Changes between Initial Version and Version 1 of GENIWiMaxSpectrumSurveyTool


Ignore:
Timestamp:
01/31/12 16:42:36 (7 years ago)
Author:
agosain@bbn.com
Comment:

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  • GENIWiMaxSpectrumSurveyTool

    v1 v1  
     1[[PageOutline]]
     2
     3= Spectrum Analysis for GENI and Sprint/Clear Networks =
     4
     5
     6== Scope ==
     7
     8Wimax campuses need to scan the spectrum in accordance with the 802.16e Wimax standard . The spectrum_analyzer.tar.gz package, available at http://software.geni.net/local-sw/, captures frequencies in use around campus which then allows a network engineer to pick unused frequencies for planning their network.
     9
     10== Requirements ==
     11
     12A Linux netbook with an Intel 6250 WiMAX modem (internal or external), and a base WiMAX image successfully loaded or installed. This base image must capable of scanning for all networks in the area, rather than just the GENI network. Instructions for installing a new base image can be found at http://groups.geni.net/geni/wiki/OMFWiMAXExperiments#a9.Loadingsoftwareonthemobilenode
     13
     14
     15You may download a custom image that includes the Wimax driver and the spectrum_analyzer.tar.gz package  at http://wimax.orbit-lab.org/downloads/spectrum_analysis.ndz
     16
     17
     18
     19== Performing Analysis ==
     20
     21Install the image, if required, and download the spectrum_analyzer.tar.gz package. Enter the directory where the package is installed and run the command:
     22
     23{{{
     24./spectrum_analyzer.sh <string describing location>
     25}}}
     26
     27<string describing location> describes the location that the data is taken at in all the detail desired by the experimenter (such as address, direction facing, etc). The measurement will be timestamped by the script.
     28
     29For example: <string describing location> can be coarse grained, point1, or fine grained, 10 Moulton street,North-West parking lot
     30
     31This script uses the wimaxcu scan utility to populate the /var/log/wimax/wimaxd.log file with data on all networks found. This file is then processed and relevant data is formatted and output to a text file, wimax_frequencies.txt, in the current directory. Subsequent iterations of the test will append data to wimax_frequencies.txt.
     32
     33wimax_frequencies.txt contains the RSSI value, CINR value, and a list of frequencies used by both the GENI network and the Sprint/Clear network, if they can be found.
     34
     35Sample wimax_frequencies.txt:
     36
     37{{{
     38Data on the frequencies, RSSI, and CINR for both the GENI and SPRINT/CLEAR networks
     39NOTE: The LinkQuality for each frequency is a score from 0-100, with 100 being
     40      the highest possible connection quality for that frequency
     41===================================================================================
     42
     43
     44Location: 10 Moulton Street
     45Fri Jan 13 12:13:06 EST 2012
     46
     47
     48------------------
     49SPRINT/CLEAR, ID=2
     50------------------
     51
     52Observed Frequencies and Link Quality:
     53Ch1 - 2528500Hz:   LinkQuality = 100
     54Ch2 - 2630500Hz:   LinkQuality = 72
     55Ch3 - 2640500Hz:   LinkQuality = 32
     56Ch4 - 2518500Hz:   LinkQuality = 24
     57Ch5 - 2663500Hz:   LinkQuality = 15
     58Ch6 - 2650500Hz:   LinkQuality = 10
     59Ch7 - 2551500Hz:   LinkQuality = 0
     60Ch8 - 2541500Hz:   LinkQuality = 0
     61Ch9 - 2650500Hz:   LinkQuality = 0
     62
     63Composite RSSI:
     64-36dBm
     65
     66Composite CINR:
     6736dB
     68
     69
     70-----------
     71GENI, ID=51
     72-----------
     73
     74Observed Frequencies and Link Quality:
     75Ch1 - 2590000Hz:   LinkQuality = 91
     76
     77Composite RSSI:
     78-36dBm
     79
     80Composite CINR:
     8136dB
     82
     83==========================
     84}}}
     85
     86