802.11ac ndi muyeso wa ma intaneti opanda Wi-Fi omwe apambana kwambiri kuposa mzere wakale wa 802.11n . Powerengera kachidutswa ka 802.11 kakang'ono koyambirira kamene kamasulidwa kumbuyo mu 1997, 802.11ac ikuimira chipangizo cha 5 cha Wi-Fi. Poyerekeza ndi 802.11n ndi oyambirira ake, 802.11ac amapereka mawonekedwe abwino ogwiritsira ntchito makina ndi mphamvu zomwe zimagwiritsidwa ntchito kudzera mu hardware yapamwamba kwambiri ndi firmware.
Mbiri ya 802.11ac
Kukula kwamakono kwa 802.11ac kunayamba mu 2011. Ngakhale kuti lamuloli linatsirizika kumapeto kwa chaka cha 2013 ndipo likuvomerezedwa pa January 7, 2014, malonda ogulitsa pogwiritsa ntchito malemba oyambirira omwe anawonekera kale.
802.11ac Zolemba zamakono
Kuti mupikisane nawo makampani komanso kuthandizira machitidwe ambiri omwe amagwiritsidwa ntchito monga mavidiyo omwe amafunika mautumiki apamwamba, 802.11ac adapangidwa kuti achite chimodzimodzi ndi Gigabit Ethernet . Inde, 802.11ac amapereka chiwerengero cha deta ya 1 Gbps . Imachita izi kupyolera muzowonjezera zosakaniza zopanda waya, makamaka:
- makanema omwe amagwiritsa ntchito maulendo akuluakulu (ambiri) maulendo, ndi
- chiwerengero chachikulu cha ma radio ndi ma antenna kuti athandize maulendo ambiri omwe amodzimodzi
802.11ac imagwira ntchito muzitsulo za ma GHz 5 kusiyana ndi mibadwo yakale ya Wi-Fi yomwe imagwiritsidwa ntchito ndi ma 2.4 GHz. Okonza 802.11ac adapanga izi pa zifukwa ziwiri:
- kupeĊµa zosokoneza zopanda waya zomwe zimakhalapo 2.4 GHz monga mitundu yambiri yamagetsi imagwiritsa ntchito maulendo omwewo (chifukwa cha zisankho za boma)
- Kugwiritsa ntchito njira zazikulu zozindikiritsira (monga tafotokozera pamwambapa) kuposa malo 2.4 GHz omwe amalola bwino
Kuti musamangogwirizanitsa ndi zinthu zakale zamtundu wa Wi-Fi, 802.11ac opanda mauthenga osayendetsedwa opanda waya amakhalanso ndi mavoti 802.11n ovomerezeka a proxy 2.4 GHz.
Chinthu china chatsopano cha 802.11ac chotchedwa beamforming chinapangidwa kuti chiwonjezere kudalirika kwa ma Wi-Fi okhudzana ndi malo ambiri okhudzidwa. Makina a teamforming amachititsa mafilimu a Wi-Fi kuti athandize zizindikiro zawo mwa kulandira mainala m'malo mofalitsa chizindikiro pa 180 kapena 360 madigiri ngati ma radio.
Beamforming ndi chimodzi mwa mndandanda wa zinthu zomwe zimasankhidwa ndi 802.11ac monga momwe mungakwaniritsire, pamodzi ndi mayendedwe amphamvu awiri (160 MHz mmalo mwake 80 MHz) ndi zinthu zina zambiri zosaoneka.
Nkhani ndi 802.11ac
Ofufuza ena ndi ogula akhala akukaikira kuti phindu ladziko lenileni 802.11ac limabweretsa. Ogulitsa ambiri sanayambe kusintha mawebusaiti awo kuchokera ku 802.11g mpaka 802.11n, mwachitsanzo, monga momwe muyezo wachikulire umagwirizanitsa zosowa zawo. Kuti muzisangalala ndi machitidwe opindulitsa ndi ntchito zonse 802.11ac, zipangizo pamapeto onse a kugwirizana ziyenera kuthandizira muyezo watsopano. Ngakhale oyendetsa 802.11ac amalowa pamsika mofulumira , zida za 802.11ac zakhala zotenga nthawi yaitali kuti zipeze njira yawo yopita ku mafoni a m'manja ndi laptops, mwachitsanzo.