VTT project results

GIGA Result Promotion 29.03.2011

Technology Manager Kyösti Rautiola (kyosti.rautiola@vtt.fi)

VTT Technical Research Centre of Finland

230/03/2011

Table of contents1. Research focus

• topics and research volumes

2. Key results• wireless access

• seamless networking

• network support

3. Co-operation• industry

• research organisations

4. Conclusions

Appendix: Contacts to project and result details

330/03/2011

1. Research focus Theme Wireless access Seamless networking Network support

Researchtopics

IMT-A/4G radiolink testbed (FRACTA & WINNER+, 2006-2010) implementation techniques of radio transceivers with antenna arrays at 60 GHz (TAFE, 2006-2007) cognitive communication (COGNAC, 2008-2010) spectrum sharing in home base station architecture (HOMESNET, 2009-2012) power efficiency in mobile radio networks (OPERANET, 2010-2011)

algorithms for broadband infrastructure (ABI, 2006-2009) architecture and protocols for heterogenous multiaccess networks (MERCONE, 2006-2008) dependability evaluation methods for IP networks (IPLU, 2007-2009) scalable video coding (SCALNET, 2008-2010) IP-based mobility solutions (WISECITI, 2008-2010)

security testing and monitoring (TNT, 2006-2008) product testing over converging networks (CNL, 2007-2008) LTE testing technology (CROSSNET, 2008-2010) QoS measurement solutions (EW2, 2008-2011)

VTTVolume

~ 27 person years (36%) ~ 23 person years (31%) ~ 25 person years (33%)

430/03/2011

2. Key results – wireless access

530/03/2011

IMT-A/4G radiolink testbed

two sequential projects: Future Radio Access Concept: Technology and performance Assessment (FRACTA) Wireless world INitiative NEw Radio+ (WINNER+) in EU CELTIC program

Real-time IMT-Advanced Radiolink prototype: MIMO-OFDM radio link with over 100 Mbit/s data rate Measurements with the new ITU-R radio channel models

PHY layerMIMOOFDMModulationFEC coding

PHY layerMIMOOFDMModulationFEC coding

PHY layerMIMO

OFDMModulation

FEC coding

PHY layerMIMO

OFDMModulation

FEC coding

Spatial multi-plexing

Spatial multi-plexing DiversityDiversityDiversity

BeamformingBeamformingBeamforming

Inform-ation

on link quality

Inform-ation

on link quality

Selection of transmit mode

MAC layer

Selection of transmit mode

MAC layer

Selection of transmit mode

MAC layer

Selection of transmit mode

MAC layerDecision on selected transmit mode

630/03/2011

4G Radio Prototyping Environment Real-Time IMT-A/LTE subsystem Simulator&Test Bench

730/03/2011

Technologies for antenna array front ends (TAFE)

Prototype CMOS circuits for 60 GHz frequency band: Oscillators, amplifiers, frequency doubler, phase switch, Lange coupler, mixers

Low-temperature co-fired ceramic (LTCC) substrate: Electrical characterisation, conductor processing, band-pass filters, antenna arrays and feed networks

Flip-chip bonding: Thermo-compression, gold stud bumps MATLAB simulations of nonlinear effects: Signal constellation, antenna

radiation pattern Potential application areas: very high (Gbit/s) data rate WLAN/WPAN,

wireless backhaul for cellular networks, millimeter wave identification, anti-collision and handheld radars, passive millimeter wave imaging, environmental measurements and monitoring

Photograph of 60 GHz oscillator

a) Radiating patches, b) reactive feed network,c) Wilkinson feed network

830/03/2011

Cognitive and Opportunistic Wireless Communication Networks (COGNAC)

Main target of the project: Development of fundamental techniques for cognitive radio systems (CRS) that can obtain knowledge of environment and internal state, adjust operations according to the knowledge, and learn from the results.

