying tomake a system where nodes communicate, not on set
channels, but on as much of the spectrum as they can use based on the
level of interference. For example, we know that 802.11 divides the
spectrum into 13 channels with the center frequencies set at 5MHz
apart. In my ideal situation, a network with only two nodes would be
able to use the entire spectrum to send data, a network with 4 nodes
and two transmissions would divide the spectrum in half for each
transmission, and so on and so forth.
In order to do this, I need to be able to scan for interference at
specific channels/frequencies to determine whether or not they're
available. Before I get too deep into the project, is this even
possible with the USRP motherboard and the RFX2400 transceiver board?
I know we have the RSSI circuit onboard, but I don't know on which
frequencies it scans.
The RSSI on the motherboard will tell you the power within approx. +/-
15 MHz from your carrier. You can also get a digital RSSI which will
tell you the power within your signal of interest.
Matt
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