Kusukela ngo-802.11n, ubuchwepheshe be-MIMO buye basetshenziswa kule mithetho yomthetho futhi buye bathuthukisa kakhulu izinga lokudlulisela okungenantambo.Ngokuqondile, indlela yokufeza ukuthuthukiswa kobuchwepheshe obuphezulu.Manje ake sibhekisise ubuchwepheshe be-MIMO.
Ngokuqhubeka kobuchwepheshe bokuxhumana okungenantambo, izivumelwano eziningi ziyazalwa.Ukuze kuthuthukiswe izinga lokudluliswa kolwazi kanye nokusetshenziswa komkhawulokudonsa, kusetshenziswa ubuchwepheshe obunama-antenna amaningi.Lokhu kubizwa ngeMimo.Ngokombono wefomula ka-Shannon, ubuchwepheshe be-Mimo bungasheshisa izinga lokuthunyelwa kwedatha, okubuye kuthuthukise isilinganiso sesignali-kuya-nomsindo.
Ngomqondo obanzi, i-MIMO ibhekisela kumodi yokuphindaphinda kokuhlukaniswa kwesikhala esekela ukudluliswa kwedatha ngezingqimba eziningi ngesikhathi esisodwa.Kodwa-ke, kwesinye isikhathi umqondo we-MIMO uhlukile ngenxa yokuqukethwe.Isibonelo, uma sikhuluma nge-5G, sikhuluma nge-MIMO enkulu, okuyitemu lobuchwepheshe bokwenza uhlaka.
Ikholomu engaphansi ichaza umgomo oyisisekelo we-MIMO;
Okokuqala, sicabanga ukuthi kunemifudlana emibili yedatha, A no-B, esakazwa ngesikhathi esisodwa.Lokhu kusakazwa kwedatha okubili kuthunyelwa ngokuhlukana ngama-antenna amabili.Ngalesi sikhathi, ama-data stream amabili kufanele athumele idatha ukuze idlule ohlelweni lwesiteshi esingenantambo futhi ifinyelele izimpondo ezimbili ngesikhathi esisodwa ukuze zamukele amasignali.Isiphetho sokwamukela sicubungula imifudlana yedatha emibili yamasignali edijithali futhi sibuyisela idatha yalokhu kusakazwa okubili ngokuzimela.Kufanele kuqashelwe ukuthi ekugcineni kokuthumela, isiphetho se-RF samasiginali amabili sisebenzisa ibhendi yefrikhwensi efanayo lapho kulungiswa.Isibonelo, esimweni se-5G 100M, amasiginali amabili asebenzisa umkhawulokudonsa ongu-100M.Vele ukhuphule inani lezimpondo.
Okungenhla yincazelo yolwazi ye-MIMO Basic Technical Principles elethwa nguI-Shenzhen Haidwiwei Optoelectronic Technology Co., Ltd., umkhiqizi wemishini yokuxhumana ebonakalayo.Siyakwamukela kuXhumana nathi.