The Poly WiMAX deployment
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Sponsored by the National Science Foundation 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
description
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) - PowerPoint PPT Presentation
Transcript of The Poly WiMAX deployment
Sponsored by the National Science Foundation 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
Sponsored by the National Science Foundation 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.
Sponsored by the National Science Foundation 3
Base Station Installation
• Sector antenna and GPS antenna installation
Sponsored by the National Science Foundation 4
Base Station Installation
• ODU installation
Sponsored by the National Science Foundation 5
Server Installation
• Server installation
Sponsored by the National Science Foundation 6
Clients
Beceem USB clients (Windows) HTC EVO phones
Dell Inspiron Mini 1012 (Linux) Intel Centrino Advanced-N 6250
Sponsored by the National Science Foundation 7
Base Station Installation
• Poly’s location (Downtown Brooklyn)
Sponsored by the National Science Foundation 8
Measurements
• Coverage range (20dBm)
Sponsored by the National Science Foundation 9
Measurements
• Coverage range (3dBm)
Sponsored by the National Science Foundation
Dell Netbook 1012Linux 10.0.4Intel6250 CentrinoInternal antenna
Test Host
Public Internet
Base Station
NYU-Poly
NECWiMAXBS
GRE Tunnel
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22
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• 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
Sponsored by the National Science Foundation 11
Experiment 1
WiMAX broadcasting
WiMAX
WiMAX
WiMAX
WiMAX
Communication from the WiMAX interface
Devices may experience data losses due to heterogeneous wireless channel conditions
• Implementation of a WiMAX/WiFi cooperative recovery protocol– .
Sponsored by the National Science Foundation 1212
Experiment 1
Transmitter
Video Client 1
Video Client 2
Recovery Node
wimax
wimax
wimax
wifi
wifiWiMAXbroadcatsing
TCP
Distortion Producer
CoopCluster
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
Sponsored by the National Science Foundation 13
• Development of a campus based power meter infrastructure based on the WiMAX deployment
• Current solutions use Zigbee and USB connections, very low range
Experiment 2ZigBee
30-40 feet
USB
ZigBee30-40 feet
Internet
Sponsored by the National Science Foundation 14
• The data collected in the cloud can then be seen on a web browser or a smartphone.
Experiment 2
Sponsored by the National Science Foundation 15
• Use of the WiMAX deployment for transmitting the measuring data from the measuring points to the internet
Experiment 2ZigBee
30-40 feet
WiMAX
ZigBee30-40 feet
Internet
