Changes between Version 34 and Version 35 of 802.11/wlan_exp/app_notes/dcf_with_multiple_flows


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Timestamp:
Apr 21, 2014, 5:11:25 PM (10 years ago)
Author:
chunter
Comment:

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  • 802.11/wlan_exp/app_notes/dcf_with_multiple_flows

    v34 v35  
    1414In order to isolate inherent DCF behaviors (our measurement target) from fading and interference (variables we can't control), we run the first set of experiments using wired connections between the RF interfaces of the WARP v3 nodes.
    1515
    16 ||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_multiple_flows/figs:experimental_setup_diag.png, width=500)]]  ||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_multiple_flows/figs:experimental_setup_photo.jpg, width=400)]]  ||
    17 ||  '''Block Diagram'''  ||  '''Photo'''  ||
     16||  [[Image(wiki:802.11/wlan_exp/app_notes/dcf_with_multiple_flows/figs:experimental_setup_photo.jpg, width=400)]]  ||
     17 ||  '''Experimental Setup'''  ||
    1818
    1919The above figure shows the experimental setup. We use an [http://www.minicircuits.com/pdfs/ZAPD-2-272+.pdf Mini-Circuits Power Splitter/Combiner] and discrete attenuators to establish a "shared" medium among the three RF interfaces. The path loss between each pair of nodes is controlled by varying the attenuation values. The inherent path loss through the power splitter/combiner is ~3dB for paths S-1 and S-2 and ~28dB for path 1-2.