WINLAB

WiMAX in GENIEuroView 2012

Rutgers Universitywww.winlab.rutgers.edu

Contact: Ivan Seskar, Associate Directorseskar (at) winlab . rutgers . edu

WINLAB

Acknowledgments

Chip Elliot, Harry Mussman and Abhimanyu Gosain(GENI GPO/BBN)

Dipankar Raychaudhuri, Marco Gruteser, Gautam Bhanage and Kiran Nagaraja (Rutgers Unviersity)

Sampath Rangarajan and Rajesh Mahindra (NEC Lab USA)

Fraida Fund and Thanasis Korakis (NYU-Poly) Surat (Au) Teerapittayanon, Kerim Fouli, Muriel

Medard, Marie-Jose Montpetit, Xiaomeng Shi (MIT) Kuang-Ching Wang (Clemson University) Hongwei Zhang (Wayne State University)

WINLAB

GENI WiMAX Kit: Architecture

ASN Substrate

vBTS SubstrateCon

s-w

m-0

2et

h2Con

s-w

m-0

1et

h2

“Outside” Network

eth0

eth1

“Instrumentation”Network

“Internal”Network

Base Station (BTS) eth0

eth1

eth0

OutsideWorld

GENII&M

WINLAB

Spiral 1,2,3: “Profile A” BTS

4

rtPS real-time polling serviceertPS enhanced real-time polling service

nrtPS non real-time polling service

UGS unsolicited grant service

BE best effort

Supported Service Classes

ASN Substrate

vBTS Substrate

Base Station (BTS)

WINLAB

WiMax Kit: ASN Packet Forwarding

Removed all default IP routing, simplified ASN controller

L2 Based Data path (Click, OpenVSwitch, etc.) Shaping mechanism for slice isolation

ASN Substrate

vBTS Substrate

Base Station (BTS)

* Work done at NEC

WINLAB

WiMax Kit: vBTS

Redirect all traffic from VLANs/flows to individual slices

Similar redirection from slices to outbound VLAN/flow interfaces

AM for creation, destruction, maintenance of slices, adding clients, slice allocation control …

Virtual machine instances

Dynamicallycreated

VLANs/flows

ASN Substrate

vBTS Substrate

Base Station (BTS)

WINLAB

WiMAX BTS Hardware (Spiral 1,2,3)

• Operational with an experimental/educational license in 2.5 GHz band(s) (EBS Spectrum)

• Inherently IP based (“converted” into L2 based device)

Roof mounted antenna

Basestation (IDU) Unit

RF (ODU)Amplifier

WINLAB

MeasuredRSSI

WiMAX Coverage

WINLAB

WiMAX Virtualization

Throughput without shaping Throughput with shaping

GENI Traffic Scheduler/Shaper• Basic mechanism: shaping sum

rate at the vBTS• Available as a programmable

component for experimenters

WINLAB

Spiral 4: “Profile” C BTS 2 x 4 MIMO Std. control plane (R6) Installation/maintenance

Less controllability (A vs C) New vendor/platform Need ASN-GW substrate

WiMAX Only

RF bands (TDD)3.3-3.8 GHz2.5 GHz2.3 GHz700 MHz

WiMAX + LTE

RF bands (TDD)3.3-3.8 GHz

2.5 GHz2.3 GHz0.7 GHz

LTE / LTEA

RF bands (FDD, TDD)3.3-3.8 GHz2.5 GHz2.3 GHz1.x GHzSub 1GHz

Priorities: TBD

MechanicsGPSLAN switch

RF

MechanicsGPSLAN switch

Keep

KeepRF TDD

WiMAXBB

LTEBB

MechanicsGPSLAN switch

Keep

RF4x4 FDD, TDD

LTEBB

WiMAXBB Modify Modify

Modify

Stand Alone

(no ASN GW)

Fixed application √

Nomadic application √

AAA server

Required for

authentication and

encryption

Ethernet

convergence Sublayer √

VLAN pass-through √

PPPoE pass-through √

WINLAB

WiMAX Deployments

WayneState

Clemson

UMichiganWiMax

Columbia

UMassUWisconsin

Madison

UColoradoBoulder

UCLA

Stanford

Rutgers

WINLAB

Wayne State: Downtown DetroitRooftop 2nd floor server

room

+Confluence of urban highways

-Prox. To Canada

Courtesy: Hongwei Zhang

Experiments in sensing and vehicular (V2V, V2I, infotainment, etc.)

