Lec1 Sdr Intro

7/31/2019 Lec1 Sdr Intro

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SDR(Software Defined Radio)


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Introduction

System Architecture

Software Algorithm Radio Frequency

Reconfigurable Architecture

Low Power Design


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Device Mobility Continues to Rise

Kodak Portable MC3

Palm PDA

with GPS Receiver

Nokia Communicator


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Future Mobile Functionality

Purchase tickets (E-commerce)Guide you in the city (GPS, )

Give local information on a point of interest (Bluetooth, WLAN)

Sound, video, animation

User determines the amount of details using hispreferences

Receive e-mail, phone calls, voice-mail (GSM, UMTS)

Make reservations for your dinner (WAP)

Take pictures / video clips (Microdrive)

Listening to music (MP3)

Store your power-point presentation (files)


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Gilders versus Moores law

97 9 9 01 03 05 07

100

10,000

1M

2x/3-6 months

2x/18 months

1000 x

Greg Papadopoulos, Sun Microsystems


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Future trends of mobilecommunications

Mobility

vehicle

pedestrian

static

GSM

3G cellular

WirelessLAN

4G cellular

IntelligentTransportSystems

Millimeter-waveLAN

HAPS

Data rate

10k 2M 50M 156M 622M

Advancedwirelessaccess

2G 3G 4G 5G

2000 2010 2020

High data rateHigh mobilitySystem roamingSeamless connections tobroadband networks


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Commercial Cellular/PCS

Time

2G:Digital voice, messaging &

data servicesFixed wireless loop,

wireless LAN servicesDigital cellular & PCSMacro, micro & pico cells

Cap

abilityEnhancementsby

Generation

1980 1990 2000 2010

1G

2G

3G

4G

2020

1G: Mobile telephoneAnalog technologyMacro cells

4G: Very high bit rate 20~50Mbps (or100Mbps)Multimedia enhancementsFrequency band: 2.2GHz, 5GHz, 7GHz

BER : VOICE (1e-6), DATA (1e-9)2004~2008 4G 2007~2010

Software Defined Radio Opportunity

SDR Forum

3G: Greatly enhanced data communications servicesNarrowband and wideband multimedia servicesHigher spectrum for wideband applicationsMacro, micro & pico cells


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Information Technologyevolution

Before 80 : Middle Age, Computing Sc. belongs to fiefs (IBM, ), no network

All proprietary, no flow : All is parchment or proprietary spreadsheet

80s : All is transparent for a computer scientist

All is file : UNIX (/dev/null, /dev/lpr, ...)

a file is a set of characters which can be manipulated by C language

85s : All is readable on a desk (or a PC) for anybody

All is document (no more interoperability & transparency)

95s: All is an available object on the network for communication

All is document, readable everywhere (HTML page) or executable

everywhere (Java)

Privilege to information access : kiosk, server

00s : All is a digital, fluid & live stream distributed over networks

Nomadic user, virtual presence (user or sw/content move), VirtualMachine & JavaBeans

Ubiquitous IT (networked planet grid) & Mobile computing

infrastructure (Xeo satellites)

05s : All is program, alive on ad hoc networks

An entity on the network is a Java Program (Jini Concept)

Intentional architecture


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Infrastructure of Information System

Distributed

Multimedia

Data

Multimedia Hyperdocument

Infrastructure with QoS, mobility & security

New Services & Usagebiometric Authentication

Adaptive & multi-modal

Human Interface

Speech recognition

Adaptability & customizationof applications according

terminal configuration &

end-users services

Mobile Terminals

Network Computers

New ServicesIntelligent Routers & Switchers

Configurability

Active & Ad hocNetworks

Interface : XML

Protocol: IP

New ServicesIndexation by content

Protection of digital ObjectsNavigation, Search engine

information filtering

Mobile/fix, wired/wireless

Extra/Inter/Intranet


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4G Mobile Communication System

