Changes between Version 7 and Version 8 of HowTo/virtualMobility


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Timestamp:
Sep 6, 2006, 4:24:10 PM (18 years ago)
Author:
cmdavies
Comment:

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  • HowTo/virtualMobility

    v7 v8  
    1111
    1212It is important to remember that when using this tool packets are still send and received at the hardware layer, and thus you will still need to be sure you're not saturating your radio environment even if you're nodes don't seem to be receiving packets.
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    14 
    1513
    1614== Using the Filter ==
    … …  
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    7270
     71== Virtual Mobility ==
     72
     73Virtual mobility is acheived by simply adjusting the arbitrary topologies in real time. For example, if you wanted to mimic that two nodes started together and then moved further and further apart until they were out of range you would start with both nodes being configured like this:
     74
     75{{{
     76iwpriv ath0 orbitfilter [MAC] 100 90
     77}}}
     78
     79as time continued you would keep dropping the RSSI value (currently 90) until it reached about 15. At that point you would start to drop the percent of packets received. In the following example only 90% of packets are being received and the RSSI is 15.
     80
     81{{{
     82iwpriv ath0 orbitfilter [MAC] 90 15
     83}}}
     84
     85You would continue this trend until the percent of packets received was 0 and the RSSI was 0.
     86
     87{{{
     88iwpriv ath0 orbitfilter [MAC] 0 0
     89}}}
     90