Sivame ukuthatha i-Wi-Fi kalula. Uma sicabanga ngesivinini se-inthanethi, sivame ukubheka ubuchwepheshe obunikezwa umhlinzeki wesevisi.
Cabanga ukuthi kungakanani ukuthuthukiswa esikwenzile uma ubheka i-inthanethi yokudayela futhi uyiqhathanise nesivinini esitholwa i-fiber optic internet.
Ngaphandle kwentuthuko eyenziwe kubuchwepheshe bokuxhuma idatha, asiboni kancane ukuthi ubuchwepheshe obungenawaya obufika nabo buye benza intuthuko enkulu.
Kungakhathaliseki ukuthi isivinini sakho se-inthanethi sishesha kangakanani, uxhumano lwe-Wi-Fi olunensayo lusengaba nomthelela obonakalayo ekuphequluleni kwakho.
Kulesi sihloko sizobe sibheka ubuchwepheshe be-Wi-Fi, i-Gi-Fi ne-Li-Fi.
Okokuqala, sizobe sihlola umlando omfushane wokuthi i-Wi-Fi ibilokhu ifinyelela kanjani isivinini se-inthanethi esisheshayo. Okulandelayo, sizophinde sibheke ubuchwepheshe obusha obaziwa nge-Li-Fi, abathi bushesha kakhulu kunamazinga amanje e-Wi-Fi.
Yini i-Wi-Fi?
I-Wi-Fi ubuchwepheshe benethiwekhi engenantambo obuvumela amadivayisi ukuthi axhume ku-inthanethi. Uma sikhuluma ngobuchwepheshe, i-Wi-Fi esiyisebenzisayo namuhla isekelwe ezingeni lamazwe ngamazwe elaziwa ngokuthi yi-IEEE 802.11.
Leli zinga lenza ukuxhumana phakathi kwamadivayisi namarutha enziwe abakhiqizi emhlabeni wonke.
I-Wi-Fi isebenza kangcono ekusetshenzisweni komugqa wokubona. Lokhu kusho ukuthi izithiyo ezifana nezindonga nezinto zikagesi ezinkulu zasendlini zinganciphisa ububanzi bomzila ngamunye.
Imikhawulo ye-Wi-Fi
- Speed: Uma kuqhathaniswa noxhumo olunezintambo, i-Wi-Fi iyindlela yokuxhumana enensa. Ukuxhumeka okungenantambo nakho kunganciphisa uma amadivayisi amaningi abelana ngoxhumo olufanayo lwe-Wi-Fi
- Komkhawulokudonsa: Amarutha amaningi atholakalayo kwezentengiso avumela kufikela kumadivayisi angama-30.
- Ukuhlanganisa: Ukuxhumeka okungenantambo kungase kuhlangabezane “nezindawo ezimnyama” lapho isignali ingatholakali kalula ngenxa yokuthi ikude kangakanani nomzila noma ngenxa yezinye izithiyo.
- Security: I-Wi-Fi isengcupheni yokuhlaselwa abalingisi abanonya njengoba izindawo zokufinyelela ngokuvamile zivezwa ngokuzenzakalela. Uma kuqhathaniswa noxhumo olunezintambo olufana ne-Ethernet, i-Wi-Fi ayidingi uxhumano lwangempela. Umuntu kufanele avele abe ngaphakathi kwebanga lenethiwekhi.
I-Gi-Fi: I-Evolution of Gigabit Fidelity
I-Gi-Fi isho ukuxhumana okungenantambo okungasingatha izinga ledatha lamabhithi noma amagigabhithi angaphezu kwebhiliyoni ngomzuzwana.
Igama elincane elingacacile, kodwa livame ukuhlotshaniswa nezinga le-IEEE 802.15.3C, elashicilelwa ngo-2009. Leli zinga livumela amanani edatha aphezulu kakhulu ebangeni elifushane elingafika ku-10m.
Kusukela kwethulwa izinga lokuqala le-Wi-Fi ngo-1999, i-Wi-Fi inyuke kancane kancane izinga layo ledatha elimaphakathi nephezulu.
Ngo-2013, i-Wi-Fi yashesha nakakhulu ngokuvela kwezinga le-802.11ac, elipakisha cishe isivinini esiphindwe kathathu salowo owandulelayo, i-802.11n. Leli zinga liphula umgoqo wegigabhithi ngomzuzwana.
Namuhla, sibhekisela kuleli zinga njengezinga le-Wi-Fi 5.
Muva nje, i-Wi-Fi Alliance ibisebenza ngezinga elilandelayo elaziwa nge-802.11ax, elivame ukubizwa ngokuthi. I-Wi-Fi 6.
I-Wifi-6 ngokwethiyori ingaba phezulu cishe ku-9.6Gbps, okuwukunyuka ukusuka ku-Wi-Fi 5's 3.5 Gbps. Amarutha e-Wi-Fi 6 azoklanywa ukuthi aphathe ngempumelelo inqwaba yamadivayisi endlini eyodwa.
Lokhu kubaluleke kakhulu njengoba ukukhula kobuchwepheshe be-inthanethi Yezinto kuqhubeka.
Kunobuchwepheshe obubili obubalulekile be-Wi-Fi 6. I MU-MIMO ubuchwepheshe buvumela irutha ukuthi ixhumane namadivayisi angafika kwangu-8 ngaleso sikhathi.
I-OFDMA, noma i-orthogonal frequency division ukufinyelela okuningi kungavumela irutha ukuthi ilethe idatha kumadivayisi amaningi ngokudlulisa okukodwa.
