LembagaIlmuPengetahuanIndonesiaIndonesianInstituteofSciences

http://lipi.go.id

Millimeter-WaveWirelessSystemsduringSevereWeatherConditionsinASEANRegionsY.N.Wijayanto,A.Kanno,T.Kawanishi,IndonesiaInstituteofSciences,IndonesiaNatl.Ins.InformationandCommunicationTech.,JapanWasedaUniversity,Japan

InvitationtojointlydevelopaproposalforASEAN-IVO

Microwave for 4G Mobile

Ericsson,MicrowaveenablesLTEinremoteareashttps://www.ericsson.com/en/networks/cases/microwave-enables-lte-in-remote-areas

•  Upto1–2Gbit/s•  Distance>10kmSuitableforbackhaullinkfor4GLTEPros.:•  ConservativetechnologiesCons.•  Largedish(heavyweight)•  Lowspeed

Key 5G Components

Millimeter-Wave Supporting for 5G Mobiles

D. Gentina, “Backhaul Challenges & Evolution Trends: THE Role of mmW,” ETSI ISG mWT meeting, Nov. 2017

Millimeter-Wave Equipment

NECCorp.•  E-band(71-76,81-86GHz)•  10Gbit/sbysingleantenna•  20Gbit/sbydualantennas

Antennadishsize:<30cmWeight:<6kgi.e.)6GHzFWS•  Dishsize:>2m•  Weight:>10kg

Application of Millimeter-Wave to ASEAN Region Millimeter-waveradioscanbestronglyaffectedbyweatherconditions.•  Rain(watervaporsanddrops)increasesattenuation.•  Strongwindinducesvibrationoftheantennas.

ASEANregion:•  Tropicalclimate•  Indochinapeninsula:Savannahclimatebymonsoon

Heavyrain(rainfall>100mm/h)Squall(windspeed>11m/s)Typhoon/cyclone

SevereWeatherCondition

On-Going ASEAN-IVO Project “R&Donshort-distancecommunicationandimagingforapplicationsinASEANregion(FY2016-2018)”PI:Prof.VoNguyenQuocBao,PTIT,VietnamRelatedresearchitems:•  EvaluationofmmWavecommunicationsystemsformetro-trainsystems(PTIT,NICT)•  EmpiricalstudyofmicrowaveFWSinsevereweatherconditions(PT.TelkomIndonesia,LIPI)•  StudyonElectro-OpticDevicesformillimeter-waveapplications(LIPI,NICT)

Results: 90GHz field trial in PTIT HCMC, Vietnam

406080

0,1 1 10 100Path

loss

(d

B)

Distance (m)

Deduction:Outdoorandlong-term(>amonth)evaluationsaredemanded.

Empirical study of microwave propagation •  Indonesiahasatropicalclimate.Therearetwoseasons.ThedryseasonwithwindsblowingfromtheAustraliaContinent,lastsfromMarchtoAugustandthewetseasoninfluencedbywindsfromtheAsianContinentandthePacificOceanlastsfromSeptembertoMarchwiththeheaviestrainfallusuallyfromNovembertoFebruary.•  Averageannualprecipitationvariesbyarea.Theaverageannualprecipitation(mm/year)forthemajorislandsispresentedbelow：•  Sumatra:2600•  Java:2600•  NusaTenggara:1500•  Kalimantan:2800•  Sulawesi:2100•  Maluku:2200•  Papua:3200•  Total:2700

Electro-Optic Devices for Millimeter-Wave Application

Atmospheric Attenuation

0,1

1

10

100

0 50 100 150 200 250 300

Atm

osph

eric

atte

nuat

ion

(dB

/km

)

Frequency (GHz)

TheFederalCommunicationsCommission(FCC)ruledthatspectrumat71to76GHz,81to86GHzand92to95GHzwas

availableforhigh-densityfixedwirelessservices

Rain Attenuation

Source:E-bandcommunicationshttps://www.e-band.com/index.php?id=86

Rainfallrateexceeded>0.01%

Rec.ITU-RP.837-7:Characteristicsofprecipitationforpropagationmodelling

Rainfallaffectthemillimeter-wavepropagationASEANRegionshaveheavyrainfallrate

Strong Wind Condition Windinducesvibrationofpolesandantennas=>Linkgaindegradation

Fromon-goingstandardizationdocuments:APT/AWG-24TMP-02inTG-FWS

Research Plan •  Experimentalevaluationofmillimeter-wavetransmissioninthefield•  Round-robintestinASEANregion(Indonesia,Malaysia,Thailand,Vietnam,andsoon•  Applicationstudyforhigh-speedinternetconnectionandbackendnetworkforhigh-precisionradarsystem.•  SupportingadocumentforstandardizationinAWG,APT,ITUmeeting

Possiblecollaborators:•  Millimeter-Waveequipmentvendor:NECJapan,HitachiKokusaiElectricJapan

•  Researchinstitute:LIPI,UTMMalaysia,MieUniv.Japan,Thailand,Vietnam,TelkomIndonesia,LAPANIndonesia

Collaborator Candidate • Millimeter-Waveequipmentvendor:•  NECJapan•  HitachiKokusaiElectricJapan

• Researchinstitute:•  LIPIIndonesia•  NICTJapan•  UTMMalaysia•  MieUniv.Japan•  CUThailand•  PTITVietnam•  PTTelkomIndonesia•  LAPANIndonesia