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
