Changes between Version 25 and Version 26 of GEC16Agenda/WiMAX-Tutorial/Streamload/08


Ignore:
Timestamp:
07/17/13 20:06:47 (6 years ago)
Author:
Fraida Fund
Comment:

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  • GEC16Agenda/WiMAX-Tutorial/Streamload/08

    v25 v26  
    33== Revise, Repeat ==
    44
    5 After looking at the measurements collected by the 'wxmstat' application, we realize that the signal strength on the nodes is too high. The WiMAX CINR (a measure of signal quality) is 30 dB, which is very high, and so the maximum number of SVC layers (2) is downloaded in all cases. We want a more realistic environment, so we turn down the base station transmit power from 40 dBm to 35 dBm:
     5After looking at the measurements collected by the 'wxmstat' application, we realize that the signal strength on the nodes is too high. The WiMAX CINR (a measure of signal quality) is 30 dB, which is very high, and so the maximum number of SVC layers (2) is downloaded in all cases. We want a more realistic environment, so we turn down the base station transmit power from 40 dBm to 25 dBm:
    66
    77
    88{{{
    9 wget -qO- "http://wimaxrf:5052/wimaxrf/bs/set?bs_tx_power=35"
     9wget -qO- "http://wimaxrf:5052/wimaxrf/bs/set?bs_tx_power=25"
    1010wget -qO- "http://wimaxrf:5052/wimaxrf/bs/restart"
    1111}}}
    1212
    13 Confirm that the base station power is now set to 35:
     13Confirm that the base station power is now set to 25:
    1414{{{
    1515wget -qO- "http://wimaxrf:5052/wimaxrf/bs/get?bs_tx_power" | xml_pp