Itekhnoloji ye-MIMO isebenzisa ii-eriyali ezininzi ukuhambisa nokufumana imiqondiso kwindawo yonxibelelwano engenazingcingo.Ii-eriyali ezininzi zazo zombini ii-transmitters kunye nabamkeli ziphucula kakhulu ukusebenza konxibelelwano.Itekhnoloji ye-MIMO isetyenziswa ikakhulu kwiunxibelelwano oluphathwayoamasimi, le teknoloji inokuphucula kakhulu umthamo wenkqubo, uluhlu lwe-coverage, kunye ne-signal-to-noise ratio (SNR).
1.Inkcazelo ye-MIMO
Itekhnoloji ye-MIMO yoNxibelelwano olungenazingcingo ibizwa ngokuba yi-Multiple-Input Multiple-Out-put (i-Multiple-Input Multiple-Out-put) iteknoloji, kwaye ingabizwa ngokuba yi-Antenna yokuThumela ii-Antenna ezininzi (i-MTMRA, i-Multiple-Input Multiple Receive Antenna) ubuchwepheshe.
Umgaqo wayo osisiseko kukusebenzisa ii-eriyali ezininzi zothutho kunye nokufumana i-eriyali ekupheleni kokuhambisa kunye nokufumana isiphelo ngokulandelelana, kwaye ukwazi ukwahlula imiqondiso ethunyelwe okanye evela kwiindlela ezahlukeneyo zendawo.Isenokuphucula nomthamo wenkqubo, ukugqunywa kunye nomlinganiselo wesignali ukuya kwingxolo ngaphandle kokunyuswa kwe-bandwidth kunye nokuhambisa amandla, kunye nokuphucula umgangatho wothumelo lweempawu ezingenazingcingo.
Yahlukile kwiindlela zemveli zokusetyenzwa kwemiqondiso kuba ifunda iingxaki zokusetyenzwa komqondiso kuzo zombini ixesha kunye nemiba yendawo.Njengoko kubonisiwe kumzobo ongezantsi, leyo yinkqubo ye-MIMO ene-eriyali ze-Nt kunye ne-Nr kumthumeli kunye nomamkeli ngokulandelelanayo.
Inkqubo ye-MIMO elula
2.Ukuhlelwa kweMIMO
Ngokweemeko ezahlukeneyo kunye neemeko ezahlukeneyo ezingenazingcingo, ezi zilandelayo ziindlela ezine eziqhelekileyo ezisetyenziswa yi-MIMO: SISO, MISO kunye ne-SIMO.
3.Iikhonsepthi ezibalulekileyo kwi-MIMO
Zininzi iikhonsepthi ezibandakanyekayo kwi-MIMO, ezona zibaluleke kakhulu zezi zintathu zilandelayo: iyantlukwano, ukuphindaphinda kunye nokwenza i-beamforming.
Ukwahluka kunye nokuphindaphinda kubhekisa kwiindlela ezimbini zokusebenza zetekhnoloji ye-MIMO.Apha siza kukubonisa iikhonsepthi ezisisiseko kuqala.
● Ukwahluka: kubhekiselele ekuhanjisweni komqondiso ofanayo kwiindlela ezininzi zothumelo ezizimeleyo.Oko kukuthi, umqondiso ofanayo, amajelo azimeleyo.
● I-Multiplexing: ibhekiselele ekugqithiseni iimpawu ezininzi ezizimeleyo kwindlela enye yothumelo.Oko kukuthi, izibonakaliso ezahlukeneyo, iziteshi eziqhelekileyo.
Apha sisebenzisa itafile ukubonisa ngokufutshane ubudlelwane phakathi kwabo.
| Imo yokusebenza | Injongo | Iindlela | Iindlela |
| Ukwahluka | Phucula ukuthembeka | Nciphisa ukuphelelwa | ikhowudi yexesha lesithuba |
| Multiplexing | Phucula ukugqiba | Thatha ithuba lokuphelelwa | I-Spatial Multiplexing |
Okokugqibela, makhe sithethe ngokukhazimlisa.Apha siza kukunika kwakhona ingcamango esisiseko: bubuchwephesha bokwenza umqondiso osebenzisa i-sensor array ukuthumela kunye nokufumana izibonakaliso kwicala.Kukwenza isiginali ethunyelwe yi-eriyali iqondise ngakumbi, kukhethwa ukuba ikwazi ukukhonjwa ngokuchanekileyo kumsebenzisi ngaphandle kokuvuza kwamandla.
● Kwimeko yoku-1, inkqubo ye-eriyali ikhupha phantse umlinganiselo ofanayo wamandla kuwo onke amacala.Kungakhathaliseki ukuba umgama phakathi kwabasebenzisi abathathu kunye nesikhululo sesiseko, nangona umsebenzisi ngamnye unokufumana amandla omqondiso alinganayo, kusekho umlinganiselo omkhulu wesignali ehlakazwe kwindawo yamahhala, ebangela inkunkuma yamandla kwisikhululo sesiseko.
● Kwimeko yesi-2, ukusasazeka kwamandla e-eriyali kukwalathise ngokugqithisileyo, oko kukuthi, amandla makhulu kangangoko kwicala apho umsebenzisi akhoyo kwaye amandla aphantse asasazwe kwiindlela ezingenamsebenzi.Itekhnoloji ebumba imiqondiso ye-eriyali yinto esiyibiza ngokuba yi-beamforming.
4.Izinto eziluncedo zeMIMO
● Ukuphuculwa komthamo wamajelo
Iinkqubo ze-MIMO zinokunyusa umthamo wesiteshi phantsi kweemeko zomlinganiselo ophezulu we-signal-to-noise kwaye zingasetyenziswa phantsi kweemeko apho umthumeli akanako ukufumana ulwazi lwetshaneli.Isenokwandisa isantya sothumelo lolwazi ngaphandle kokwandisa i-bandwidth kunye namandla othumelo lwe-eriyali, ngaloo ndlela iphucula kakhulu ukusetyenziswa kwe-spectrum.
●Ukuthembeka kwetshaneli okuphuculweyo
Ukusebenzisa itekhnoloji yokuphindaphinda indawo ebonelelwa ngamajelo e-MIMO kunokuphucula kakhulu uzinzo lwenkqubo kunye nokunyusa izinga losulelo.
Ukuqukumbela
FDM-6680yi-SWaP ephantsi, i-2x2 yerediyo ye-MIMO enexabiso eliphantsi ebonelela ngoluhlu olude kwiindawo ezibanzi zokusebenza kunye nereyithi yedatha ye-100-120Mbps.Iinkcukacha ezithe vetshe nceda undwendweleIWAVEiwebhusayithi.
Ixesha lokuposa: Dec-18-2023
