COFDM wireless kis tau tus mobmuaj cov ntawv thov dav dav hauv ntau qhov chaw, tshwj xeeb tshaj yog hauv kev siv tswv yim hauv kev tsheb thauj mus los ntse, kev kho mob ntse, lub nroog ntse, thiab lwm yam kev lag luam, qhov uas nws ua kom pom tseeb nws cov txiaj ntsig, kev ruaj ntseg, thiab kev ntseeg tau.
Nws qhov zoo xws li kev siv cov spectrum siab, muaj zog tiv thaiv kev cuam tshuam kev cuam tshuam ntau yam, cov ntaub ntawv ceev ceev thiab kev ruaj ntseg siab ua rau COFDM wireless kis tau tus mob muaj peev xwm loj hlob.
Nrog rau kev loj hlob sai ntawm science thiab technology,wireless kev sib txuas lus technologytau siv dav hauv ntau yam.Ntawm lawv, COFDM (Coded Orthogonal Frequency Division Multiplexing) wireless kis tau tus mob tau maj mam dhau los ua lub hnub qub thev naus laus zis hauv kev sib txuas lus wireless vim nws siv tau zoo spectrum thiab muaj peev xwm tiv thaiv kev cuam tshuam ntau yam.
Tsab ntawv xov xwm no yuav tshawb xyuas cov ntsiab lus, cov xwm txheej thiab cov txiaj ntsig ntawm COFDM wireless kis tau tus mob piv nrog rau lwm cov thev naus laus zis.
1. Txoj cai ntawm COFDM wireless kis tau tus mob
Lub COFDM wireless kis tau tus mob siv channel coding, teeb liab hloov kho thiab cov ntaub ntawv xa xov technologies kom paub txog kev xa cov duab cov ntaub ntawv.Ua ntej, channel coding compresses thiab codes cov duab cov ntaub ntawv kom txo tau cov ntaub ntawv xa mus.Tom qab ntawd, teeb liab modulation modulates cov ntaub ntawv encoded mus rau tus cab kuj nyob rau hauv lub teev zaus band kom paub spectrum hloov ntawm cov ntaub ntawv.Lub teeb liab modulated xa mus rau qhov kawg tau txais los ntawm cov ntaub ntawv xa mus kom tiav cov wireless kis ntawm cov ntaub ntawv duab.
2. Daim ntawv thov scenarios ntawm COFDM wireless kis tau tus mob
2.1.Intelligent tsheb thauj mus los
Nyob rau hauv lub tshav pob ntawm kev txawj ntse tsheb thauj mus los, COFDM wireless kis tau tus mob systems yuav siv tau nyob rau hauv lub tsheb saib xyuas, tsheb mus txog qhovtwg, tsheb teeb liab tswj, thiab lwm yam.
Piv txwv li, 100 cov ntaub ntawv yuav tsum tau hloov khoraukis tauhauv.Ua ntej hloov nws mus rau 200 khoom,.Thaum lub teeb liab tau txais, txawm tias muaj teeb meem nrog kev sib kis ntawm 100 khoom, cov ntaub ntawv raug tseem tuaj yeem demodulated.Nyob rau hauv luv luv, nws yog ntxiv redundancy ua ntej modulation los txhim kho kev ntseeg tau ntawm kev sib kis.Qhov no yog hu ua Internal Error Correction (FEC) hauv COFDM systems.Thiab kuvt yog ib qho tseem ceeb parameter ntawm COFDM system.
2.2.Kev kho mob ntse
Hauv kev saib xyuas kev kho mob ntse, COFDM wireless kis tau tus mob tuaj yeem paub txog kev ua haujlwm xws li telemedicine, wireless surgical live broadcast, thiab real-time kis ntawm cov duab kho mob, txhim kho kev ua tau zoo thiab kev pabcuam kho mob zoo.
2.3.Lub nroog ntse
Hauv kev lag luam ntawm lub nroog ntse, COFDM wireless kis tau tus mob tuaj yeem siv rau hauv nroog kev nyab xeeb, kev saib xyuas ib puag ncig, teeb pom kev ntse, thiab lwm yam los txhim kho qib ntse ntawm kev tswj xyuas nroog thiab txhim kho lub neej zoo ntawm cov pej xeem.
3.Qhov zoo ntawm COFDM wireless kis tau tus mob
Piv nroglwm yam kev sib txuas lus wireless, COFDM wireless kis tau tus mob muaj qhov zoo hauv qab no:
1. Kev siv cov spectrum siab
COFDM thev naus laus zis tuaj yeem siv tag nrho cov peev txheej bandwidth thiab txhim kho kev siv spectrum los ntawm kev nthuav tawm cov ntaub ntawv hla ntau lub subcarriers rau kev sib kis.
2. Muaj zog tiv thaiv kev cuam tshuam ntau yam
COFDM thev naus laus zis siv lub orthogonality ntawm orthogonal subcarriers kom muaj txiaj ntsig zoo sib cais cov cim ntawm ntau txoj hauv kev ntawm qhov kawg tau txais thiab txo qhov cuam tshuam ntawm ntau txoj kev cuam tshuam.
3. High-speed cov ntaub ntawv kis tau tus mob
Los ntawm kev siv cov thev naus laus zis kev txiav txim siab thiab kev coding algorithms, COFDM wireless kis tau tus mob tuaj yeem ua tiav cov ntaub ntawv xa mus ceev.
4. Kev ruaj ntseg siab
COFDM thev naus laus zis siv encryption algorithms los encrypt thiab xa cov ntaub ntawv, tiv thaiv kev ruaj ntseg ntawm cov ntaub ntawv xa mus.Lub COFDM wireless kis tau tus mob muaj dav daim ntawv thov kev cia siab nyob rau hauv ntau lub teb, tshwj xeeb tshaj yog nyob rau hauv lub tswv yim kev siv nyob rau hauv kev txawj ntse tsheb thauj mus los, ntse kho mob, ntse lub zos thiab lwm yam teb, qhov twg nws tag nrho qhia nws efficiency, stability thiab kev cia siab rau.Nws qhov zoo xws li kev siv cov spectrum siab, muaj zog los tiv thaiv kev cuam tshuam ntau yam, kev xa cov ntaub ntawv ceev ceev thiab kev ruaj ntseg siab ua rau COFDM wireless kis tau tus mob muaj peev xwm loj hlob.
Nrog rau kev txhim kho txuas ntxiv ntawm kev tshawb fawb thiab thev naus laus zis, peb muaj laj thawj ntseeg tias COFDM wireless kis tau tus mob yuav ua lub luag haujlwm tseem ceeb hauv kev sib txuas lus wireless yav tom ntej.
4. Cov lus xaus
Raws li COFDM thev naus laus zis,IWAVE Kev Sib Txuas Lustau tsim ib tug series ntawm wireless kis tau tus mob cov cuab yeej, uas kuj lug siv nyob rau hauv cov teb no.Cov cuab yeej tsim los ntawm peb lub tuam txhab feem ntau tsom raulub wireless kis tau tus mob mus ntevhigh-txhais yees duab, tshwj xeeb tshaj yog nyob rau hauv lub wireless kis tau tus mob ntawm drones, uas muab kev yooj yim zoo rau kev tiv thaiv ntawm ntug hiav txwv patrols, thaum muaj xwm ceev xwm txheej ceev, tsheb thauj mus los ntse, thiab lwm yam.
Post lub sij hawm: Sep-22-2023
