wiki:GEC13Agenda/WiMAXPlanning

  1. WiMAX Campus Deployments and Experiments Meeting at GEC-13
    1. Schedule
    2. Description
    3. Agenda
    4. 1) Introductions
    5. 2) GENI WiMAX Site Deployment Status and Plans
      1. 2.1) BBN Site Extension Plan
      2. 2.2) WINLAB/Rutgers University Site Extension Plan
      3. 2.3) UCLA Site Extension Plans
      4. 2.4) Clemson University Site Deployment Plan
      5. 2.5) University of Wisconsin Site Extension Plan
      6. 2.6) University of Michigan Site Deployment Plan
      7. 2.7) Wayne State University Site Deployment Plan
      8. 2.8) Temple University Site Deployment Plan
      9. 2.9) Drexel University Site Deployment Plan
      10. 2.10) UMass Amherst Site Update
      11. 2.11) NYU Poly Site Update
      12. 2.12) Univ of Colorado at Boulder Site Update
      13. 2.13) Columbia University Site Update
      14. 2.14) Add OMF/OML
      15. 2.15) Connect to I2 Backbone Network
    6. 3) Break
    7. 4) GENI WiMAX Strategic Issues
      1. 4.1) Co-exist with Clearwire
      2. 4.2) Add mobility/handover functions
      3. 4.3) Add WiFi AP to sites for dual-homed experiments
      4. 4.4) Progress towards cognitive radio platform
      5. 4.6) Options for introducing LTE Equipment
      6. 4.7) GIMI I&M tool set to cover WiMAX sites
    8. 5) GENI WiMAX Experimenter Support
    9. 6) Adjourn
    10. References
      1. R1 GENI WiMAX Strategy
      2. R2) WiMAX Licenses
      3. R3) Airspan Profile-C Base Station, with Associated Hardware and Software
      4. R4) WiMAX Site Configuration with Airspan Base Station(s)
      5. R5) OMF/OML Configuration at WIMAX Site
      6. R6) Connecting WiMAX Site to Backbone Network
      7. R7) Experiment Support
      8. R8) Spectrum Survey Experiment
      9. R9) Throughput Experiment Using iperf
      10. R10) Throughput Experiment Using Bit Torrent
      11. R11) Raw IP and UDP Traffic Generators
      12. R12) Using OMF and OML in Your Experiment
      13. R13) Multiple Site Experiment: Mobility First

WiMAX Campus Deployments and Experiments Meeting at GEC-13

Schedule

Thursday, 8:30 am - 10am and 10:30am - 11:30 am
Room: TBD
Session leader: Harry Mussman (GENI Project Office, Raytheon BBN Technologies)

Description

This session will first review the status of WiMAX site deployments and extensions.

Then, it will consider several GENI WiMAX strategic issues, including GENI WiMAX experimenter support.

Agenda

This is a tentative agenda, which may change.

NOTE: We have many topics to cover in a short time. PLEASE bring only the designated number of slides, and provide a link to additional information. THANKS!

1) Introductions

8:30am

2) GENI WiMAX Site Deployment Status and Plans

Paper including sections on basic and extended WiMAX sites, and on WiMAX research and service experiments: pdf

Current GENI WiMAX sites, licenses and base stations spreadsheet

2.1) BBN Site Extension Plan

8:35am
Manu Gosain (GPO)

At BBN: Replace NEC BS on roof with Airspan BS

Experimental license, 10MHz channel, 2590MHz
x1 (2510 Mid: 2560MHz to 2630MHz)

Reuse NEC BS on separate frequency

Experimental licenses, 5MHz channel, 2512.5MHz

Status [ 3 slides]

Bringup Airspan

Installed; working through configuration issues

Add OMF/OML

In process: Install on HP server, splitting functions onto different VMs

Connect to I2 backbone network

Close to proving in new WiMAX RF AggMgr which maps groups of MSs into a VLAN tag; then use Cisco switch to route to Internet, I2 bacbone connections to other sites

WiMAX Site Configuration


2.2) WINLAB/Rutgers University Site Extension Plan

8:40am
Ivan Seskar (WINLAB)

