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Changes between Version 7 and Version 8 of WiMAX/30/05


Ignore:
Timestamp:
Feb 9, 2012, 6:11:36 PM (9 years ago)
Author:
Nilanjan Paul
Comment:

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  • WiMAX/30/05

    v7 v8  
    44This experiment runs oml2-iperf on two nodes and collects bandwidth measurements along with the controlled attenuator values. The RSSI seen by the wimax node interface is varied by controlling this attenuator value. At different attenuator values we can measure the down link throughput for the wimax interface.
    55
    6 This experiment script is geared towards nodes on sand box 4 which has nodes with wireless interfaces connected the base station via an rf attenuator matrix. Using this experiment we also measure the throughout at different modulation-coding schemes (MCS) which is set prior to running the experiment script. For detail on changing MCS please refer to http://wimax.orbit-lab.org/wiki/WiMAX/17/13ainfo#BasicSupportServices
     6This experiment script is geared towards nodes on sand box 4 which has nodes with wireless interfaces connected the base station via an rf attenuator matrix. Using this experiment we also measure the throughout at different modulation-coding schemes (MCS) which is set prior to running the experiment script.[[BR]]
    77
    88== Hardware utilized ==
    991. ''Sandbox 4 node1-4'': runs oml2-iperf as server. The wimax interface card is used for measurements.[[BR]]
    10102. ''Sandbox 4 node1-9'': runs oml2-iperf as client.[[BR]]
    11 3. ''RF-attenuator matrix'': this used by the script to attenuate the air interface between the wimax base station and node.
     113. ''RF-attenuator matrix'': this used by the script to attenuate the air interface between the wimax base station and node.[[BR]]
    1212
    1313== Software / scripts requirements worth mentioning ==
     
    25250 S nilanjan  1259 27360  0  80   0 -  1002 pipe_w 10:59 pts/1    00:00:00 grep oml2-server
    2626}}}
     27
     28Before the experiment, the BS parameters can be changed. The following are a few examples commands to control the MCS:[[BR]]
     29* To get the current MCS:
     30{{{
     31wget -O status http://localhost:5052/wimaxrf/mcsProfile
     32}}}
     33
     34* Change downlink MCS to single profile:
     35{{{
     36wget -O status http://localhost:5052/wimaxrf/mcsProfile?dl=15
     37}}}
     38
     39* Change downlink MCS with profile list:
     40{{{
     41wget -O status http://localhost:5052/wimaxrf/mcsProfile?dl=15,17,18
     42}}}
     43* Change uplink MCS to single profile:
     44{{{
     45wget -O status http://localhost:5052/wimaxrf/mcsProfile?dl=15
     46}}}
     47
     48* Change uplink MCS with profile list:
     49{{{
     50wget -O status http://localhost:5052/wimaxrf/mcsProfile?dl=15,17,18
     51}}}
     52
     53* After changing MCS the base station may need a restart:
     54{{{
     55wget http://localhost:5052/wimaxrf/restart
     56}}}
     57
     58For details on changing BS parameters please refer to ''Basic Support Services'' under http://wimax.orbit-lab.org/wiki[[BR]]
     59
     60Although the experiment script can vary the attenuator values, the details on manually changing attenuator values can be found in ''RF Matrix Control Services'' under http://wimax.orbit-lab.org/wiki[[BR]]
    2761
    2862