De Valck, Peter

Liu, Wei

Moerman, Ingrid

Ghent University Academic Bibliography

MERMAT 2013 - May 7, 2013 - Dublin, Irelandfile:///C|/Users/dstevens/Documents/_D_Drive/dstevens/Publicaties%20INTEC/5651_i.htm[8/30/2013 11:35:37 AM]MERMAT 2013Topicsof InterestWorkshopProgramCamera-ReadySubmissionOrganizingCommitteeProgramCommitteeLocationand Venue2nd International Workshop onMeasurement-based ExperimentalResearch, Methodology and ToolsMay 7th, 2013 - Dublin, IrelandAbout the WorkshopMeasurement and associated tools play nowadays a fundamental role in iterative experimental research.This role includes the evaluation of protocols, systems and their associated components, etc. functionalityand performance by means of reliable and verifiable tools following a systematic methodology. It is alsoanticipated that distributed measurement and associated tools will also become prominent in the contextof operation and management of autonomic information communication infrastructures, at the equipmentand monitoring level but also in support of higher-level control functionality such as on-line data analysismining and diagnostic.This workshop, co-located with Future Internet Week (FI Week) 2013, aims at gathering all researchprojects and initiatives under the measurement-based experimental research, methodology and toolsthematic. Participants are invited to present their current research and developments on measurementsand associated tools in the context of experimental research including simulation, emulation, prototypes,etc.Important DatesTopics of Interest Workshop topics include (but are not limited to):Sponsors  Submission of papers:Extended to April 12th, 2013Notification of acceptance:April 22nd, 2013Camera-ready submission:April 29, 2013MERMAT 2013 - May 7, 2013 - Dublin, Irelandfile:///C|/Users/dstevens/Documents/_D_Drive/dstevens/Publicaties%20INTEC/5651_i.htm[8/30/2013 11:35:37 AM]10:3010:4511:1511:1511:4012:0512:3013:4513:4514:20Measurement techniques and tools specialized for traffic spatio-temporal properties, network androuting topology/properties, protocol performance, wireless/wireline technologies, etc. inexperimental settingsMethods and techniques to generate repeatable, reproducible, and reliable measurements inexperimental homogeneous/heterogeneous settingsMethods, techniques, and tools to reproduce representative experimental conditionsMeasurement verification and comparison methods and techniquesExtrapolation and interpolation techniquesSampling techniques, calibration / timing and synchronization techniques, etc.Large-scale simulation and emulation distributed measurement methodology, tools, etc.Distributed measurement techniques and tools for test-beds/experimental facilities including small tolarge-scale test-beds, federated test-beds, homogeneous/ heterogeneous test-beds, etc.Advances on distributed measurement: agents, platforms and on-line analysisData-mining, interpretation, knowledge acquisition from experimental measurementsModeling/analyzing experimental data by time series (frequency-domain/time-domain methods,parametric and non-parametric methods, univariate/multivariate) for exploratory analysis, predictionand quantitative forecasting, regression analysis, etc.Multivariate experimental data analysis, e.g., analysis of variance, regression analysis, principalcomponent analysis and variants, discriminant analysis and variants, etc.Estimation methods and techniques using experimental dataInterval estimation and statistical hypothesis tests using sample of experimental dataWorkshop Final ProgramWorkshop Leaflet (including abstracts)Welcome and IntroductionCoffee breakSession 1Invited Speaker 1 — Ingrid Moerman (Ghent University - iMinds, Department of InformationTechnology (INTEC), Belgium)Title: “Wireless experimentation: An experimenter’s viewpoint”   [Presentation Slides PPTX]Investigation of One-Way Delay Variation in Substrate and Slice Measurements over aEuropean-wide Future Internet Platform  [Presentation Slides PDF]Susanne Naegele-Jackson, Peter KaufmannThe EVARILOS Benchmarking