Version 17 (modified by SungHoon Seo, 12 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 mount and ODU on Fairchild roof top
  2. Request permission from Dean's office
  3. Preliminary base station testing with Wi-Fi antenna by using 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)

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

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)

Fairchild building rooftop (12 fl)

ThumbImage(IMG_0000.jpg, thumb=200)? ThumbImage(IMG_0001.jpg, thumb=350)? ThumbImage(IMG_0005.jpg, thumb=200)?

HAM radio station (14 fl)

ThumbImage(IMG_0010.JPG, thumb=200)? ThumbImage(IMG_0003.jpg, thumb=350)?
  1. Wall line hole (inside)
ThumbImage(IMG_0002.jpg, thumb=200)? ThumbImage(IMG_0008.JPG, thumb=200)?
  1. Ethernet connection to infrastructure
ThumbImage(IMG_0006.JPG, thumb=200)?
  1. Rack space for IDU, server, and power supplies
ThumbImage(IMG_0007.JPG, thumb=200)? ThumbImage(IMG_0009.JPG, thumb=200)?
  1. Wall line hole (outside)
ThumbImage(IMG_0011.JPG, thumb=350)? ThumbImage(IMG_0012.JPG, thumb=200)?

6. Indoor installment


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

7. 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

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