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Wireless Software and Hardware platforms for Flexible and Unified radio and network controL

ProjectDeliverableD8.1SupportofThirdPartyexperimentsofYear2

Contractualdateofdelivery: 31-12-2016

Actualdateofdelivery: 23-12-2016

Beneficiaries: IMEC,TCD,CNIT,TUB

Leadbeneficiary: IMEC

Authors: SpiliosGiannoulis(IMEC),PeterRuckebusch(IMEC),PieterBecue(IMEC),IngridMoerman(IMEC),IleniaTinnirello(CNIT),AnatolijZubow(TUB),AnatolijZubow(TUB),PiotrGawłowicz(TUB),DiarmuidCollins(TCD)

Reviewers: PierluigiGallo(CNIT)

Workpackage: WP8–WirelessInnovationExperiments

Estimatedpersonmonths: 4.5

Nature: R

Disseminationlevel: PU

Version: 1.0

Abstract:This deliverable reports on the nature and the volume of the support being given to open callparticipantsduringthefirst2yearsoftheproject.Italsobrieflypresentsthefocusandscopeoftheexperiments in order to present clearlywhy the given supportwas important for the third partyexperimenters.

Keywords:WirelessExperiments,OpenCalls,support

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Executive Summary ThisdeliverablesummarizestheactionstakenbytheWiSHFULconsortiuminordertosupportthirdparty experimentswithin theOpen Calls context.SMEs, research institutes and universities haveused the WiSHFUL offered tools and framework to conduct highly complex and beyond thestandards experiments in order to acquire insights regarding new products, algorithms orarchitectures forwirelessnetworks.Patronswereselected foreachproposal toguideandmanagethe experimenter while also acting as a communication point between the consortium and theexperimenters.Thefocusofthisdocumentistoreportonthesupportgivenfromtheconsortiumpartners to experimenters and to provide the overall picture of the Open Call overhead to theconsortium as far as support is concerned. Support given was spread across every stage of theexperimentsfrominitialcontactwiththetestbedsandthetoolsprovideduntilthepreparationandpresentationofresultsduringtheOCreviewmeeting.Thenatureofthesupportrangesfromtestbedaccess and use support, WiSHFUL framework and UPIs related support, extension of WiSHFULframework and UPIs according to requirements from experimenters up to tutorial and howto’spreparation upon request. The time investment that consortiummembers spent for tutoring andsupportactivitiesisalsodetailedquantitativelybythemeanoftimetables.

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List of Acronyms and Abbreviations Deviceundertest DUT

OpenCall OC

ORBITmeasurementsframework OMF

ORBITmeasurementslibrary OML

PowerSpectralDensity PSD

QualityofExperience QoE

RadioEnvironmentMap REM

RadioResourceManagement RRM

SoftwareDefinedNetworking SDN

UnifiedProgrammingInterface UPI

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Table of contents

1 Introduction .......................................................................................................... 5

2 OC1 experiments presentation and support given ........................................... 62.1Wi-FiDense-Allbesmart.....................................................................................................6

2.1.1 Shortdescriptionoftheexperiment.............................................................................................62.1.2 Supportgiventotheexperimenters.............................................................................................6

2.2AGILE–GRIDNETSA............................................................................................................72.2.1 Shortdescriptionoftheexperiment.............................................................................................72.2.2 Supportgiventotheexperimenters.............................................................................................8

2.3QUEST–STREAMOWL.........................................................................................................82.3.1 Shortdescriptionoftheexperiment.............................................................................................82.3.2 Supportgiventotheexperimenters.............................................................................................9

2.4SENSEFUL–I2CAT...............................................................................................................92.4.1 Shortdescriptionoftheexperiment.............................................................................................92.4.2 Supportgiventotheexperimenters...........................................................................................10

3 Conclusions ........................................................................................................ 11

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1 IntroductionExperimentationusingFed4FIRE testbedsand their related software tools iseasier than settingupandmaintainingproprietarytestbedsforexperimentallyvalidatingideasandproductenhancements.However,theexperimenterisrequiredtohaveknowledgeofseveraltoolsandsoftwareplatformstohandle hardware reservations, experiment setup and execution as well asmeasurement handlingandstoring.TheWiSHFULframeworkaddsalayerofcomplexitytotheexperimentsandtheuseofsophisticatedandcomplexsoftwareplatformsmayappeardifficultforanewcomer intheworldoffederatedtestbeds.Tofillthisgap,allconsortiummemberswereavailabletooffertheirsupporttoexperimenters, making it easier for them to grasp at once all the notions and use correctly theoffered software and hardware platforms. In this document the support given by the WiSHFULconsortium is reported and specifically for the Open Call 1 experiments that have been selected,whichwere:

• WiFi-Dense (Experimental assessment of WiFi coordination strategies in dense wirelessscenarios)conductedbyAllbesmart(Portugal)

• Agile(EnablingAgileSpectrumAdaptationinCommercialWLANDeployments)conductedbyGridnetSA(Greece)