Bobabili lobu buchwepheshe buzovumela ukuxhumana okusheshayo phakathi kwerutha yakho namadivayisi azungezile.
Iyini i-Li-Fi?
I-Li-Fi isho uhlobo lobuchwepheshe bokuxhumana obungenantambo obusebenzisa ukukhanya ukudlulisa idatha phakathi kwamadivayisi. Isebenza ngokusebenzisa amandla kagesi kusibani se-LED. Njengoba ama-LED engamadivayisi e-semiconductor, angasetshenziswa ukuze ashintshe ngesivinini esiphezulu kakhulu.
Lokhu kuguquguquka okunamandla akukwazi ukubonwa ngeso lomuntu kodwa kungatholwa futhi kuhunyushwe imitshina ye-Li-Fi ekhethekile.
Ubuchwepheshe bufana ne-Wi-Fi, kodwa ngenkathi i-Wi-Fi isebenzisa imvamisa yomsakazo ukudlulisa idatha, i-Li-Fi isebenzisa ukuguquguquka kokuqina kokukhanya ukudlulisa idatha.
Ngenxa yalokhu, i-Li-Fi inenzuzo ezindaweni ezisengozini yokuphazanyiswa yi-electromagnetic. Ngokombono, i-Li-Fi ingadlulisa ngesivinini esingafika ku-100 Gbps.
I-Li-Fi isengasebenza emini ngoba ubuchwepheshe buncike ekutholweni kwezinguquko kubukhulu bokukhanya hhayi kumaleveli aphelele angasethwa indawo yamanje.
I-Li-Fi isebenzisa ubuchwepheshe be-optical wireless communications (OWC). Ubuchwepheshe besimanje be-OWC busebenzisa amalaser noma ama-light emitting diode (ama-LED) njengabathumeli.
Izici ezibalulekile ze-Li-Fi
- I-Li-Fi ayinaziphazamiso. Izimpawu ze-Li-Fi zingasetshenziswa ezindaweni ezinobutha njengezibhedlela, izindiza, nezimboni.
- Ubuchwepheshe bunikeza nokubambezeleka okuphansi okufika phansi ngokuphindwe kathathu kune-Wi-Fi.
- I-Li-Fi ivikeleke kakhulu ngoba izithiyo ezibonakalayo zimisa amasignali ekuphumeni kwegumbi.
- I-Li-Fi inikezela ngesevisi yokuqondisa kabili, okusho ukuthi ingaphatha kokubili okulayishiwe nokulandiwe ngesikhathi esisodwa.
- Ezinye izinhlelo zokusebenza sezivele zisekela ukuqinisekiswa kwe-WPA2 Personal kanye ne-Enterprise.
Izinzuzo nezingozi ze-Li-Fi
buhle
- Speed: amaza okukhanya angathwala ulwazi oluningi kunamaza omsakazo. Lokhu kusho ukuthi ukudluliswa kwedatha kuthatha isikhathi esifushane.
- Ukuphumelela: Noma iyiphi i-bulb ye-LED esivele isetshenziswa ingasebenzisa ubuchwepheshe be-Li-Fi. Abathwali abadingi ukuchitha isikhathi esiningi benza amarutha, ama-antenna, nezinye izingqalasizinda zokuxhumana.
- Security: Amanethiwekhi e-Li-Fi kunzima ukuwabamba uma ungaphandle kwegumbi lapho ubuchwepheshe busethwe khona. Ngokungafani ne-Wi-Fi, izindonga zendawo yakho yamanje zivimba amasiginali we-li-Fi.
- Ukutholakala: I-Li-Fi ingahlanganisa kalula nemithombo yokukhanya ekhona efana nezibani zomgwaqo, nezibani zokwakha.
bawo
- Kunomkhawulo ku-Range: Ngaphandle kwenzuzo kwezokuphepha, i-Li-Fi yokungakwazi ukungena ezintweni ezingacacile kusho ukuthi ububanzi be-Li-Fi bunomkhawulo impela. Ezindaweni ezivulekile, i-Li-Fi ingakhuphukela kumamitha ayi-10 kuphela.
- Ukuhambisana Okulinganiselwe: Njengobuchwepheshe obusha, imikhiqizo yabathengi evamile cishe ayinakujwayela i-Li-Fi maduze.
- Ayixazululi isivinini se-inthanethi: Abahlinzeki besevisi basalawula ukuthi ulwazi lungageleza ngokushesha kangakanani kudivayisi ye-Li-Fi.
Isiphetho
I-Wi-Fi ihlanganiswe ngokujulile endleleni umphakathi osebenza ngayo njengamanje. Kunzima ukucabanga umhlaba ongenawo i-Wi-Fi exhumanisa amafoni ethu, amakhompyutha aphathekayo, namadivayisi ahlakaniphile kuwebhu.
Njengoba isidingo sesivinini se-inthanethi esisheshayo siqhubeka sikhula, ubuchwepheshe be-Wi-Fi, Gi-Fi kanye ne-Li-Fi buzoqhubeka nokusungula izinto ezintsha.
Imakethe yabathengi evamile ijwayela i-Gi-Fi kancane kancane, noma ubuchwepheshe obungenawaya be-gigabit njengokusakaza ividiyo ye-4K kanye nenqwaba yamadivayisi ahlakaniphile aba yinto evamile.
Ubuchwepheshe obusha obufana ne-Li-Fi bufuna izimo zokusebenzisa amabhizinisi ukuze bazuze amanani edatha asheshayo nezici zokuphepha.
shiya impendulo