Retain at WINLAB: NEC BS in sandbox

At WINLAB: Replace NEC BS on roof with Airspan BS (currently at WINLAB)

Experimental license: 2610MHz (10MHz)
x1 (2510 Mid: 2560MHz to 2630MHz)

At Bush Campus: Install Airspan BS

Experimental license: 2690MHz (10MHz)
x1 (2510 Mid: 2560MHz to 2630MHz)

Status [3 slides]

Bringup Airspan
Remote access to BSs
Connect to I2 backbone network

2.3) UCLA Site Extension Plans

8:45am
Mario Gerla, Giovanni Pau (UCLA)

Add x1 Airspan BS near UCLA dormitories; possibly other BSs.

x1 (2510 Mid: 2560MHz to 2630MHz)

Extension plan [ 4 slides]

License status
Location and backhaul
Mobility and handover
Planned experiments

Status [ 2 slides]

Add OMF/OML
Connect to I2 backbone network

Status:

Frequencies

Proceeding with renewal of the 2 granted licenses

Connection to Backbone

Have Open Flow Switch
Fiber expected this month
Connection beginning of April

AIRSPAN BS

Expected shortly
Location selected
Facilities contacted to prepare site.

Clients:

Ordered 35 Clients from Derek, waiting for them

2.4) Clemson University Site Deployment Plan

8:55am
K-C Wang, Reece Johnson (Clemson) Clemson slides

Add x1 Airspan BS near campus
Add x2 Airspan BS near Greenville; connect via DOT fibers.
Want handover near I85/I385 intersection.

x3 (2510 Lo: 2496 to 2570 MHz)

Extension plan slides

License status
Location and backhaul
Mobility and handover
Planned experiments

2.5) University of Wisconsin Site Extension Plan

9:05am
Suman Banerjee, Derek Meyer (Wisconsin)

Considering expansion to two possible locations: Madison Metro; and Dept of ? near Capitol.
Connect via Madison unified fiber project
Outside contributions for power and poles.

x1 (2510 Mid: 2560MHz to 2630MHz)

Extension plan [ 4 slides]

License status
Location and backhaul
Mobility and handover
Planned experiments

Status [ 2 slides]

Add OMF/OML
Connect to I2 backbone network

2.6) University of Michigan Site Deployment Plan

9:15am
Morley Mao (Michigan)

Identified several roof-top locations; aesthetics approval required.
Will signals penetrate into buildings?
One frequency from Clearwire

x1 (2510 Lo: 2496 to 2570 MHz)

Extension plan slides

License status
Location and backhaul
Mobility and handover
Planned experiments

2.7) Wayne State University Site Deployment Plan

9:20am
Hongwei Zhang, Yu Chu (Wayne State)

Considering: one site with three sectors.
One frequency (10MHz) from Clearwire

x3 (2510 Mid: 2560MHz to 2630MHz)

Extension plan [ 4 slides]

License status
Location and backhaul
Mobility and handover
Planned experiments

Clearwire in Detroit, and at Wayne State location

2.8) Temple University Site Deployment Plan

9:30am
Shan Lin, Jie Wu (Temple)

Two frequencies from Clearwire, shared with Drexel

x2? (2510 Mid: 2560MHz to 2630MHz)

Extension plan slides

License status
Location and backhaul
Mobility and handover
Planned experiments

2.9) Drexel University Site Deployment Plan

9:35am
Kevin Wanuga, Jeff Wildman, Kapil Dandekar (Drexel)

Two frequencies from Clearwire, shared with Temple

x2? (2510 Mid: 2560MHz to 2630MHz)

Extension plan slides

License status
Location and backhaul
Mobility and handover
Planned experiments

2.10) UMass Amherst Site Update

9:40am
Mike Zink, Cong Wang (UMass Amherst)

Status [ 3 slides]

Add OMF/OML
Connect to I2 backbone network
Planned experiments

2.11) NYU Poly Site Update

9:45am
Thanasis Korakis, Fraida Fund (NYU-Poly)