IP Back bone/

Internet4G Network

PSTN

ISDN

Macro-Cell

Indoor Cordless

WPN1-155Mbps 2.4,5,60 GHz band Fixed/ Slow Mobility

Small Private Area

4G MobileOver 2-10Mbps 2-10 GHz Band Vehicular Environments Medium Area

ITS SDR/Multi-mode

Terminal

BWA20-155Mbps 3,40 GHz band Fixed User MetropolitanArea

Micro-Cell

Digital

Broadcasting

Cell


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Future System

Small user interface: pen, voice, gestureMany standards

Real-time processing

Long execution time

Work in a dynamic environment

Quality changes from place to place

Hybrid networking: DECT, GSM, UMTS, WLAN,Bluetooth

Energy-efficient


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ONE phone for many Standards

SDR forum

- Multiple standards

(peaceful co-existence)

- Rapid increase of subscriber

(need high spectrum utilizationtechniques)


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Wireless DataStandards

1800 MHz 2100 MHz 2400 MHz 5200 MHz

GSM

1800 UMTS 802.11 HIPERLAN/1

UMTS 802.11GSM

1800 HIPERLAN/1

TX

RX

EDGE UMTSBT

802.11

HIPERLAN/1

Channel BandwidthData Rate


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Two Forces Drivingthe Wireless Internet

The cellular industry

Wide area coverage.

Global roaming.

Mobile users atvehicular speeds.

Subscription-based.

Licensed bands.

The wireless LAN industry

Local coverage.

No handoff or roaming.

Fixed users. Revenue through equipment sales.

Unlicensed bands.

The

Wireless

Internet


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Heterogeneous wirelesscommunication networks

by Havinga, [email protected]

There exist many wireless communicationnetworks frequency bands

requirements on mobility transmission speed and quality

Examples: Static: wireless LANs (802.11), Bluetooth,

Radio Local Loop Pedestrian: DECT, PHS Vehicle: 2/3G cellular, pagers, broadcast

TV/radio


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Future wireless

communication Two trends will have major impact Wide proliferation of various wirelessaccess networks

Each with their own preferred type ofservice

Different quality: data rates, latency,mobility support, ..

Software radio technologies Programmable radios, Tunable front-ends


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Heterogeneous networks,why?

Due to roaming the network changed e.g. from indoor wireless LAN to outdoorcellular radio

There is coverage from multiple wireless

networks Possibility to select the most appropriatenetwork for a given application, based on forexample Service classification

User requested QoS parameters Available network capacity (bandwidth, latency)

Energy consumption needed


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Heterogeneous networkarchitecture

Goaldesign a flexibleand openarchitecture suitable for avariety of different wireless access technologies, forapplications with different QoS demands, and different

protocols. Key requirements

Different access technologies (Software Defined Radio) Heterogeneous network support (use combination of networks) Mobility management (seamless handover) Wireless system discovery Selection of efficient configuration

Simple, scalable, low cost Energy efficient (always on) Secure Compatible/interoperable with existing and future work Quality of Service support (end-to-end, and local applicable)


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Evolution of the Cell Phone Two co-existent 3-G cellular standards:

Wideband CDMA Also called UMTS, UTRA, IMT-2000.

Standardized by 3GPP.

Evolution of the GSM backbone.

cdma2000 Standardized by 3GPP2.

Evolved from IS-95 CDMA (cdmaONE).

Common traits:

2 GHz PCS band (licensed). Variable asymmetric data rates for multimedia: ~144 kbps to vehicles.

~ 2 Mbps to fixed locations near base station.

Software-defined-radio (SDR) implementation.


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Standardization of WirelessNetworks

Wireless networks are standardized by IEEE.

Under 802 LAN MAN standards committee.

ApplicationPresentation

Session

Transport

NetworkData Link

Physical

ISO

OSI

7-layer

model Logical Link ControlMedium Access (MAC)

Physical (PHY)

IEEE 802

standards


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IEEE 802.11 Wireless LANs

Key features of MAC: Infrastructure or ad-hoc network. Coordinated (PCF) or distributed (DCF) operation.

DCF uses CSMA/CA.