Handbook: Evaluation of RF-based Indoor LocalizationSolutions  [Presentation Slides PPTX]Tom Van Haute, Eli De Poorter, Jen Rossey, Ingrid Moerman, Vlado Handziski, ArashBehboodi, Filip Lemic, Adam Wolisz, Niklas Wiström3, Thiemo Voigt, Pieter Crombez, PietVerhoeve, Jose Javier de las HerasLunch breakSession 2A Framework for Modeling and Execution of Infrastructure ContentionExperiments  [Presentation Slides PPTX]Carmelo Ragusa, Philip Robinson and Sergej SvorobejNetwork design for the LOG-a-TEC outdoor testbed  [Presentation Slides PPTX]Tomaz Solc, Zoltan PadrahMERMAT 2013 - May 7, 2013 - Dublin, Irelandfile:///C|/Users/dstevens/Documents/_D_Drive/dstevens/Publicaties%20INTEC/5651_i.htm[8/30/2013 11:35:37 AM]15:0015:3011:1515:5516:3017:00Coffee breakSession 3Invited Speaker 2 — Dimitri Papadimitriou (Alcatel-Lucent Bell Labs, Belgium)Title: “Program verification in software-based experimental facilities”   [Presentation SlidesPPTX]Reducing Power Consumption in Body-centric Zigbee Communication Links by means ofWearable Textile Antennas   [Presentation Slides PPTX]P. Vanveerdeghem, B. Jooris, P. Becue, P. Van Torre, H. Rogier, I. Moerman, and J.KnockaertPresentation of the “Measurement Tools and Dataset repository” initiative.   [PresentationSlides PPTX]Please visit www.mtoolsanddata.org for more information.End of MERMATAccepted as a poster:A Network Traffic Classification based on Coupled Hidden Markov Models   [PresentationSlides PPTX] Fei Zhang, Wenjun WuCamera-Ready SubmissionAuthors should only submit original work that has not been published before and is not under submission toany other venue.All submissions must be written in English with a minimum of 4 and a maximum of 6 double-column pages(10 point font) including references and figures. All papers must be formatted according to the IEEEmanuscript template for conference proceedings:http://www.ieee.org/conferences_events/conferences/publishing/templates.htmlAt least one author must register to FIA Dublin 2013. The minimum registration is €50 for the Pre FIAWorkshop Day Tuesday May 7th event, which includes lunch, teas/coffees and delegate gift bag.STEP 1: Enter a valid e-mail addressTo initiate the submission of the camera-ready version of an accepted paper, please enter a valid e-mailaddress: (this will be the contact address for the submission)MERMAT 2013 - May 7, 2013 - Dublin, Irelandfile:///C|/Users/dstevens/Documents/_D_Drive/dstevens/Publicaties%20INTEC/5651_i.htm[8/30/2013 11:35:37 AM]General ChairDimitri Papadimitriou, Alcatel-Lucent Bell LabsTreasurer/Financial ChairDavide Careglio, Univ. Politècnica de Catalunya, SpainPublication ChairLluís Fàbrega, Univ. of Girona, SpainTechnical Program Committee Co-ChairsPere Vilà, Univ. of Girona, SpainIngrid Moerman, Ghent Univ., BelgiumWebmasterAntonio Bueno, Univ. of Girona, SpainOrganizing CommitteeProgram CommitteePere Barlet, Universitat Politècnica deCatalunya, SpainPierre Borgnat, Phys-ENS Lyon, FrancePeriklis Chatzimisios, Alexander TechnologicalEducational Institute of Thessaloniki, GreecePiet Demeester, Ghent University, BelgiumPanagiotis Demestichas, University of Piraeus, GreeceStefano Giordano, Università di Pisa, ItalyLuc Hogie, CNRS INRIA Sophia-Antipolis, FranceScott Kirkpatrick, The Hebrew University ofJerusalem, IsraelPhilippe Owezarski, LAAS-CNRS Toulouse, FranceCharalambos Skianis, University of the Aegean, Mytilene, GreeceFabien Tarissan, UPMC-CNRS, Paris, FranceSandrine Vaton, Telecom Bretagne, Brest, FranceLocation and VenueThe Helix Center is located on Dublin City University (DCU) Campus in Glasnevin, North Dublin.Further details on the Helix location and venue, as well as a transportation guide, can be found in thevenue website.CREWCREWThe research leading to these results has received funding from the European Union's  Seventh Framework Programme (FP7/2007-2013) under grant agreement n°258301 (CREW project). Wireless experimentation  An experimenter’s viewpoint Ingrid Moerman, Wei Liu & Peter De Valck -  iMinds CREWOutline  ■An experimenter’s viewpoint ● Case: the CREW platform ● Case: spectrum sensing  ■Reducing the learning threshold for experimentation ● Approach: common cognitive radio language ● CREW-GENI collaboration   1 CREWCREW – Why? The Internet plays a crucial role in interconnecting technologies and services…  … resulting in increasing complexity ● more users, more types of users ● more devices, more types of devices (Internet of Things) ● increasing wireless traffic demand!  