Status [ 3 slides] slides

Add OMF/OML
Connect to I2 backbone network
Planned experiments

2.12) Univ of Colorado at Boulder Site Update

9:50am
Dirk Grunwald (Colorado)

Status [ 3 slides]

Add OMF/OML
Connect to I2 backbone network
Planned experiments

2.13) Columbia University Site Update

9:55am
Henning Schulzrinne, Jan Janak (Columbia)

Status [ 3 slides]

Add OMF/OML
Connect to I2 backbone network
Planned experiments

2.14) Add OMF/OML

10:00am
Manu Gosain (GPO), Fraida Fund (NYU Poly), Giovanni Pau (UCLA)

Equip a WiMAX site with full OMF/OML capabilities

[ slides]


2.15) Connect to I2 Backbone Network

10:10am
Manu Gosain (GPO), Fraida Fund (NYU Poly), Ivan Seskar (WINLAB)

Connect a WiMAX site to the GENI I2 backbone network

Update WiMAX RF Agg Mgr to map MS groups into VLAN tags
Add Cisco switch
Connect switch to I2 backbone
Mesh of VLAN connections in I2 backbone

[ slides]


3) Break

10:20am

4) GENI WiMAX Strategic Issues

10:30am

4.1) Co-exist with Clearwire

10:30am
Moderator: Harry Mussman (GPO)

Summary of license arrangements, some limited to 1 year, up to $4k to renew
What can we offer Clearwire?

Useful research?
Less interference, by synchronizing transmit/receive?

Clearwire in Detroit, and at Wayne State location

4.2) Add mobility/handover functions

10:40am
Moderator: Parmesh Ramanathan (Wisconsin)

Projects requiring handover include: Clemson, Wayne State and Wisconsin.
Projects that can contribute handover technology include: Rutgers WINLAB and Wisconsin.
Also, commercial handover technology available from Airspan. (Gregg Tome (Airspan))
Process to find a good solution?

slides

WiMAX site with multiple base stations and mobility management


4.3) Add WiFi AP to sites for dual-homed experiments

10:50am
Moderator: Harry Mussman (GPO)

[ slides]

4.4) Progress towards cognitive radio platform

10:55am Peter Wolnianski

[ slides]

4.6) Options for introducing LTE Equipment

11:00am
Moderator: Harry Mussman (GPO)

Ray Raychaudhuri (WINLAB)

Ivan Seskar (WINLAB)

Patrick Gossman (Wayne State) The Case for LTE

Gregg Tome (Airspan)

[ slides]

4.7) GIMI I&M tool set to cover WiMAX sites

11:10am
Mike Zink (UMass Amherst)

[ slides]


5) GENI WiMAX Experimenter Support

11:15am
Moderator: Harry Mussman (GPO)

Paper including sections on basic and extended WiMAX sites, and on WiMAX research and service experiments: pdf
See below for summary of WiMAX experiment configurations, Cases 1 - 4.
Feedback from WiMAX tutorial attendees: who is interested in what experiments? (Thanasis Korakis, Fraida Fund (NYU Poly))
Round-robin discussion, with a focus on experiment design and issues.

Case 1: Basic Internet access

Case 2a: Local or network-based WiMAX service experiment


Case 2b: Integrated networking and service experiment, e.g., MobilityFirst


Case 3: Sensor experiment, e.g., ParkNet


Case 4a: Mobility experiment, e.g., throughput and range


Case 4b: Fixed experiment, allowing remote experimentation


6) Adjourn

11:30am

References

R1 GENI WiMAX Strategy

Harry Mussman (GPO)

a) Goals for GENI WiMAX site deployments:

Satisfy needs of local research experiments
Support multi-site experiments, e.g., MobilityFirst
Support remote experimenters

Support multi-site applications?