PHY defines data rate and operating band:

Infrared at 1 or 2 Mbps. RF at 1 or 2 Mbps in using FH or DS 2.4 GHZ ISM

band. 802.11b amendment

5.5 or 11 Mbps using DS and CCK in 2.4 GHz band.

802.11a amendment 6-54 Mbps using COFDM in 5-6 GHz U-NII band.

IEEE 802.11 can also be used for broadband access.


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IEEE 802.16 Wireless MAN

Working group on broadband wireless access Focus on providing access to small/medium businessand residential opportunities.

Early stages of development. Task 1

PHY for the 10-66 GHz licensed bands. LMDS band: 500 Mbps in 28-31 GHz band. Task 2

Coexistence of fixed broadband wireless. Task 3

PHY & MAC for 2-11 GHz MMDS licensed bands. Task 4

Fixed broadband version of 802.11a.


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Bluetooth Bluetooth SIG formed in 1998 by Ericsson, Nokia, IBM,

Toshiba, and Intel. Design goals:

Inexpensive: $5 single chip solution. Short range: 10 m or less. Low data rate: < 720 kbps. Peer-to-peer and ad-hoc networking. Data (ACL) and voice (SCO) support.

Technology: 2.4 GHz ISM band.

79 channels of 1 MHz each. Frequency Hopping at 1600 hops/sec. Nonorthogonal binary GFSK modulation.


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Bluetooth Profiles

Hands-free headset.

Cordless telephone.

Synchronization of PDA, cell phone,

computer. Serial port emulation.

Wearable computing.

Wireless LAN access. Ad-hoc network.

Peripherals: Printer, scanner, fax machine.


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IEEE 802.15 Wireless PAN

Standardization began in 1997 under the Ad HocWearables Standards Committee. Same goals and constraints as Bluetooth:

2.4 GHz band, 10 m. range, inexpensive. Task 1

Standard almost identical to Bluetooth. Task 2 Coexistence of wireless LANs and PANs.

Task 3 20 Mbps High-rate PAN similar to Bluetooth 2.

Task 4 Low rate 2-200 kbps PAN with extremely low power

consumption for perpetual sensors.


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W-LAN (MS) PHY LayerParameter GSM 2G Cell W-CDMA 3G Cell W-CTDMA 3G IEEE 802.11 WLAN Bluetooth HomeRF

Operating

Frequency

890-915 MHz (RX)

935-960 MHz (TX)

2110 - 2170 (RX)

1920 - 1980 (TX)

2110 - 2170 (RX)

1920 - 1980 (TX)

2400 - 2483.5 MHz

ISM

2400 - 2483.5 MHz

ISM

2400 - 2483.5 MHz

ISM

Spread SpectrumMethod

TDMA/FDMA/FDD CDMA/FDD CDMA/TDD FHSS None or FHSS FHSS, TDMA orCSMA/CA

Data Rate 9.6 - 64 kbps 32 kbps -384 kbps 256 kbps -4 Mbps 1 Mbps

2 Mbps

0.7 Mbps

2 Mbps (future)

1 Mbps

2 Mbps

Modulation

Method

(Index)

GMSK (BT=0.3) QPSK data

modulation on up

and dow n;

Spreading is QPSK

on up and BPSK on

dow n.

QPSK data

modulation on up

and dow n;

Spreading is QPSK.

SF = 2-16

2-FSK (0.32)

4-FSK (0.16,

optional)

2-FSK (0.32)

TBD (TBD)

2-FSK

4-FSK (required)

Hop Rate opt, 21.66 Hz

(1/4.615 ms)

na na 2.5 Hz 0 / 1600 Hz (max) 50 Hz

Channel

Switching Time

na 224 msec 220 msec 300 msec

Rx/Tx Turnaround

Time

half duplex full duplex half duplex 19 msec 220 msec 25 microsec

Antenna Divers ity na Optional Optional Optional Not Required

Tx RF Powe r


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Wide Frequency bands

System Frequency bands

Cellular

PDC

CDMA one

PHS

800 MHz

1.5 GHz

1.9 GHz

Wireless LAN

IEEE802.11

MMAC

Altair

2.4 GHz

5.15 ~ 5.25 GHz

19 GHz

Pager

NTT

POCSAG 250 MHz

Cordless phone Analog 250/400 MHz

SDR : SW , ( , , , , )