Obtaining knowledge

Decision and Adjustment

Learning Target of VTT work: In addition to the main target,

introduce CRS to spectrum regulatory framework

Main result(s) of VTT work: • Fundamental techniques for obtaining spectrum

availability information and selection of transmission channels were developed, filed for patenting, and published.

• Adaptive transmission power control methods were developed and published.

• Introduction of CRS to spectrum regulatory framework was promoted substantially by contributions, presentations and participation in international forums.

Cognitive cycle

930/03/2011

Home Base Station: An Emerging Network Paradigm (HOMESNET)in EU CELTIC program

Project address technical challenges, as well as, contribute actively in the regulatory and standardization initiatives that serve to bring the home base station concept to forefront as mainstream in-building solution

Goal: a cognitive radio like home base station that is aware of its environment. Research is focusing on obtaining

knowledge on the surroundings of the home base station either by sensing the spectrum or sharing spectrum usage the information between the home base stations and macro base stations.

Analysis and decision-making process adjusts the frequency of operation and power level to minimize the interference and to obtain the link coverage

HBS

Adjacent HBS

Adjacent HBS moved to balcon

Macro-cell

HBS = home base station

1030/03/2011

Optimising Power Efficiency in Mobile Radio Networks (OPERA-Net)in EU CELTIC program

General targets for the CELTIC project: Radical improvement in energy efficiency at system level Develop metrics and key performance indicators for mobile network efficiency Enable leadership for EU industry in environmentally sustainable mobile networks

VTT’s goals: Development of a methodology for evaluating average power amplifier (PA) efficiency with various multi-antenna and power control techniques. In addition, bit error rate performance is provided. Different type of PAs can be used.

Exploitation potentiality: Using the average PA efficiency, a PA manufacturer can show the benefits of their PA design in a given system, or a system designer can select efficient communication techniques for a given PA.

Main result(s): The average PA efficiency has been analytically calculated for different power control rules and multi-antenna techniques. Results are available for both constant amplitude signal and OFDM signal approximation. The bit error rate as a function of transmitted signal-to-noise ratio has also been calculated. Channel models used so far include flat fading with Rayleigh and Rician distribution.

1130/03/2011

2. Key results – seamless networking

1230/03/2011

Algorithms for Broadband Infrastructure (ABI)General objective: To produce fundamental results on several algorithms that are essential for future broadband networking, and to develop new solutions for them. VTT’s goals: New algorithms and theoretical results on (i) overlay networks and p2p solutions, and (ii) statistics of teletrafficVTT’s main results:A. Structure of large random networks with infinite variance of node degrees•rigorous analysis how the typical distances grow if a top part of the core is removed•semi-popular description and discussion of the ‘soft hierarchy’ architecture providing loglog Ndistances

B. Peer-to-peer file-sharing with fully distributed (trackerless) algorithms•identification of the emergence of ‘rare chunk phenomenon’ when a simple greedy algorithm is used•new simple algorithms alleviating the rare chunk problem invented (paper accepted to Queueing Systems)•PlanetLab experiments on the own Chord-based PAN-NET client

C. Statistical methods for dependent heavy-tailed quantities•analysis of statistical dependence of file volumes and durations in TCP traffic captured from a mobile operator’s network•parametric model of the unobserved distribution of rates of largest flows given the observed joint distribution of flow sizes (bytes) and durations

1330/03/2011

Multi-access Experimentations in Real Converging Networks (MERCoNe)

Goal: To study and develop mechanisms for heterogeneous multi-access networks and test the developed solutions in real network environments, to design and develop a cross-layer and cross-domain triggering solution to support application and protocol optimization in heterogeneous multi-access networks

Results: MERCoNe architecture for cross-layer and cross-domain information management Triggering Engine prototype modified for MERCoNe use and integrated into common

demonstrators Vertical handover prototype including Secgo’s Mobile IP solution enhanced with cross-layer

communication aided decision-making Trigger sources for 3G and WLAN networks and terminals Testbed implementation to VTT’s CNL laboratory

1430/03/2011

General objective: To develop methods for assessment of the dependability of IP networks. Goals: (i) Make case studies with industrial partners, (ii) develop methods for monitoring of dependability, (iii) study the cost of dependability, (iv) study human activity in network operation.

