Changes between Version 27 and Version 28 of GEC16Agenda/WiMAX-Tutorial/Streamload/08


Ignore:
Timestamp:
07/17/13 20:12:13 (11 years ago)
Author:
Fraida Fund
Comment:

--

Legend:

Unmodified
Added
Removed
Modified
  • GEC16Agenda/WiMAX-Tutorial/Streamload/08

    v27 v28  
    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 25 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 20 dBm:
    66
    77
    88{{{
    9 wget -qO- "http://wimaxrf:5052/wimaxrf/bs/set?bs_tx_power=25"
     9wget -qO- "http://wimaxrf:5052/wimaxrf/bs/set?bs_tx_power=20"
    1010wget -qO- "http://wimaxrf:5052/wimaxrf/bs/restart"
    1111}}}
    1212
    13 Confirm that the base station power is now set to 25:
     13Confirm that the base station power is now set to 20:
    1414{{{
    1515wget -qO- "http://wimaxrf:5052/wimaxrf/bs/get?bs_tx_power" | xml_pp