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New Digital BroadcastingTechnologies Europe

DAB, Digital Audio Broadcasting Designed as a follower of FM stereo system DQPSK/OFDM, 2k DFT E.g., 6 high-quality stereo channels in 1.5 MHz BW Data services Designed for mobile reception

DVB-T, Terrestrial digital TV transmission system 64-QAM/OFDM, 8k DFT E.g., 4 normal quality TV channels (MPEG2) in place of a single analog

channel of 7 or 8 MHz stationary & portable reception, mobile reception under study DVB-S, Digital satellite TV transmission system QPSK

much commonality with DVB-T in source and channel coding DVB-C, Digital Cable TV transmission system 64-QAM much commonality with DVB-T and DVB-S in source and channel coding


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SDR : Abstract All functions, modes, and applications can be

reconfigured by software. Flexibility to handle a variety of multimedia

services and standards. Adaptability to accommodate environment,

required level of security, and availableresources.

Automatically set its parameters of operation onthe basis of cost efficiency or requested QoS

Radio equipment reconfigured by downloadablesoftware, at any layer of the protocol stack. New capability can be added without hardware

changes flexible/ reconfigurable hardware platforms

Configurable-ASIC, DSP, MCU, FPGA


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SDR Forum

- 1996 MMITS (Modular MultifunctionInformation Transfer Systems) Forum

- Motorola, Lucent, Harris, Nokia, Ericsson, Siemens,Alcatel, Orange, Panasonic, Sony, ,

, LG ETRI,, - SDR

-

SDR - SDR


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SDR Forum


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S/W SDR


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Hardware in software-defined radioterminal

-analog stage contains amplifiers, mixers,synthesizers, ADCs( analog-to-digital converters),DACs( digital-to-analog converters)

-With different RF specification such as carrierfrequency, bandwidth, modulation scheme, andtransmission power

-digital stage contains FPGAs, DSPs, CPU, ASICs, andI/O interfaces functions such as digital up/downconverters, digital filters, and modems.

- ASIC : digital filtering, frequency mixing, signalgeneration

- FPGAS (DSPs) : channel codec, speech codec

(Its reconfigured by replacing program.)


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Softwares insoftware-defined radio terminal

-Basic programs : radio function libraries : the sets thatexpress basic radio functions (contain filter programs for

FPGA, modem programs for DSP, or the hardware control

commands)

- OS and device driver : The OS is run to control overall

operation of system. The device drivers are programs for

each hardware control such as amplifier, a synthesizer,

ADC and a DSP.

- Application program : .

This program prepared for a specific radiostandard, such as GSM, IS-95, or IMT-2000.


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SDR Benefit

Potential for significant life-cycle costreductions

Uniform communication acrosscommercial, civil, federal and militaryorganizations

Over the air downloads of new featuresand services as well as software patches

Debug is impossible for mobile terminalsafter they are sold. PC Open Modular Architecture


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SDR API : ,

,

Protocol : GSM2Plus, CDMA, 3GPP, 3GPP2 , , , software

radio

SDR framework : Open System, IDL : interface, minimum CORBASoftware Download: SDR

software downloadRF Module:

, RF , , Wideband ADC and DAC

Baseband DSP Module: software , DSP , HW/SW

interface


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SDR-processing requirements

for Mobile Communications (GSM)Modem w/ basic equalizer

2 MFLOPS for CDMA sector2.5 MFLOPS for a wideband CDMA4 MFLOPS for a G4

Requires high performance devices s.t

PowerPC G4

PowerPC with Altivec CPUs

TMS320-C6x

SHARC/Tiger-SHARC DSPs


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SDR

( ETRI SDR )

DigitalRadio SDR SWR

LNA/PA, Down/upconverter

DSP SW

.

