1. Sponsored by the National Science Foundation1 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. Sponsored by the National Science Foundation2 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. Sponsored by the National Science Foundation3 Base Station Installation Sector antenna and GPS antenna installation

4. Sponsored by the National Science Foundation4 Base Station Installation ODU installation

5. Sponsored by the National Science Foundation5 Server Installation Server installation

6. Sponsored by the National Science Foundation6 Clients Beceem USB clients (Windows) HTC EVO phones Dell Inspiron Mini 1012 (Linux) Intel Centrino Advanced-N 6250

7. Sponsored by the National Science Foundation7 Base Station Installation Poly’s location (Downtown Brooklyn)

8. Sponsored by the National Science Foundation8 Measurements Coverage range (20dBm)

9. Sponsored by the National Science Foundation9 Measurements Coverage range (3dBm)

10. Sponsored by the National Science Foundation Dell Netbook 1012 Linux 10.0.4 Intel6250 Centrino Internal antenna Test Host Public Internet Base Station NYU-Poly NEC WiMAX BS GRE Tunnel 1 1 2 2 3 3 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 Measurements

11. Sponsored by the National Science Foundation11 Experiment 1 WiMAX broadcasting WiMA X Communication from the WiMAX interface Devices may experience data losses due to heterogeneous wireless channel conditions Implementation of a WiMAX/WiFi cooperative recovery protocol –.

12. Sponsored by the National Science Foundation12 Experiment 1 Transmitter Video Client 1 Video Client 2 Recovery Node wimax wifi WiMAX broadcatsing TCP Distortion Producer Coop Cluster 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. Sponsored by the National Science Foundation13 Development of a campus based power meter infrastructure based on the WiMAX deployment Current solutions use Zigbee and USB connections, very low range Experiment 2 ZigBee 30-40 feet USB ZigBee 30-40 feet Internet

14. Sponsored by the National Science Foundation14 The data collected in the cloud can then be seen on a web browser or a smartphone. Experiment 2

15. Sponsored by the National Science Foundation15 Use of the WiMAX deployment for transmitting the measuring data from the measuring points to the internet Experiment 2 ZigBee 30-40 feet WiMAX ZigBee 30-40 feet Internet