Software Defined Radio Technology

Dr.Ir.Joko SuryanaLaboratory of Radio Telecommunication and Microwave

LTRGM ITB

Outline

• Introduction• From 1G to 5G• 5G, from Device to Data Center

• Programmable Networks• Software Defined Radio Technology• From Software-Defined Radio to Software-Defined Networking• Project Example :

• Princeton Univ : Software-Defined Cellular Core networks• New York Univ USA : SDN-controlled LTE using SDR

• SDR Projects at LTRGM ITB• SDR for 5G Physical Layer Design• SDR for AESA Radar Receiver• SDR for Nanosatellite Ground Station• SDR for Communication and Identification for IFX

Introduction

Intro : From 1G to 5G

Source : Informa 2014, Evolution of telecoms: from 1G to 5G

WHAT IS 5G?

5G is the short for fifth generation, a

mobile broadband technology that is

in the early stages of works and

likely to be in place six to seven

years from now. A 5G network will be

able to handle 10,000 times more

call and data traffic than the current

3G or 4G network.

Data download speeds on 5G

networks are likely to be several

hundred times more than 4G.

Intro: 5G, from Device to Data CenterIntel announced that it ispartnering with Ericsson,Korea Telecom, Nokia, SKTelecom and Verizon topush 5G mobile networksfor business and residentialcustomers.The company is already inthe prototyping stages for5G hardware and will begin5G wireless trials withKorean Telecom in 2018.Intel plans to transform“from a PC company to acompany that powers thecloud and billions of smart,connected computingdevices.”

Programmable Network

Software Defined Radio Technology• What is a Software Defined Radio ?

• Software Defined Radio (SDR) refers to the technology wherein software modules running on a generic hardware platform are used to implement radio functions.

There is market demand formore flexible and extensibledesigns, with more functionsimplemented in software .Software-based implementationsare better than hardware onesfrom the point of view ofmaintenance, since bug fixes andnew versions can be rolled outafter the product has beenreleased.In addition, the same hardwarecan be employed for differentscenarios simply by applying asoftware update.

From Software-Defined Radio to Software-Defined Networking• Following the increasing adoption of software-

based implementations, we believe that futurenetworks will be essentially programmablenetworks, where programmable devices runapplication- and/or service-specific code.

• Those networks will be customized for thebusiness and customers’ needs, providing higherdegrees of performance, reliability and scalabilitythan general purpose solutions.

• Those solutions are possible becauseprogrammable networks will have configurabledata and control planes.

Software-defined radio and programmable data

planes typically act on the physical and data link

layers; software-defined networking at the upper

layers; and virtualization on multiple layers.

Project Example 1# (Princeton Univ, USA) : Software-Defined Cellular Core Network

1.

2.

3.

Source : Xin Jin, “CellSDN: Software-Defined Cellular Core networks”,Princeton University

Project Example 1# (Princeton Univ, USA) : Software-Defined Cellular Core Network

• CellSDN uses commodity switchesand middle boxes to build flexibleand cost-effective cellular corenetworks

• CellSDN supports fine-grainedservice policies and trafficmanagement policies

• CellSDN achieves scalability with• Novel asymmetric edge design

• Novel selectively multi-dimensionalaggregation

• Novel hierarchical controller design

Source : Xin Jin, “CellSDN: Software-Defined Cellular Core networks”,Princeton University

Project Example 2# (New York Univ, USA) : SDN-controlled LTE using SDR

• NYU has developed a generic LTE MAC / PHY framework that can be used to prototype complex cellular use cases within the SDN framework.

• The functions of the MAC and higher-layerprotocols run on a Linux computer.

• The protocol stack communicates with PHYlayer running on NI/PXI system over Ethernetusing an L1-L2 API.

• The physical layer of LTE system is based onOFDM transceiver for the eNB and UE inLabVIEW FPGA using several FlexRIO FPGAmodules due to the high throughputrequirements.

• NI 5791 FlexRIO Adapter Module (FAM) as RFtransceiver.