BUT… radio spectrum is limited! ● big differences depending on the frequency band – white spaces in licensed bands versus overcrowded unlicensed bands  2   CREWCREW – Why? ■ Solution: cognitive radio – cognitive networking  ● Use the available (spectrum) resources as efficiently as possible, by adapting the radios (transmitters and receivers) to the wireless environment and the user needs 3 spectrum  sensing cognitive radio cognitive networking spectrum  sharing regulatory and policy based information CREWCREW – Why? 4 compare the performance of multiple solutions theory vs. reality: impact of real-life deployment showcase for industry, regulators and government reduce the time to market understand how people experience and use technology … experimentally-supported research is crucial for validation of new CR/CN concepts From novel idea to commercial use … CREWIP CREW ■Cognitive Radio Experimentation World ● FP7 call 5 (FIRE - Future Internet Research and Experimentation Initiative) ● Project started October 2010 ● 8 core partners ● 3+6 open call partners – UDUR (UK) – TUIL (DE) – TECNALIA (ES) – IT (PT) – CMSF (PT) – CNIT (IT) – WINGS (GR) – UTH (GR) – NICTA (AU)  5 OC1 OC2 CREWIP CREW: Target 6 ■establish an open federated test platform, facilitating experimentally-driven research on  ● advanced spectrum sensing ● cognitive radio (CR) ● cognitive networking (CN) ● spectrum sharing  in licensed and unlicensed bands SDR CREWCREW federated platform 7 heterogeneous ISM @ Ghent (iMinds) TV-bands @ Dublin (TCD) LTE-advanced @ Dresden (TUD) wireless sensor @ Berlin (TUB) ISM/TVWS outdoor @ Ljubljana (JSI) IMEC sensing agent IRIS SW radio TCS multi-antenna LTE detection WinnF Transceiver Facility (API) CREWThe CREW offer ■ Open access to 5 different testbed islands and advanced cognitive components ● different wireless technologies ● different spectrum bands ● mature testbeds ● methodologies and tools for           experimentation ● reproducible test conditions ● expertise from PHY layer   up to application layer   ■ Portal with detailed information and guidelines on access and use of the facilities (www.crew-project.eu)  ■ Technical support & assistance to your experiments ● methodologies for experimentation ● upcoming open call 3 for free and guaranteed support to your experiment   8 CREWThe experimenter’s view ■At first sight ● CREW facilities are exciting… ● … offering many advanced cognitive radio (CR) components  ■BUT… ● Which testbed and CR components are most suited for a specific experiment? ● CR components and testbeds are very heterogeneous! ● Much detailed technical information must be absorbed before starting experiment! ● It takes time to familiarize with facilities and CR components… ● …  ➜ High learning threshold for experimentation!   9 CREWCREW – advanced CR components 10 CREWSpectrum sensing - some theory ■ Spectrum sensing parameters 11 Parameter Description frequency span spectrum monitoring range frequency bin range of frequencies over which spectral amplitude is measured resolution bandwidth (df) distance between adjacent frequency bins sampling time time used by RF front-end to collect samples from the air processing time time to process samples in case sampling and processing happens sequentially extra time to process samples in case sampling and processing happens in parallel sweep time (dt) the sum of sampling time and processing time  PSD F[Hz] span df bin PSD F[Hz] dt T[s] CREWSpectrum sensing - some more theory ■ Swept mode versus Fast Fourier Transform (FFT) mode 12 swept mode = narrowband radio frequency (RF) center frequency is incremented rapidly in small steps  FFT= wideband