• Quest (Quality-of-Experience of video streaming in wireless network) conducted byStreamOwl(Greece)

• Senseful (SDN driven Joint Access Backhaul coordination for next generation denseWi-FiSmallCellnetworksviaWiSHFULAPIs)conductedbyI2CAT(Spain)

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2 OC1experimentspresentationandsupportgivenThe experiments presented in this document are the outcome ofOpen Call 1. These experimentshavebeenconcludedby the timeofwriting thisdeliverable,whereasOpenCall2experimentsarestillunderwayandthusthesupportgiventothemwillbereportedinyear3aftertheircompletion.TheAUTOKEYexperimenthadadelayedstartbecauseofmanagerialreasons,soitstimeplanisnolongeralignedwiththerestoftheOC1proposals.Asaconsequenceitisnotincludedinthisreport,sinceitsexperimentalactivitiesarenotyetconcluded.WefurthernotethattheresultsoftheOpenCall1experimentsarenotpublic,andhencewecanonlyreporttheinformationthatcanbemadepubic.

2.1 Wi-FiDense-Allbesmart

2.1.1 ShortdescriptionoftheexperimentThe rapidly increasing popularity of WiFi has created unprecedented levels of congestion in theunlicensedfrequencybands,especiallyindenselypopulatedurbanareas.Themainobjectiveofthisexperiment is toassess thebenefitsofaRRMapproach indenseWiFinetworks for2.4GHzand5GHz bands that make use of realistic Radio Environment Maps. The main challenge of thisexperiment is to assess thebenefit of a coordinatemanagementof radio resources in denseWiFiindoorandoutdoorscenarios.

The generic setup of the experiment is based on the WiSHFUL software architecture (blue andorangeblocks)andusestheUPIN,RandUPIHc interfaces.TheGlobalControlProgramisthepieceofsoftware that implements the RRM algorithm/strategy that adapts theWiFi devices based on thelocalobservedREM,whichisbuiltbasedonthespectrumsensors.

Figure1.WiFi-Denseexperimentarchitecturepresentation

2.1.2 SupportgiventotheexperimentersIn the following table the support given to this experiment is presented in detail. This tabularapproachwillbeusedthroughoutthedocumentinordertopresentuniformlythesupportgiventoexperimenters. Tables include the description of supporting activities and the responsible partnerthatprovidedthem.

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Table1-TimesheetofthesupportdedicatedtotheWiFiDenseproposal

Partner Descriptionofsupport DedicatedTime[hour]

IMEC preparationoftests 22

IMEC supportforscript 12

IMEC implementationoftestsscripts 18

IMEC updateOMF-OMLtutorial 10

IMEC generalUPIusagesupport 12

IMEC addmissingUPIfunctionalities 34

IMEC addhostapd_clifunctionalitytoUPIs 4

IMEC portabletestbedsupportonsiteinAllbesmart 32

TUB Wi-FiUPIimplementationsupport 10

TOTAL 154

2.2 AGILE–GRIDNETSA

2.2.1 ShortdescriptionoftheexperimentThe goal of this experiment is to conduct a systematic evaluation of a spectrum adaptive 802.11basedsystem(AGILE)underavastvarietyofexperimentalconfigurations,inordertocharacterizeitsability to improve spectrum efficiency and network performance of 802.11 links under spectrumcongestionandinterferenceconditions.

Themainchallengesofdeployingtheexperimentinclude:

• Increasedheterogeneityandwiderangeofrequiredhardwareplatforms• Complexity in establishing wireless links with specific channel conditions (topologies, signal

strengths,etc.)• Difficulty in configuring multiple complex experimental scenarios including heterogeneous

devicesthatneedtobecentrallymanaged

TheAGILEsystemwasdeployedandtestedtocharacterizeitsabilitytoimprovespectrumefficiencyand network performance of 802.11 links under varying spectrum congestion and interferenceconditions,causedbyawiderangeofinterferencesources.

Figure2.AGILEexperimentsetup

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2.2.2 SupportgiventotheexperimentersIn the following table the support given to this experiment is presented in detail, indicating thesupportivepartner,thesupportiveactivityandthetimespent.

Table2-TimesheetofthesupportdedicatedtotheAGILEproposal

Partner Descriptionofsupport DedicatedTime[hour]

IMEC conferencecallforWiSHFULframeworksupport 4

IMEC IEEE802.15.4bridgesupport 12

IMEC SupportforexamplewithIEEE802.15.4nodes 6

IMEC USRPscriptscreationtoimitateaMicrowave 14

IMEC generalUPIusagesupport 14

TOTAL 50

2.3 QUEST–STREAMOWL

2.3.1 ShortdescriptionoftheexperimentThe QUEST experiment spreads across a broad range of aspects including multimediacommunication, video transmission, network architecture and control,Wi-Fi networks, andQoE invideo streaming services. This multidisciplinary approach is motivated by the adopted cross-layeroptimization approach, which performs optimizations of the network functions and resourceallocationbasedontheoverallnetworktopology,thenetworkconditionsofindividualusers,andtheindividual QoE requirements of the specific application at the end-user. Thus, the experimentinvolvedaspectsboth at thenetwork layer (i.e. routing, packet forwarding) andat the applicationlayer (i.e. the DASH video client), while taking into account the special characteristics of wirelessnetworks(e.g.linkfailures,variablethroughput,etc.).

