Version 22 (modified by SungHoon Seo, 13 years ago) (diff)


Columbia University WiMAX Campus Deployment and Installation

1. People

  • Henning Shculzrinne (PI)
  • SungHoon Seo (postdoctoral researcher)
  • Jan Janak (visiting scholar)

2. TODOs

  1. Contact Facilities to mount pole mask and ODU on outdoor site
  2. Request permission from Dean's office, facilities, and real-estate committee
  3. Preliminary base station testing with Wi-Fi antenna by using signal power attenuator (it should be set with reduced (lowest) TX power 0 dBm)
  4. Purchase additional necessary items
  5. Ethernet activation (1402B) when all equipments are ready via Patrick (CUIT staff)
  6. Check rack space (smaller size) for IDU and ASN-GW

3. History

  1. Obtained FCC licence on Apr 14, 2010
  2. Site survey on Jun 24 and Sep 30, 2010
    • We chose Fairchild building rooftop (12 fl) for mounting WiMAX antenna + ODU and HAM radio station (14 fl) to install IDU+server(s).
  3. The first WiMAX package arrived on Jun 16, 2010
    • shipment from Rutgers University
      1. Outdoor unit x 1 EA
      2. GPS receiver antenna x 1 EA
      3. Fiber cable x 1 ROLL (?? feet)
      4. Sector antenna x 1 EA
      5. Mounting brackets for ODU and the antenna x 1 SET
      6. Power connector for the ODU x 1 EA
      7. Ligthning surge protector for the WiMAX antenna x 1 EA
  4. Buying required items (via Elias Tesfaye, officer in CS department)
  5. Visiting WINLAB, Rutgers University on Oct 8, 2010
    • Obtained the rest of the equipments:
      1. WiMAX indoor unit (IDU) x 1 EA
      2. ASN-GW Server x 1 EA
      3. IDU/ODU power supplies x 2 EA
      4. AWB US210 USB clients x 10 EA
      5. Intel Link 6250 mini PCI module x 2 EA
  6. Project request to the Facilities on Oct 9, 2010
  7. Space Unit measurement on Oct 13, 2010 @ Fairchild building
  8. Complete setting of client testbed platform on Oct 29, 2010
  9. Meeting with Facilities on Nov 29, 2010
    • At CS office: an additional committe (real-estate) admission required.
  10. Site survery for a new outdoor site (indoor site as well) on 09, 2010
    • At Fairchild and Mudd building: Site change is necessary.
  11. Meeting with electrician for the antenna mount on Dec 16, 2010
    • At Mudd 14fl and IRT

4. Campus WiMAX radio coverage map (expected)

a. 2D map view (by Google map) b. Aerial view (by Bing map)
ThumbImage(coverage_map.png)? ThumbImage(coverage_aerial.jpg, thumb=450)?

5. Conceptual diagram for deployment

Diagram for Columbia Univ. Campus WiMAX deployment Diagram (ODU+antenna)

6. Site survey

Becuase of the various reaons, on Dec. 16 2010, we decide to change the outdoor and indoor sites to the southwest corner of Mudd building, 14 fl, rooftop.

New outdoor site at Mudd 14th floor

a. Wide view b. front view c. SW corner d. side view e. detail
ThumbImage(site1.JPG, thumb=200)? ThumbImage(wall3.jpg, thumb=200)? ThumbImage(wall4.jpg, thumb=200)? ThumbImage(wall1.jpg, thumb=200)? ThumbImage(wall2.jpg, thumb=200)?

line-of-sight view 1 LOS view 2
ThumbImage(los1.jpg, thumb=350)? ThumbImage(los2.jpg, thumb=350)?

New Indoor site at Mudd 14th floor (neer outdoor site, same level)

ThumbImage(rack_space.jpg, thumb=200)?
  • Need to check the space availabilitye: 5U + pwr suplies.

See Old outdoor/indoor sites.

7. Indoor installment


  • It is strongly required connecting with `serial cable' between IDU and ASN-GW server because of monitoring purpose.

8. Client Setting

NIC installation

See network interface card installation for more detail.

Software installation

  • Required software (from
    1. NIC firmware: i2400m-fw-1.5.0
    2. Driver:compiled and built by patched linux kernel
    3. WiMAX tool: wimax-tools-1.4.4
    4. Open source supplicant: wpa_supplicant-0.7.2 with patch to build library
    5. WiMAX network service: wimax-1.5.1, Intel's WiMAX daemon
  • History
    1. Initial compilation and installation (10/28/10)
      • It seems like working properly.
    2. NSP definition does not detect the geni NSP id 51 (01/07/11)
      • This issue has been discussed on mailing list
    3. Patch for GENI NSP ID '51' (02/02/11)
      • Update WPA supplicant (wpa_supplicant-0.7.3 + wpa_supplicant-0.7.3-generate-libeap-peer.patch
      • Replace XML file on wimax-1.5.1 (append geni NSP into ~/InfraStack/OSAgnostic/WiMax/Agents/NDnS/XML_Files/NDnSAgentConfig_forDriver.xml)
        • Note: Don't miss running ldconfig after the compilation completes.
      • Replace GENI definition and database files (WiMAX_Def.bin and WiMAX_DEF.bin obtained from orbit-lab) on ~/InfraStack/OSAgnostic/Product/AppSrvInfra)
        • Installation completed and checked working properly
        • Note: The file of /var/lib/wimax/WiMAX_DB.bin is changed whenever performing 'wimaxcu scan'

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