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SNR and Sora RRS feed

  • Question

  • Hi there,

    Looking at the /bb/ directory in 802.11b's code, specifically bbb_rx.c and bbb_rx_intrinsic.c, I'm trying to find any specific mention of where SNR in any given channel is actually calculated.

    Do you have any tips? I would like to be able to mathematically compute the SNR in a channel at any given time using SORA and the 802.11b package.

    Thanks,

    Cory

     

    Friday, August 27, 2010 2:28 PM

All replies

  • Hi Cory,

    Currently, SNR calculation is not included in the sample. However, since you can access all the baseband waveforms (I/Q), you will be able to make any calculation you need. Basically, SNR is defined as Signal to Noise ratio. Therefore, if you can identify which part of the waveform is the signal and which part is noise, you can simply calculate SNR as signal/noise. And in 802.11, SNR is usually calculated once for one packet, thought in theory SNR could be calculated in any time scale.

    Hope my message will provide you some help.

    -Jiansong

    Thursday, September 16, 2010 8:34 AM