HW

DSP

SW

HW s/w


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SDRMicro controller :

firmware .RTOS :

.Protocol Stack : GSM2Plus, CDMA, 3GPP, 3GPP2,

. :

. : .Middle ware : Client/server

. .


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Distributed Layered Virtual Machine

CommunicationsApplications

Common Applications

Networking Aspects(Network Waveforms)

Radio Aspects(Basic Waveforms)

Infrastructure Aspects

Hardware Platform

Mapping, Data Bases,Location Awareness, ...

Encapsulated Waveforms,Bridging, Location Estimation, ...

Network Layer &Protocol Stack,State Machines

Physical Layer &Data Link LayerState Machines

Infrastructure State MachinesReal-time CORBA/IDL

Antennas, RF (Band, Bandwidth)Operating System (UNIX,)

Instruction Set Architecture

Map Update Agent

SINCGARS(SG) Bridging

HAVEQUICK

Front EndProcessing

NetworkSecurity

ProtocolStack

Modem INFOSECData ProcessingVoice

Domain/Resource ManagerReal-Time Distributed Processing Services

ASICsFPGAs

DSPsGP Hosts

WaveformPersonalities

OSs


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SDR Layers

OS Interface Standard(POSIX)

Middleware (ORB)

Operating System

Hardware

Hardware Abstraction Layer

Computational Framework

Management Framework

Waveform/ApplicationsFramework

Services Frameworks

Application

PlatformServices

Platform


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Sourceset

Evolutionsupport

Channel set

Source codingand decoding

Service andNetwork support

INFOSEC RF/channelaccess

IFprocessing

Modem

Channel coding anddecodingJoint control

Multiple personalities

External environment

SDR Architecture


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Software Radio Layering Model


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Standardization

Application

APIs

Bindings

RTOS

BSP

HW

Application

APIs

Bindings

RTOS

BSP

HW

Application

APIs

Bindings

RTOS

BSP

HW

Application

APIs

Bindings

RTOS

BSP

HW

Standardized


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Smart-Radio-on-a-Chip

IP-basednetwork

Monodyne


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Design Issues of SDR Modem

SDR

ADC/DAC

DSP

MICROWAVE

CIRCUIT

Using signal processingcompensate a microwave

circuit deterioration Recognize what kind ofsignal processing is done

in RF-Band and Base-band


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4G Modem Technologies

Reliable High Rate/Broadband Transmission Flexible applying of various modulation

Adaptive SDR System to Varying Channel & QoS

More Capacity & Spatial Diversity =>

Space-Time Processing Multiple Access for Higher rate packet

High Spectral Efficiency => OFDM

For Varying Channel & QoS => Link AdaptationTechniques


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Signal processing in base-bandand IF/RF

base-band IF/ RF

Echo cancellation

Equalization

spectrum spreading

de-spreadingSynchronization

SDR RF (GSM2Plus + CDMA + 3GPP + 3GPP2 )

RF front-end - / RF

modulation/

Demodulation

, PDC/PUC (Programmable Down/UpConverter)

Timing recovery / RF coding/decoding

CDMA,OFDM

RF

PLL VCO


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Digital Radio

Diplexer

Downconvert(LNA/Mixer

/Filter)

FrequencySynthesizer

Upconvert(Mixer/Filter/Amp)

IFProcessing

(Amp)Bit-streamProcessing

RFProcessing

AnalogOutput

DigitalAnalog

BasebandProcessing

(Modem)

DigitalOutput

Diplexer

Selects the channel according to different carrier frequency

and different channel bandwidth using fixed analog-definedchannel selection filters.

S f D fi d R di


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Software Defined Radio(Heterodyne )

A/DD/A

Diplexer

Amp

IF

/De-

IFProcessing

(Channelizer/De-

channelizer)

Bit-streamProcessingProcessing

(Modem)

Baseband

Processing

(Modem)

DigitalAnalog

the multi-channels are fed to the single wideband analog-stage.Then all channels are converted to digital signal with onewideband high-speed ADC. The desired channel is then selectedfrom the digitized multi-channels with the software-definedchannel selection filters in the digital-stage.

