CRAWDAD cu/wimax

WiMax measurements made with a portable spectrum analyzer on the University of Colorado campus.This data was collected at the University of Colorado Boulder. It contains careful point measurements of the WiMax network serving the University of Colorado campus. Measurements were made with a portable spectrum analyzer and contain high fidelity measurements of CINR, RSS, EVM, RCE, Spectrum Flatness, and Frequency Shift. Several hundred measurements were taken on a 100m equalateral triangular lattice as a "first phase" sample. Additional "second phase" measurements were taken at random and optimized points.date/time of measurement start: 2011-05-01date/time of measurement end: 2011-05-01collection environment: This data was collected at the campus of University of Colorado, Boulder, USA. network configuration: All measurements were done "passively", without any greater access to the WiMax network than a typical client device would have. Five distinct Base stations (BSs) were measured operating in an educational license at 2.5 GHz:
Name,Orientation,Frequency,BSID,Lng,Lat,Easting,Northing,AGL(m),Channel
"Gamow_West",235,2530,"000000:000101",-105.267778,40.008056,2017383.55491878,4582293.92520922,46,116
"Gamow_East",90,2520,"000000:000102",-105.267778,40.008056,2017383.55491878,4582293.92520922,46,76
"Eng_East",120,2530,"000000:000002",-105.263056,40.007222,2017808.74220088,4582284.16821699,34,116
"Eng_West",240,2510,"000000:000001",-105.263333,40.007222,2017784.9247938,4582279.26962773,34,36
"Eng_North_GENI",0,2578,"4451DB:000701",-105.263333,40.007222,2017784.9247938,4582279.26962773,34,308

Lat/Lng are given in EPSG:4326 and Easting/Northing in EPSG:32160. The BSs on channels 36, 76, and 116 are identical, installed by Airspan and maintained by the University of Colorado IT Services. They each have a 90 degree sector pointed in the azimuthal orientation indicated. The fifth BS is an experimental GENI WiMax ("http://groups.geni.net/geni/wiki/WIMXUCO") node, using NEC hardware and maintained by researchers in the University of Colorado Computer Science Systems Laboratory.data collection methodology:Data collection was performed an Anritsu MS2721B portable spectrum analyzer, which was controlled over a National Instruments VISA interface using a Linux netbook computer and an Ethernet interface. The included source "measure.c" is the NI/VISA code that was used to collect each measurement point. The measurement devices were attached to a bicycle/hand cart. At each point, a GPS reading was taken from a hand-held Garmin GPS60 (the GPS on the Anritsu was not usable).

The data contains measurements from 4 distinct campaigns:

A: A 100m triangular lattice grid sample of the main CU campus, focusing on
channel 76 only
B: A 100m triangular lattice grid sample of the main CU campus, on the
remaining channels
C: Uniform random second-phase sample, focusing on channel 308 only
D: Optimized second-phase samples, focusing on channel 308 only