I-802.11ac ngumgangatho wee - Intanethi ezingenazintambo ezingenazintambo eziphambili kunezizukulwana zangaphambili ezingama- 802.11n . Ukubala emuva kwenguqu yokuqala engaziwayo ye-802.11 echazwe ngasemva ngo-1997, i-802.11ac ibonisa isizukulwana sesi-5 se-Wi-Fi. Ukuqhathaniswa no-802.11n kunye nabangaphambili, i-802.11ac inikezela ukusebenza komnatha ophezulu kunye nokukwazi ukuphunyezwa ngokusebenzisa i-hardware ephezulu kunye ne-firmware yeefowuni.
Imbali ye-802.11ac
Uphuhliso lobuchwepheshe lwe-802.11ac luqale ngo-2011. Nangona umgangatho ogqityiwe ekupheleni konyaka ka-2013 waza wavunywa ngokusemthethweni ngoJanuwari 7, 2014, iimveliso zabathengi ezisekelwe kwiinguqulelo zangaphambili ze-standard zibonwe ngaphambilana.
802.11ac Iinkcukacha zoBugcisa
Ukukhuphisana kwishishini kunye nenkxaso eqhubekayo nezicelo eziqhelekileyo njengentengiso yevidiyo efuna ukuxhunywa kwenethiwekhi ephezulu, i-802.11ac yenzelwe ukwenza okufanayo kwi- Gigabit Ethernet . Enyanisweni, i-802.11ac inikezela ngamaxabiso eenkcukacha ezifikelele kwi-1 Gbps . Yenza oku ngokudibanisa nokuphuculwa kokungabonakali kwentambo, ngakumbi:
- iziteshi ezisetyenziselwa ububanzi obubanzi (ububanzi) bobukhulu becala, kunye
- inani elikhulu leeMIMO ii-antenna ukuze kunikwe ukuhanjiswa kwamanye amaxesha
I-802.11ac isebenza kwi-5 GHz ibanga lesalathisi ngokungafani nezizukulwana ezidlulileyo ze-Wi-Fi ezisetyenziselwa ii-GHz iziteshi. Abaqulunqi be-802.11ac benze oku zizathu ezibini:
- ukuphepha imiba yokuphazamiseka okungenazintambo eziqhelekileyo eziqhelekileyo kwi 2.4 GHz njengoko ezinye iindidi zabathengi zisebenzisa ezo zihlandlo ezifanayo (ngenxa yezigqibo zolawulo zikaRhulumente)
- ukuphumeza iziteshi zokubanzi zokubonisa (njengoko kuchazwe ngasentla) kunokuba indawo ye-2.4 GHz ivumeleke ngokukhululekile
Ukugcina ukuhambelana ngokulandelelana nemveliso ye-Wi-Fi endala, ii-802.11ac zokunxibelelana ezingenazintambo ezingenazintambo zibandakanya inkxaso ehlukeneyo ye-802.11n-2.4 GHz protocol.
Enye into entsha ye-802.11ac ebizwa ngokuba yi-beamforming yenzelwe ukwandisa ukuthembeka kwezixhumo ze-Wi-Fi kwiindawo ezininzi. I-teamforming iteknoloji yenza ama-radios e-Wi-Fi ajolise ekuboneni izibonakaliso zazo kwicandelo elithile lokufumana i-antenna kunokusasaza isigxina kwi-180 okanye 360 degrees njengama-radios endabuko.
I-Beamforming yenye yoluhlu lweempawu ezikhethwe ngumgangatho we-802.11ac njengokhetho, kunye neziteshi zemiqondiso emibini ebanzi (160 MHz esikhundleni se-80 MHz) kunye nezinye izinto ezingabonakaliyo.
Imiba ene 802.11ac
Abanye abahlalutyi nabathengi banokungathembeki ngeenzuzo zehlabathi zangempela 802.11ac. Abathengi abaninzi abazange bathuthukise ngokuzenzekelayo amanethiwekhi abo asekhaya ukusuka ku-802.11g ukuya kuma-802.11n, umzekelo, njengoko umgangatho oseleyo udibanisa iimfuno ezisisiseko. Ukufumana inzuzo yokusebenza kunye nokusebenza okupheleleyo 802.11ac, iifowuni kumacala omabini oqhagamshelwano mazixhasa umgangatho omtsha. Ngoxa ii-802.11ac zihamba kwiimarike ngokukhawuleza , ii-802.11ac-zikwazi ukuthatha ixesha elide ukufumana indlela yazo kwii-smartphones kunye nee-laptops, umzekelo.