Software Radio


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Software Radio(Homodyne )

Hardware/Software Co-design

Software

DAC

DAC

ADCADC

ProcessorReconfigurable(Programmable)

- ProcessorNetworkNetwork


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A tl di it l i


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A mostly digital receiverarchitecture

Go digital at the earliest possible stage

Use system level design choices tosimplify the analog RF requirements as

much as possible Rely on low power digital design

techniques to compensate for increasedbaseband complexity

AnalogFront-End

A/DConverter

DigitalBaseband

Processing

RFFilter

Custom Analog IC Custom Digital IC


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Step 1: make as much of the circuitrydigital as possible


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Step 2: achieve programmability at higherfrequencies to reduce hardwares to be usedfor multi-mode cellphone


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Dual Mode (2G/3G)

Transceiver Configuration

ANTCONT

FRONTEND

P.A.

FRONTEND

P.A.

WBFIL

WBFIL

NBFIL

NBFIL

A/D

CONT

DESPREAD

SPREAD

RAKE

MOD

DEM

CODEC

DEM

MOD CODEC

DSP

for 3G System

for 2G System

W CDMA CDMA2000


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Baseband processing

RF

Conversion

to IFand A/D

CDMA2000

S/W part(DSP)

WCDMA

S/W part(DSP)

Flexible H/W part

(FRBA or FPGA)

H/W part

(ASIC)

ModulatorDemodulator

Despreader

Searcher

Time Tracker

AFC

Channel estimator

Lock detector

RAKE combiner

Power control

Channel codec

Rate matching

Multiplexing

I/O controller Process controller Program memory

AlgorithmPartitioning

16

W-CDMA,CDMA2000


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Problems in SDR

Existing portable phones are verycompact, with long battery life, HighMIPS and low cost.

Illegal use causes serious interference Download problem.

The volume of s/w downloadedincreases -> time is lengthened

Manufacturer-specific know-how canbe leak out security

S/W Virus or hackers The method of managing several units

for multi-mode and multi-mode systemsand placement of broadband antenna


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More Performance for futureSDR

High frequency MMIC(Monolithic Microwave Integrated

Circuit) analog Interface between analog and digital

wideband/high speed/high resolution ADCand DAC chip

Digital Processing- DSP (Digital Signal Processor) ASIC (Application Specific Integrated Ci

rcuit) FPGA (Field Programmable Gate Array)


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Some Quotes from SDR Forum

SDR delivers a robust set of features to the consumer in a cost efficientmanner for the provider. - Brian Tropper, President, TropperTechnologies

SDR bridges multiple standards as well as legacy and future systems. -Dr. Eric Christensen, Technical Staff Engineer, Motorola

SDR has great a future and will open the doors for software developers.- Mark Adams, VP, Software Technology, Inc

Time is now. Vendors have technology in place to offer products. -Mark Cummings, President, CEO, enVia

Its inevitable. - Graham Mostyn, VP System Engineering, ChameleonSystems

SDR is a mainstream way to solve problems. - Rodger Hosking, VP,Pentek

Harris is a strong supporter of SDR. - John Fitton, Senior Scientist,HarrisCorp.

SDR is indispensable. - Mitsuyuki Goami, General Manager, KokusaiElectric CoSDR will be the only way radios operate. - Karl Davis, Senior Principal

Software Engineer, Raytheon


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Software Radio Phase Space


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SDR Adoption Timeline,SDR Forum

Duration

2000

2001

2003

2005

Base Stations

Product Introduction

Limited use byInfrastructureManufacturers

Increased use due to 3G

Terminals

Almost no usage

Initial usage as multi-mode, multi-band Cellular/PCS in high-endand roaming products

Used for 3G capabilities(information centric product,embedded applications in computers,

autos...)Widespread adoption by mostmanufacturers as coreplatform


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Reconfigurable Radio Systems