Theexperiment topology isdepicted inFigure3: theDevicesUnderTest, runningLinuxOS,hostavideo client (e.g VLC player, mplayer, or an HTML5 player embedded in a webpage) which isscheduled to consume a video stream originating from YouTube. The experiment managementserver is used toemulatedifferentnetwork conditions,while theUnifiedProgramming Interface -Network(UPI_N)andtheUnifiedProgrammingInterface-Global(UPI_G)oftheWiSHFULsoftwarearchitecture are configured to optimize video QoE by controlling the network protocol stack. Asubsetof thevideosequences thatarestreamed to theDUTsare furtherused ina subjective testwithrealuserstoinvestigatetheimpactontheactualsubjectiveuseropinionandtraintheobjectivemodelsforaccuratepredictionbasedonobjectiveparametersofthevideostream.

Figure3.Questexperimenttopologysetup

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2.3.2 SupportgiventotheexperimentersIn the following table the support given to this experiment is presented according to 2.1.1.bpresentedstructure.

Table3-TimesheetofthesupportdedicatedtotheWiFiDenseproposal

Partner Descriptionofsupport DedicatedTime[hour]

IMEC ConferencecallforWiSHFULframeworksupport 3

IMEC UPIsusagesupport 4

IMEC wilab-ttestbedsupport 5

TOTAL 12

2.4 SENSEFUL–I2CAT

2.4.1 ShortdescriptionoftheexperimentDense Small Cell networks are considered the most effective way to cope with the exponentialincrease inmobiletrafficdemandforecastedfortheupcomingyears.However,novelarchitecturesare required to enable cost-efficient deployments of very dense outdoor Small Cell networks,complementingthecoveragelayerprovidedbymacro-cells.Inthisregard,twoimportantchallengesneedtobesolvedtomakethisvisionareality:i)increasedtrafficdynamics,whicharetranslatedintomorefrequenthandovers,andii)cost-efficientdeploymentoflargenumbersofSmallCells.

SENSEFUL aimed to evaluate an SDN-based architecture addressing the two problems highlightedabove: SDN as the key technology to promote adaptability to a varying environment and provideefficientmobilitysolutionsinthedenseaccesslayer,andii)novelwirelessbackhaulingtechnologieswheretraditionalwiredconnectivitydoesnotmeetcost/efficiencyrestrictions.

Using the same radio resources for access and backhaul, on the other hand, introduces a newchallenge that is tackled in SENSEFUL by introducing a cooperative management between bothsegmentsofthenetwork.ThisarchitecturefeaturesseparateSDNcontrollersforthewirelessaccessandthewirelessbackhaul,whicharecoordinatedthroughanovelinterfacedefinedthroughouttheproject.TheproposedarchitecturebenefitsfromthehierarchicalWiSHFULcontrolarchitectureandisbasedontheuseofvariousradio,networkandglobalWiSHFULUPIs.

Thus, the set of experiments runwithin SENSEFULwere designed to assess the potential of sucharchitecture, highlighting the benefits of the coordinated management of access and backhaulnetworks in a Wi-Fi-based small cell testbed. More precisely, the new capabilities of this jointaccess/backhaulcontrolthathavebeenevaluatedarethefollowing:

• Backhaul-awareaccessnetworkcontrol• Access/Backhaulresourcemanagement

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Figure4.SENSEFULexperimentarchitecture

2.4.2 SupportgiventotheexperimentersIn the following table thesupportgiven to thisexperiment ispresentedaccording to thestructuredefinedin2.1.1.b.

Table4-TimesheetofthesupportdedicatedtotheWiFiDenseproposal

Partner Descriptionofsupport DedicatedTime[hour]

TUB portingsupport 20

TUB testbedspecificsupport 5

TUB generalsupport 13

TUB introductiontoWiSHFUL 10

TOTAL 48

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3 ConclusionsIn thisdeliverablethesupportgiventoOpenCall1experimentswaspresented.Thesupportgivenwasspreadacrossallstagesofawirelessexperimentandwasgivenmostlyfromthepatronoftheexperiment.Thiswasnotimposed,butitwasresultedduetocarefulselectionofpartnerstoactaspatronsforspecificexperimentsbasedontheirexpertiseandontheselectedtestbedtobeusedintheexperiment. In thatway, theoverhead to identify the right supportingpartnerwasminimized.The support given for solving specific issues, and theestablishmentof communicationpointswiththeConsortiumwereeffectiveanddemonstratedthat,despiteoftheheterogeneityoffunctionalitiesandhardwareplatformsincludedintheWiSHFULtestbed,theexperimenterseasilyfamiliarizedwiththeWiSHFULcontrolframework,takingadvantageofthesimplificationandunificationoftheofferedprogrammingmodels.