Main results:

A. Dependability case of Funet core network •a methodology for creating and maintaining an integrated view on the dependability of a network was developed and tested on Funet B. Monitoring of availability•problems of fault location in multicast IP-TV distribution produced by collaboration of several enterprises were analysed and a solution proposedC. Cost of dependability•CAPEX and OPEX costs of various reliability improvements were analyzed•reactive and proactive reliability improvement strategies were compared in the context of an on/off component model of the Funet core networkD. Human activity in network operation•VTT’s unique methodology for studying experts' work in high-tech environments was applied to investigate the work of Elisa’s personnel•a theoretically structured view on Core task demands was created; Elisa itself considered the results very useful

Dependability evaluation methods for IP networks (IPLU-II)

1530/03/2011

Scalable Video Coding impact on Networks (SCALNET)in EU CELTIC program

Main goal: To define novel use cases and scenarios for SVC (scalable video coding) services, and based on these, to develop and demonstrate mechanisms for adaptive SVC video transmission in heterogeneous networks

Main results: 4 novel use cases and 20 scenarios for SVC usage A complete system architecture for SVC provisioning in

heterogeneous network environments SCALNET system component software integrated into

the common demonstrators Two versions of the multi-interface streaming

demonstrator See:

http://www.youtube.com/watch?v=K_Ol2JN0RAg

1630/03/2011

Wireless Community Services for Mobile Citizens (WISEciti)• The project studied various aspects related to the mobility enabling technologies for acquiring

insight to the future IP-based mobility solutions and their impact.• DCMF (Distributed control and management framework) framework. Enables control and

management actions and information change for mobile devices as well controlling mechanisms for the network side nodes.

• NES (Network Expert System) to assist decision-making in heterogeneous wireless networks. SOM based cognitive system.

• Prototype/testbed available in VTT’s Converging Networks Laboratory.

1730/03/2011

2. Key results – network support

1830/03/2011

Security Testing and Monitoring (TNT)

The main result was a generic framework/process for security testing and monitoring with guidelines to:

Integrate security testing to company’s/project’s other R&D activities,

Improve a security level of the product with systematic way,

Bring out critical parts of a system in the early phase of a product life cycle,

Increase test coverage from a security point of view.

• The ultimate goal of the TNT project was to build a uniform security testing and monitoring framework by applying testing and monitoring products, which are provided by Finnish manufacturers• The aim of the framework was to collect information about security level, observe security problems by testing and decrease effect of security vulnerabilities to critical parts of a system

1930/03/2011

19

Product testing over converging networks - CNL-Products

Project estimated the existing ICT product certification market size: US~1300M$ and EU~270M€(1)

Project designed a certification service consisting laboratory, live test network and production network testing for ICT products such as applications, network components and service systems.

During project a new certification service was planned that combined expertise, resources, and testing tools of participating organizations and companies.

Service focused beyond the current ICT certification programs that leave the most tests outside of their scope such as end-2-end performance, mobility, error resilience, privacy/security and interoperability of products.

A lab certification environment at the CNL (www.cnl.fi)

2030/03/2011

Crosslayer Solutions and Network Support for Broadband Wireless Access (CrossNet)

• CrossNet goal was to investigate testing requirements of LTE technology and combine existing expertise of radio access and networking technologies between the project partners• The concrete goal was to integrate partners‘ solutions as “CrossNet Laboratory” including state-of-the-art prototype environment for LTE testing and trials

Main results:• Wrap-around testing environment to assure that LTE eNb conforms basic functionalities of LTE specification,

• Environment to validate testing and monitoring systems future access technologies,

• Resources and strong expertise about LTE technology, testing processes and testing systems.