• This module has continuous frequencycoverage from 200 MHz to 4.4 GHz and 100MHz of instantaneous bandwidth on both TXand RX chains.

Source : Russell Ford et.al , “Real-Time LTE Testbed using ns-3 and LabVIEW for SDN in CROWD”, NYU Wireless

Project Example 2# (New York Univ, USA): SDN-controlled LTE using SDR

Source : Russell Ford et.al , “Real-Time LTE Testbed using ns-3 and LabVIEW for SDN in CROWD”, NYU Wireless

SDR Projects at LTRGM ITB

SDR Projects at LTRGM ITB 1#:5G Physical Layer Design

• This undergraduate thesis exploits SDRto implement filtered-OFDM as the newcandidate of 5G physical layer by usingLabVIEW provided by NationalInstruments. The OFDM physical layerdesign are implemented using alreadyknown standard, 3GPP Release 8. Thisstandard is used to design 20 MHz and40 MHz OFDM. To fulfill the criteria offiltered OFDM, filter is added to bothtransmitter and receiver to remove intersub-band interference so that it will leadto more efficient frequency spectrumutilization. Over the air transmission isdone by transmitting text and image fileusing PXIe-5646R.

• The designed system has successfullydone by transmitting text and image inreal transmission within low bit errorrate. In addition, throughput analysis isdone in 20 Mhz and 40 MHz sub-bandwithin the 200 MHz total bandwidth. Thetheoretical throughput calculation that isobtained is 887,04 Mbps. This result isclose enough with 5G throughputrequirement according to the referenceused in this thesis

SDR Projects at LTRGM ITB 1#:5G Physical Layer Design

SDR Projects at LTRGM ITB 2#:AESA Radar ReceiverAn active electronically scanned array (AESA), also known as active

phased array radar (APAR), is a type of phased array radar whose

transmitter and receiver (transceiver) functions are composed of numeroussmall solid-state transmit/receive modules (TRMs).

SDR Projects at LTRGM ITB 2#:AESA Radar Receiver The function of the receiver is to take the weak echoes from the

antenna system, amplify them sufficiently, detect the pulse

envelope, amplify the pulses, and feed them to the indicator. The

receivers used in radars are capable of accepting weak echoes

and increasing their amplitudes by a factor of 20 or 30 million

SDR Projects at LTRGM ITB 3#:Nanosatellite Ground Station

A ground station is a very important part of asatellite communication system. Sending asatellite to space would not be of much use ifno ground station is present. The use ofUniversal Software Radio Peripheral (USRP)minimizes costs for such systems and adsflexibility.

SDR Projects at LTRGM ITB 3#:Tx Nanosatellite Ground Station

SDR Projects at LTRGM ITB 3#:Rx Nanosatellite Ground Station

SDR Projects at LTRGM ITB 4#:Communication and Identification for IFX

•Communications: The ability tocommunicate by either voice ordata link means with cooperativeforces, be it wingmen in the sameflight of aircraft, airbornecommand center or troops on theground.•Identification: The rules ofengagement for a given theatre ofoperation will necessitate theclassification and identification of atarget before permission to engageis given.

SDR Projects at LTRGM ITB 4#:IFF System• Identification, friend or foe (IFF) is an identification system designed for command and control. It enables

military and national (civilian air traffic control) interrogation systems to identify aircraft, vehicles or forces asfriendly and to determine their bearing and range from the interrogator. IFF may be used by both militaryand civilian aircraft.

SDR Projects at LTRGM ITB 4#:IFF System

SDR Projects at LTRGM ITB 4#:IFF System

SDR Projects at LTRGM ITB 4#:Link-16

• Secure, Jam Resistant Tactical Data Link• Provides Situational Awareness,

Targeting and Tactical informationthrough the Link 16 network

• Utilises a Time Division Multiple Access(TDMA) Architecture

• Pseudo randomly frequency hops over51 frequencies

• Transmits data in the form of pulses• Operates in the 960 – 1215 MHz

frequency band

SDR Projects at LTRGM ITB 4#:Link-16

SDR Projects at LTRGM ITB 4#:Link-16

Thank You