WiMAX Campus deployment
Deployment status & experiments
Thanasis Korakis
Polytechnic Institute of NYU
March 15, 2011
Sponsored by the National Science Foundation
Overview
WiMAX Meso-Scale Deployment Integration
• Part of Spiral 2
• Started Sept 2009
• 6 Universities (and a BBN site)
–
–
–
–
–
–
–
Columbia University
Polytechnic Institute of NYU
UCLA
University of Colorado at Boulder
UMass Amherst
University of Wisconsin
BBN Technologies
Sponsored by the National Science Foundation
Goals
Goals
• To develop the University campus WiMAX
testbeds
• To use an open source managerial software
based on OMF that will allow researchers to
remotely use the infrastructure and run
experiments
Sponsored by the National Science Foundation
Plan
• The WiMAX testbeds are based on NEC profile C
Base Stations
• Rutgers University:
– gets the Base Stations from NEC
– Setup a server with the required software
– Ship the “WiMAX campus deployment kits” to the rest
of the campuses
Sponsored by the National Science Foundation
Network Architecture
Sponsored by the National Science Foundation
Plan
• The network architecture as well as the NEC
hardware:
– Enables the researcher to monitor and control some
basic base station radio functions
– The ASN gateway removes many high-level WiMAX
functions and allows the researcher to implement their
own
– The ASN gateway includes slicing functions, to allow
the base station and ASN gateway to be shared by
multiple researchers at the same time.
Sponsored by the National Science Foundation
Plan
• The other campuses:
– Obtain FCC experimental licenses in the 2,5 – 2,6
band.
– Work on the engineering issues to develop the toolkit
(place for the BS setup, mounting of the antenna, etc)
– Install the hardware
– Setup the server
– Test the setup
– Do measurements
– Do experiments
Sponsored by the National Science Foundation
Current Status
• All the campuses have obtained experimental
licenses
• All the campuses have installed their WiMAX
development toolkits
• 4 of them are up and running in a regular basis
• 3 of them are running “in a lab environment” basis
• Experiments underway
• A parket demo in GEC 9 between Rutgers, Poly,
NICTA showing a multi-site experiment that uses
the WiMAX Campus testbed in Poly
Sponsored by the National Science Foundation
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
9
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
10
Base Station Installation
• Sector antenna and GPS antenna installation
Sponsored by the National Science Foundation
11
Base Station Installation
• ODU installation
Sponsored by the National Science Foundation
12
Server Installation
• Server installation
Sponsored by the National Science Foundation
13
Clients
Beceem USB clients (Windows)
Dell Inspiron Mini 1012 (Linux)
Sponsored by the National Science Foundation
HTC EVO phones
Intel Centrino Advanced-N 6250
14
Base Station Installation
• Poly’s location (Downtown Brooklyn)
Sponsored by the National Science Foundation
15
Measurements
• Coverage range (20dBm)
Sponsored by the National Science Foundation
16
Measurements
• Coverage range (3dBm)
Sponsored by the National Science Foundation
17
Measurements
Dell Netbook 1012
Linux 10.0.4
Intel6250 Centrino
Internal antenna
NEC
WiMAX
BS
Public Internet
Base
Station
NYU-Poly
Test Host
GRE Tunnel
1
2
3
Sponsored by the National Science Foundation
• 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
Experiment 1
• Implementation of a WiMAX/WiFi cooperative
recovery protocol
–.
WiMA
X
WiMAX
broadcasting
WiMA
X
WiMA
X
WiMA
X
Communication from the WiMAX interface
Devices may experience data losses due to heterogeneous wireless
channel conditions
Sponsored by the National Science Foundation
19
Experiment 1
Distortion
Producer
Video Client 1
wifi
wimax
TCP
Transmitter
Recovery Node
wimax
wifi
WiMAX
broadcatsing
Video Client 2
wimax
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
20
Sponsored by the National Science Foundation
20
ZigBee
30-40 feet
ZigBee
30-40 feet
Experiment 2
• Development of a campus based
power meter infrastructure
based on the WiMAX
deployment
• Current solutions use Zigbee
and USB connections, very low
range
USB
Sponsored by the National Science Foundation
Internet
21
Experiment 2
• The data collected in the cloud can then be seen
on a web browser or a smartphone.