Are we missing something? support for instruction?

b) Sol 2 base station deployments:

Update to include OMF/OML structures, including LoginService
Add GENI AM API

Complete, and update to new software that support multiple VLANs, etc.
Connect via switch to I2 backbone, via OF switches if there

Consider how to setup multi-site slice, and include other GENI resources
Consider federated operation
Consider adding WiFi AP to support dual-homed experiments, e.g., MobilityFirst

c) Sol 3 base station deployments:

Consider 3.6GHz operation?
Study commercial campus deployments, to understand coverage and applications: U Colorado, Boulder; Northern Mich U; UMass Dartmouth
Order Airspan base stations and related items, for delivery 1/2012
Complete installation within Spiral 4! (within 1 year)

Decide on how to provide ASN-GW for handover
Consider open-source ASN-GW? or ASN-GW from Airspan?
How could we use Wisconsin mobility engine?

Airspan Deployment Plan for Univ Colorado at Boulder

d) Mobile stations:

Reference MS is Linux netbook, with Intel WIMAX modem card, internal or external
Reference vehicular MS?
Reference handset MS? Need to be able to unlock Sprint-supported device?

e) Experiment support:

Move to OMF/OML, for better support and for easier sharing
Consider alternate techniques for throughput measurements
Consider how to setup multi-site slice, and include other GENI resources

GIMI project committed to supporting WiMAX sites

How can we make it easy for experimenters?

f) Other topics:

Interworking with carriers (Clemson)
Use of carrier resources, i.e., WiNTeB
How could we add LTE? any match of equipment, frequencies and mobile stations?

g) CONCERN:

Do not have resources to do all of the above! how do we decide?
What is the best way to support campus projects?
What is the best way to support experimenters?

R2) WiMAX Licenses

R3) Airspan Profile-C Base Station, with Associated Hardware and Software

Ivan Seskar (WINLAB) and Harry Mussman (GPO)

a) Choice of Airspan to provide a WiMAX base station for new GENI WiMAX sites
NEC is not able to provide a WiMAX base station for new GENI WiMAX sites
WINLAB and the GPO have decided to purchase base stations from Airspan, a commercial company pursuing target customers such as universities and small carriers.
For example, the Univ of Colorado at Boulder IT Dept has installed an Airspan system with 4 sectors, that covers the campus. They have been pleased with Airspan.
WINLAB has a frim quote from Airspan for their MacroMAXe profile-C WiMAX base station unit, and related items.

Airspan brochure
MacroMAXe Product Specification
Airspan Deployment Plan for Univ Colorado at Boulder

b) Rutgers will provide a kit including:
Airspan MacroMAXe profile-C WiMAX base station unit, for outside mounting

Choice of frequency:
(2510 Lo: 2496MHz to 2570MHz)
(2510 Mid: 2560MHz to 2630MHz)
(2510 Hi: 2620MHz to 2690MHz)
(3650: 3650MHz to 3700MHz)]

NOTE: WINLAB needs to know frequency choices during November (or early December), so that they can place an order with Airspan for delivery late 2011 or early 2012!

Sector antenna, with x4 RF jumper cables
2x4 MIMO, supported by base station and antenna
GPS antenna, with surge suppressor and cable
DC power cable, from base station unit (outside) to testbed (inside)
Network management software license, 1 per base station

Figure 3-1 Airspan MacroMAXe Base Station with Antenna


c) Campus will need to provide:
Pole for mounting
DC power supply (-48v, approx 300W)
Ethernet cable, from base station unit (outside) to testbed (inside); consider copper (may be a problem with lightning surge) or fiber (requires MM fiber cable, and fiber interface on switch)
Windows server to host network management software
Linux server to host OMF software
Ethernet switches, and other network equipment, for access (configuration to be provided)

d) Additional kits can be purchased from Airspan

Price is approximately $15,000.

e) It is expected that additional base stations kits will be purchased for some (or all) Sol 3 GENI sites in Spiral 5.

Thus, campus site might be able to add additional sectors, at no cost.
Planning for next year will be done later this year.
Consider including additional sectors within your technical plan right away.

f) Note: Airspan indicates that they expect to introduce a new base station unit within the next year.

Somewhat reduced performance/range.
Approximately half the cost

g) Airspan indicates that their sector antenna provides:

A 90degree pattern, which is consistent with proper coverage over a 120degree sector.
Four internal elements, to support 2x4 MIMO.
Airspan can provide provide x4 omni-directional antennas, but the cost is much higher, and the range is signifcantly reduced.

h) Airspan shows that their profile-C base station unit can be configured to operate without an ASN GW and without a RADIUS (authentication) server.

