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The Poly WiMAX deployment

The Poly WiMAX deployment. The BS (server, IDU) have been installed in the network room of the Library in the ECE Dept Building (5 Metrotech Center) The outdoor parts (sector antenna, GPS antenna, ODU) have been installed on the roof of the ECE Dept Building (5 floor building)

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The Poly WiMAX deployment

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  1. The Poly WiMAX deployment • The BS (server, IDU) have been installed in the network room of the Library in the ECE Dept Building (5 Metrotech Center) • The outdoor parts (sector antenna, GPS antenna, ODU) have been installed on the roof of the ECE Dept Building (5 floor building) • We have got 2 experimental licenses from FCC to operate the WiMAX BS for 2 years

  2. Current Status • The testbed is up and running since September 2010 in a regular basis • WiMax connectivity on the nodes is tested using different devices such as Wimax Dongle, HTC EVO phones and Wimax laptops • The signal levels are tested (RSSI and SINR) to map the coverage area around the campus • Extensive throughput and delay measurements underway • Video conferencing is tested using the HTC EVO 4G phones.

  3. Base Station Installation • Sector antenna and GPS antenna installation

  4. Base Station Installation • ODU installation

  5. Server Installation • Server installation

  6. Clients • Beceem USB clients (Windows) HTC EVO phones • Dell Inspiron Mini 1012 (Linux) Intel Centrino Advanced-N 6250

  7. Base Station Installation • Poly’s location (Downtown Brooklyn)

  8. Measurements • Coverage range (20dBm)

  9. Measurements • Coverage range (3dBm)

  10. Measurements Dell Netbook 1012 Linux 10.0.4 Intel6250 Centrino Internal antenna NEC WiMAX BS Public Internet Base Station Test Host NYU-Poly GRE Tunnel • Indoors and outdoors measurements on throughput and delay (iperf) • Many variations in urban area • Throughput from 0.5 to 12Mbps • Asymmetry on the uplink and downlink 1 2 3

  11. Experiment 1 • Implementation of a WiMAX/WiFi cooperative recovery protocol • . WiMAX WiMAX broadcasting WiMAX WiMAX WiMAX Communication from the WiMAX interface Devices may experience data losses due to heterogeneous wireless channel conditions

  12. Experiment 1 Distortion Producer Video Client 1 Recovery Node wifi wimax TCP Transmitter wimax wifi WiMAX broadcatsing Video Client 2 CoopCluster wimax Communication from the WiFi interface Devices run a Cooperative Recovery protocol to dynamically form a cooperative recovery (ad hoc)network and recover the lost multicast data packets from other peers

  13. Experiment 2 ZigBee 30-40 feet • Development of a campus based power meter infrastructure based on the WiMAX deployment • Current solutions use Zigbee and USB connections, very low range ZigBee 30-40 feet USB Internet

  14. Experiment 2 • The data collected in the cloud can then be seen on a web browser or a smartphone.

  15. Experiment 2 ZigBee 30-40 feet • Use of the WiMAX deployment for transmitting the measuring data from the measuring points to the internet ZigBee 30-40 feet WiMAX Internet

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