transformation from time domain to frequency domain is achieved by FFT (frequency span depends on sample rate) CREWProblems with spectrum sensing ■ Swept mode ● Missed signals during sweeping 13 CREWProblems with spectrum sensing ■ FFT mode ● First acquisition of samples, then processing ● Missed signals in case of non-continuous processing 14 processing time < acquisition time processing time CREWProblems with spectrum sensing ■ FFT mode ● First acquisition of samples, then processing ● Missed signals in case of non-continuous processing 15 processing time < acquisition time processing time CREWSensing efficiency ■ FFT mode ● Sensing efficiency = ratio between sampling time and sweeping time ● Need for fast processing! 16 Sample Processing  Sample Processing time Sweep time  processing time   CREWiMinds solution for spectrum sensing 17 ■ USRP + server ● Continuous FFT mode ● Multi-threading → 100% spectrum efficiency – 1 thread for sampling – 1 thread for processing (several parallel sub threads) ● Available for CREW experimenters! CREW■ Performance ● Accurate Wi-Fi and Bluetooth detection iMinds solution for spectrum sensing 18 1 ms beacons 1% channel occupation frequency hopping  every 625 μs This is an attractive solution, but complex and difficult to use! CREWCREW – GENI collaboration ■ Motivation ● Many heterogeneous CR devices available (USRP, WARP, imec SA…)  ● Learning threshold for setting up end executing a CR experiment is quite high ■ Goal ● Reduce the learning threshold for wireless experimentation involving cognitive radios by introducing a common CR language CREW19 CREWExample: experimentation @ iMinds reservation, configuration, experiment definition       specific knowledge required about the testbed and devices cognitive radio experiment single testbed       single device 20 CREWExample: experimentation @ iMinds ■USRP sensing solution on the iMinds testlab ● Reservation  21 CREWExample: experimentation @ iMinds ■USRP sensing solution @ iMinds ● Configuration – Example: definition of spectrum sensing application  22 number of bins resolution bandwidth (df) center frequency of bin CREWExample: experimentation @ iMinds ■USRP sensing solution @ iMinds ● Experiment definition – Example: application running on specific node  23 12 (Wi-Fi) channels add USRP application on server 1 CREWExperimentation at different CREW testbeds Cognitive radio experiment Multiple testbeds       Multiple devices … … To run similar experiments in different wireless environments using different CR hardware, a researcher needs specific knowledge for each testbed and type of device (reservation, configuration, experiment definition)  ➔ duplication of work! 24 CREW■USRP sensing solution on the iMinds testlab ● CREW – GENI approach  Example: experimentation @ iMinds Reservation Configuration Experiment definition 25 technical experiment description (testbed & component specific) ontology-based experiment description (same for all testbeds & components) CREWdevice specific ontology translation Experimenter ontology-based experiment description technical experiment description  (e.g. OEDL) Configuration API     Sensing API Experiment storage CREW- GENI GREW-GENI architecture 26 CREWCREW-GENI collaboration cognitive radio experiment Multiple testbeds       Multiple devices … … ontology-based experiment description + configuration API + sensing API Conclusion: automatic translation allows researchers to run experiments on a wide range of testbeds and devices without extra effort 27 CREWQ & A Contact: Ingrid.moerman@intec.ugent.be www.crew-project.eu 28 The research leading to these results has received funding from the European Union's Seventh Framework Programme (FP7/2007-2013) under grant agreement n°258301 (CREW project). Open call 3 Visit the CREW booth for more info  

Wireless experimentation: an experimenter's viewpoint

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Wireless experimentation: an experimenter's viewpoint

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Ghent University Academic Bibliography