In this mode, a list of allowed base stations must be configured into the base station, and groups of these base stations are mapped to a VLAN on the ethernet port.
This appears to be consistent with the current NEC base station unit operated with the ASN GW/WiMAX RF AggMgr code that has been provided by Rutgers/WINLAB
MacroMAXe Configuration Guide

i) Airspan shows that if handover operation is desired, an ASN GW must be provided, plus typically an associated RADIUS (authentication) server.

In this case, the base station unit operates with IP at the interface.

R4) WiMAX Site Configuration with Airspan Base Station(s)

R5) OMF/OML Configuration at WIMAX Site

R6) Connecting WiMAX Site to Backbone Network

R7) Experiment Support

Paper including sections on basic and extended WiMAX sites, and on WiMAX research and service experiments: pdf

R8) Spectrum Survey Experiment

R9) Throughput Experiment Using iperf

2:15pm
Manu Gosain (GPO) and Harry Mussman (GPO)

Overview of basic throughput experiment, using bidirectional iperf, both TCP and UDP

Basic throughput experiment using OMF/OML

The basic throughput experiments we have done utilize iperf, both TCP and UDP.

In iperf, the data is generated in the client, and flows to the server.
We put the client in the Mobile Station, and the server in the Base Station.
We used -d dualtest (bidirectional mode), where test is initiated at the client, data begins to flow to the server, and then a second data flow starts at the server; at the end of the test, results are available at the client.
Because of this, all tests can be initiated at the Mobile Station, and then results are available there.

iperf results in the TCP mode depend upon buffer sizes; overall delay; and lost packets.

Because of wireless propagation conditions, lost packets are common, and slight changes can significantly affect the measured throughput.
Thus, TCP results are highly variable; we took multiple measurements at each point, and identified the best and worst results.
It would certainly be good to have a better way to evaluate available channel bandwidth.
On the other hand, most apps use TCP and the variable results are typical of how these apps would see the channel.

iperf results in the UDP mode, counts % packets received, for a given (fixed) transmit rate.

If the rate is set below the available bandwidth, typically 100% of the packets are received.
If the rate is set above the available bandwidth, typically % of the packets are received typically equals available bandwidth divided by offered bandwidth, but there is no way to understand how many packets are actually lost.
An extended test that ramped up the offered bandwidth in multiple tests, could actually verify the available bandwidth; this could then be repeated to see real variations in available bandwidth.

References:

iperf tutorial slides
iperf tutorial web site

R10) Throughput Experiment Using Bit Torrent

2:20pm
Fraida Fund (NYU Poly)

slides

Overview of throughput experiment, using bit torrent.
Advantages

Reference
More information & source code
Use the NYU-Poly WiMAX testbed

R11) Raw IP and UDP Traffic Generators

2:25pm
Surat (Au) Teerapittayanon (MIT)

Overview of new raw IP and UDP traffic generators, to accurately gauge available channel bandwidth.
slides

R12) Using OMF and OML in Your Experiment

2:30pm
Christoph Dwertmann (NICTA)

slides

Basic throughput experiment using OMF/OML

OML'ified apps we know of include:

gpslogger
Iperf
omf_nmetrics
omf_trace
otg and otr
wlanconfig_oml
Yantt (Yet another network testing tool)
SNMP wrapper

Repository for OML'ified apps

List of available modules with OMF and OML for use in your experiment
Approach for adding OMF and OML interfaces to additional modules

R13) Multiple Site Experiment: Mobility First

2:35pm
Kiran Nagaraja (WINLAB)

slides

Overview of current Mobility First multiple-site experiment.

What additions are needed?
1) Add WiFi AP to each site.
2) L2 path from MS to core

Experiment done without human intervention, by using x2 MAC addresses, and emulating packet loss to fake mobility.
Consider these as possible sites by GEC13: WINLAB; BBN; NYU Poly; UCLA; Colorado.

Last modified 7 years ago Last modified on 06/27/12 14:21:54

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