WINLAB

Clemson University: Deployment Map

GreenvilleArea

ClemsonCampus

Intra- and inter-subnet handoff with campus and highway vehicles.Roaming and interoperability with commercial WiMAX networks .

Courtesy: Kuang-Ching Wang

WINLAB

Experimental Package: ParkNet

Experimentation with delay-tolerant data collection protocols on Wimax networks utilizing:• Tools for executing and

orchestrating experiments across a set of mobile nodes

• Monitoring & instrumentation plane to obtain and manage large amounts of measurements (data)

Rangefinder + GPS

WINLAB

SensorApps

RC

OML

AM

Base StationControl AppOML

RC

ExperimentDescription

PubSubServer

AM

Control Network (CN)

CN

Experimental Network (EN)

EN

GENI Backbone

Rutgers Aggregate

OML

AppsRC

Brooklyn Poly Aggregate

RC OMLServer

Experimental Package: ParkNet (cont.)

WINLAB

Experimental Package: Cooperation

• Wireless devices are connected to the principal network (GENI WiMAX) to receive multicast or broadcast data such as live video feeds.

• A wireless device may lose some of the data sent over the principal network.

• Physically co-located devices form an assistant network over WiFi to recover the lost data cooperatively from their peers.

Packet recovery over heterogeneous networks

Courtesy: Fraida Fund and Thanasis Korakis

WINLAB17

Network Coding Architecture

Courtesy: S. Teerapittayanon, K. Fouli, M. Medard, M.-J. Montpetit, X. Shi

Experimental Package: Network Coding

WINLAB

Experimental Package: MobilityFirst

I2 Atlanta

I2 Houston

I2 Los Angeles

I2 Washington

I2 New York

I2 OF Switch

VLAN 3715NLR OF Switch

VLAN 3716

NLRChicago

NLRDenver

NLRSeattle

NLRSUNW

Clemson

Georgia Tech.

Rutgers

BBN

Stanford

Wisconsin

Edge OF Switch

Indiana

Washington

pg47@Clemson

Bridge

WiMAX BTS

WiFi AP

WiMAX BTS

WiFi APGUID=1 GUID=3 GUID=5

GUID=6

GUID=2 GUID=4 GUID=7

pc8@BBN 

pc4@BBN 

pg49@Stanford pg33@GTech pg51@Rutgers

PG1@Clemson pg50@Rutgers

WINLAB

Android and Linux Prototype

Network API

E2E Transport 

GUID Services 

Storage‐Aware Routing

‘Hop’ Link Transport

Interface Manager

WiFi WiMAX

App‐1 App‐2

Security

‘Socket’ API:open()send()get()recv()attach()close()

Network Layer 

User policies 

Linux PC/laptop with WiMAX & WiFi

Android device with WiMAX & WiFi

Device: HTC Evo 4G, Android v2.3 (rooted), NDK (C++)

Context API

App‐3

Context Services 

Sensors

Ethernet

Experimental Package: MobilityFirst (cont.)

WINLAB

Going Forward: Even Deeper Programmability

• Up to four full duplex RF modules• Tuning range : 100-7500 MHz • Range of COTS baseband FPGA platforms

(Vertex 6 LX50/SX95)• Standard interfaces: 1000 BaseT, (SFP) USB (8x

PCIExpress)• 25 MHz baseband• 12-bit ADC sampling rate of 64 MSps on I/Q • 12-bit DAC update rate of 200MSps

Quad Core i7

GigE Interface

PCIe Interface

16 GB RAM

256 GB SSD

GigE InterfaceWiMax/WiFi Interface

3G/4G/White Space Interface

WINLAB

More Information

www.geni.netwimax.orbit-lab.orggroups.geni.net/geni/wiki/WiMAXInteg

witestlab.poly.edumobilityfirst.winlab.rutgers.educrkit.orbit-lab.org