Business Model

Regulation

Spectrum

Standards

Enabling Technologies

Terminals Applications

Base Stations Middleware

Network Services

S

ystem

Application


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R&D in Reconfigurable Radio Systems &Networks in Europe

Applicatio

n

Baseband

IF

RF

Antenna

Spectrum

Business Model

Network

Base Station

Terminal

0

1

2

3

4

5(number of projects)


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Asian ActivitiesProject Players Focus

3GPP WCDMASDR Test Bed Samsung (WCDMA+CDMA2000)

(GSM+WCDMA)

Receiver technology, globalroaming, multi-mode operation

Software RadioBase & PersonalStation

Prototypes

NTT Adaptive array

antennas,modulation,signalprocessing, over-the-air

downloadsARIB - SoftwareReceiverTechnology

ARIB (Toshiba, Anritsu, GunmaUniv, Koden Electronics, KDD,Shizuoka Univ, Tokyo Inst ofTech, Tohoku Univ, NEC, JRC,Fujitsu, Japan Defense Academy,

CRL)

Receiver technology,reconfiguration, softwaredownloads

SDR Test Bed SK Telecom Reconfigurable equipment andservices - Planning Phase

HardwarePlatform of theSW Radio

National Natural ScienceFoundation of China & TsinghuaUniv

Reconfiguration & HardwareArchitecture

European Activities


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European ActivitiesProject Players Focus

LCM Mobile CommunicationsLaboratory

Swiss Federal Institute ofTechnology in Lausanne &Institut Eurecom

3G real time test bed;adaptive antennas,reconfiguration, multi-userantennas, base stations

TRUST (TransparentlyReconfigurable UbiquitouSTerminal)http://www.ist-trust.org

European Commission (France Telecom, Telefonica,Siemens, Motorola,Panasonic, Bosch)

User terminalreconfiguration, multi-mode,multi-band operation

PASTORAL (Platform AndSoftware for Terminals:Operationally Re-configurAbLe)

SODERA (re-configurable lowpower radio architecture forSDR)

European Commission (STMicroelectronics, Alcatel,France Telecom, CSELT,Sirius, Thomson)http://www.ist-sodera.org

Re-configurable, real-timeplatform for 3G mobile baseband development

MOBIVAS (Mobile Value-Added Services)

European Commission (Thomson, NEC, Unis,Innovators, HellenicTelecommunications Org,Ecole Nationale Superieuredes Telecommunications)

Define, design, develop, andvalidate an integratedapplication architecture forSDR software downloads


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North American ActivitiesProject Focus

CHARIOT (Changeable Advanced Radiofor Inter-Operable Telecommunications),

Government &Virginia Tech

Smart antenna and reconfiguration

JTRS(Joint Tech. Radio System) sw , SDR forum

2001.11 SCA 2.2ISI(Information Sciences Institute) CPU, GPS ,

SORT (Software radio technologies)

SLATS (Software libraries for advancedterminal solutions)

PROMULA (Programmable Multimoderadio for multimedia wireless terminals)

Standardization


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SDR -

C4I


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SDR(,) ,

1996,

, S/W ,


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SPEAKEasy

1970 DARPA

Phase-1 (1992 - 1995 ):

4- ,

Phase-2 (1995 2000 ): -RF , ,


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Joint Tactical Radio System

, , /

30-512 MHz

Joint Tactical Radio System 2CAN/PRC-117F SDR , Harris

GloMo Project


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GloMo Project(Global Mobile Information)

BBN Technologies- Support for distributed real-time

MMWN(Multimedia applications in Mobile WirelessNetworks)SRI International

- Advanced secure wireless integrated networksCamegie Mellon University

- Pyxis-Middleware for distributed multimediaprogramming

Rutgers University- Dataman project-information services for lowpowered mobile clients

- Numble-many time, many where communicationssupport for information system

l


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GloMo Project

SAIC- SEAM-LSS(Simulation and Evaluation of AdaptiveMobile Large Scale networks Systems)Virginia Tech MPRG(Mobile and Portable RadioResearch Group)[8]