Sponsored by the National Science Foundation
22
ZigBee
30-40 feet
Experiment 2
• Use of the WiMAX deployment
for transmitting the measuring
data from the measuring points
to the internet
ZigBee
30-40 feet
WiMAX
Internet
Sponsored by the National Science Foundation
23
UMASS deployment
Base Staton
• To be installed on top of 17 story building on campus
• Internet and Internet2 VLAN access
• Omni- and 120-degree sector antennas, manually switchable
• Base Station currently set up in lab, operational
• Have client-BS-router-datapath working
• Working with Rutgers on client configuration
Experiments
• Intent is to measure connectivity as the buses travel on their routes
NSF MobilityFirst Future Internet Architecture
• Open platorm allowing user-°©‐submited experiments
• Buses and other clients
Sponsored by the National Science Foundation
24
Univ. of Colorado deployment
• Base-station:
• NEC PASEO professionally install by campus
• Powered recently
• Server moved to “small PC” to simplify
installation in chosen site.
• GENI WiMAX is one of
3 operational WiMAX
networks in Boulder:
GENI, Clear and U.
Campus
Colorado private
Airspan
WiMAX (using airspan)
WiMAX
• Station running on
A4/B4 block, 10MHz
GENI
band.
WiMAX
• Propagation Models &
measurement
• Starting data modeling
using Anritsu MS2721B
with WiMAX demodulator
• Acquiring propagation
based model from Airspan
deployment
Sponsored by the National Science Foundation
25
UCLA deployment
• Status
– Wimax Station on AIR. Clients
can connect to the station but we
still have some stability problems
on our network
– Clients Work well
– Debugging some minor
instabilities in the various
configurations with the help of
Rutgers.
– New gateway software works and
is stable.
• In Progress
– Coverage Tests (Started but to early to say anything)
– Throughput Test (initial test done Poster at GEC. )
– Load Tests (high # of clients) April 11
– Seamless Integration with WiFi (Done 11)
Sponsored by the National Science Foundation
26
Columbia Deployment
•
Indoor testing at the lab : completed
•
Base Station with attenuated antenna (freq. 2590 MHz)
•
•
•
Clients
•
•
•
Installed the newest OMF aggregation manager
Ready to use wimaxrf
Equipped Intel 6250 NIC in Linux operating system
Able to scan as well as connect to BS with GENI NSP (51) by
using modified operators’ information at XML binary
On-site installation : not yet
•
•
Now all BS and clients work properly in indoor environment
But should wait for the permission from campus facilities to
mount antenna and ODU at the on-site
Sponsored by the National Science Foundation
17th March 2011
27
Columbia Deployment
•
Indoor testing at the lab : completed
•
Base Station with attenuated antenna (freq. 2590 MHz)
•
•
•
Clients
•
•
•
Installed the newest OMF aggregation manager
Ready to use wimaxrf
Equipped Intel 6250 NIC in Linux operating system
Able to scan as well as connect to BS with GENI NSP (51) by
using modified operators’ information at XML binary
On-site installation : not yet
•
•
Now all BS and clients work properly in indoor environment
But should wait for the permission from campus facilities to
mount antenna and ODU at the on-site
Sponsored by the National Science Foundation
17th March 2011
28
BBN Deployment
•
The testbed is up an running
•
Detailed measurements are conducted measuring
throughput, RSSI, delay
•
A lot of support to other campuses deployment
practices
Sponsored by the National Science Foundation
17th March 2011
29
Thank you!
Questions??
Sponsored by the National Science Foundation
30