2130/03/2011

Easy Wireless 2 (EW-2)in EU CELTIC program

Target of the project: To enhance user experience of mobile users in heterogeneous networking environment.

Target of VTT: To assist industry in developing new QoS measurement solutions, and to find new ways in exploiting the measurement results to enhance networking performance.

Main technical results (VTT) QoS-guided vertical handover (mobility) prototype system, A renewed passive QoS measurement tool with novel features, A novel Regressive Access Control demonstration system.

2230/03/2011

2. Key results …

• Wireless access• 44 scientific publications (journal paper/PhD thesis/conference publication)

• 11 regulatory contributions

• 2 MSc degrees

• 4 invention reports/patent applications

• Seamless networking• 36 scientific (journal paper/PhD thesis/conference publication)

• 2 MSc degrees

• 1 one open source software

• Network support• 23 (jourbal paper/PhD thesis/conference publication)• 5 invention reports/patent appilications• 6 MSc degrees

2330/03/2011

3. Co-operation – main partners

Wireless access Seamless networking Network support

Finnishindustry andpublic organisations

Nokia, NSN, EB, Exfo (Nethawk), Tieto, ECE, Efore Finnish Defence Forces, Finnish Communications Regulatory Authority

NSN, Nokia, Ericsson, BaseN, TDC, Exfo (Nethawk), Secgo, TeliaSoneram CSC, Digita, Elisa, Finnet, Fortum, Maxisat, Sanoma Entertainment, Finnish Defence Forces, Ministry of traffic and communications, NESA

Nixu, Codenomicon, EB, Exfo (Nethawk), Nokia, NSN, Clarified Networks, Inspecta, BaseN Oulu Innovations

Finnishuniversities

Oulu (CWC), Aalto Helsinki, Aalto Oulu (CWC)

Foreignuniversities andinstitutes

Aalborg, Chalmers, Athens, Stockholm, Valencia, Poznan, Dresden, Aachen, Pisa, Budabest, Cardif CEA-LETI, Fraunhofer, TECNALIA, IMEC

Klagenfurt, Arcada Madrid, Carlos

2430/03/2011

4. Conclusions

• GIGA program was extremely important for VTT technology development. It made possible to

• update knowledge related to wireless technology and market development visions and

roadmaps

• develop and verify techologies needed by future wireless systems and products

• renew and increase of VTT’s technology competencies and IP/assets

• strengthen and reshape research co-operation networks

• increase understanding of industry and market future needs

2530/03/2011

Appendix: Contacts to project and result details• IMT-A/4G radiolink testbed (FRACTA & WINNER+): jussi.roivainen@vtt.fi, mika.rautio@vtt.fi

• Technologies for antenna array front ends (TAFE): pertti.jarvensivu@vtt.fi

• Cognitive and Opportunistic Wireless Communication Networks (COGNAC):

marja.matinmikko@vtt.fi

• Home Base Station: An Emerging Network Paradigm (HOMESNET): ilkka.harjula@vtt.fi

• Optimising Power Efficiency in Mobile Radio Networks (OPERA-Net): aarne.mammela@vtt.fi

• Algorithms for Broadband Infrastructure (ABI): ilkka.norros@vtt.fi

• Multi-access Experimentations in Real Converging Networks (MERCoNe): tiia.sutinen@vtt.fi

• Dependability evaluation methods for IP networks (IPLU-II): ilkka.norros@vtt.fi

• Scalable Video Coding impact on Networks (SCALNET): tiia.sutinen@vtt.fi

• Wireless Community Services for Mobile Citizens (WISEciti): jukka.makela@vtt.fi

• Security Testing and Monitoring (TNT): petri.jurmu@vtt.fi

• Product testing over converging networks - CNL-Products: marko.palola@vtt.fi

• Crosslayer Solutions and Network Support for Broadband Wireless Access (CrossNet):

petri.jurmu@vtt.fi

• Easy Wireless 2 (EW-2): jarmo.prokkola@vtt.fi

2630/03/2011

VTT creates business from technology