- Software radio using reconfigurable computingStanford University

- Low power distributed mobile networks- Reconfigurable multimode, multi-band information

transfer systemsUTPA(University of Texas-Pan American)

- - Generic control channel mechanism

Gl P


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GloMo ProjectUCLA(University of California in LA)

- Handheld untethered nodes for high performancewireless network systems- Design of mobile adaptive networks using simulation

and agent technology(GloMo SIM)UCSC(University of California, Santa Cruz)

- SPARROW(Secure Protocols for Adaptive, Robust,Reliable, and Opportunistic WINGs)University of California, Berkeley[10]

- Towards a wireless overlay internetworking

architecture- BARWAN(Bay Area Research Wireless AccessNetwork)University of Kansas

- RDRN(Rapidly deployable radio networks)[11]

CH R V h


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CHARIOT, Virginia Tech(Changeable Advanced Radio for Inter Operable Telecommunications)

-

- Analog Device ADSP-21020

- Analog Device ADSP-21020 multistage

-

- -

AFFL/IF


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AFFL/IFMultiband Multimode Radio

Radio SW

QoS

JTRS compliant plug and play HW/SW


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Global Cellular/PCS Markets US - delayed to exploit capital investment in analog systems Europe - GSM to share common R&D & platforms Japan - Exhausted PHS & PDC spectrum for CDMA

Proliferation of standards and spectral capacity

call for multiband, multimode services on single carrier systems

Commercial SDR Drivers

Market

USA

Japan

Europe

First Generation

AMPS & Derivatives

NTT-Analog, JTACS

Various Analog Stds

Second Generation

TDMA, CDMA, GSM

PHS, PDC, GSM

GSM

Third Generation

UW136, Edge/NA,

3GCDMA-DS, 3GCDMA-MC

3GCDMA-DS

IMT-2000, 3GCDMA-TDD

B d l f l P


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Business Model for Wireless PCS

APn

Application

Providers

MMM

Multi-

Media

Mgr

CPn

Content

Providers

OEM System

Suppliers

OEMn

Network

Operator

NO

Enhanced

Capability

UmUsers

Wireline

Operator

WL

Wireless

Personal Area

Network

PAN

Roaming

Network

Operating

RN

Function

Developer

(SDR)

FD

Service Provider

ClearcutCommunications

SP

Regu-

latorsFI

Financial Institution

Transaction Flow

Peter G. Cook, Stephen Hope

G i B i M d l


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Generic Business Model

Integrator

Fee : OS, ORB, SCA ...

Responsible for 1 WF

Integration

validation

certificationWF Assembler

GLUE

Editor SW

Editor

HW

Manufacturer

SW 3d party

Editor

HW

Upgrade

System

ProviderResponsible for multiple WFs

Interconnect with

net provided by

Customer

ConsultantSpecify

Define System

Asynchronous lifecyclesProduct 8 yearsChips 3 yearsSw/ Com. 2 yearsVarious Military Programs


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GNU Radio

Its a free software defined radio A platform for signal processing on

commodity hardware

Create a practical environment forexperimentation & product delivery Expand the free software ethic into

what were previously hardware intensivearenas

http://www.gnu.org/software/gnuradio http://www.opencores.org/projects/pci

Eric Blossom, [email protected]

C l i
http://www.gnu.org/software/gnuradiohttp://www.opencores.org/projects/pcihttp://www.opencores.org/projects/pcihttp://www.gnu.org/software/gnuradio


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Conclusion SDR is useful

cost saving (not necessary replacinghardware)

enhancing the system performance of

functions SDR depends on

- progress of hardware technology and

- high speed and low power consumptionDSP and ADC/DAC, tunable and low lossfilter, ultra wideband power amplifier

Standardization of SDR


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Software Radio Architecture Object-Oriented Approaches to wirelessSystems Engineering - J. Mitola III

Simulation and Software Radio formobile communications - H. Harada & R.Prasad

Software Defined Radio, Origins,Drivers and International Perspectivesedited by Walter Tuttlebee

Lec1 Sdr Intro

Documents

Transcript of Lec1 Sdr Intro