802.11A / B / G / A ci gaba da bambanci

802.11A / B / G / A ci gaba da bambanci
Tun lokacin da aka fara sakin farko na Wi fi ga masu amfani da su 1997, Standarfin Wi Fi Fi, koyaushe yana canzawa da sauri da fadada ɗaukar hoto. Kamar yadda aka ƙara ayyukan a cikin asalin IEEE 802.11, an bita su ta hanyar gyara (802.11b, 802.11g, da sauransu)

802.11B 2.4GHZ
802.11b yana amfani da mitar GHZ iri 2.4 a matsayin na asali 802.11 misali. Yana tallafawa matsakaicin saurin wucewar 11 na MBPs da kewayon zuwa ƙafa 150. 802.11B Abubuwan da ke arha, amma wannan misali yana da mafi girma da sauri a tsakanin dukkanin ka'idodi 802.11. Kuma saboda 802.11b aiki a 2.4 GHZ, kayan aikin gida ko wasu hanyoyin sadarwar 2.4 na iya haifar da tsangwama.

802.11A 5GHZ OGHZG
An sake fasalin sigar "A" wannan ma'aunin lokaci guda tare da 802.11b. Yana gabatar da mafi fasahar hadadden da ake kira na nadm (Divert na Orthogonal Divicing Mobuden Mobuding) don samar da alamun waya. 802.11A.11A tana ba da tallafi kan 802.11b: Yana aiki a cikin ƙasa maras nauyi 5 GHZ mai yawa kuma saboda haka ya zama mai saukin tsangwama ga tsangwama. Kuma bandwidth ya fi 802.11b, tare da matsakaicin adadin Mbps 54.
Wataƙila ba ku ci karo da na'urorin 802.111 ba ko masu zirga-zirga. Wannan saboda na'urorin 802.111 ne masu rahusa kuma suna ƙara ƙaruwa a kasuwar mabukaci. 802.11A ana amfani dashi musamman don aikace-aikacen kasuwanci.

802.11G 2.4GHZ PEDM
Ka'idojin 802.11g suna amfani da fasahar na unddm iri ɗaya kamar 802.11A. Kamar 802.11A, yana goyan bayan matsakaicin adadin ƙimar 54 Mbps. Koyaya, kamar 802.11b, yana aiki a cikin tarin abubuwa 2.4 na ghz (kuma saboda haka yana fama da maganganun tsangwama guda 802.11b). 802.11g yana da jituwa tare da na'urorin 802.11b: 802.1.11b na'urorin na iya haɗa zuwa maki 802.11G (amma a 8021Bin gudu).
Tare da 802.11g, masu cin kasuwa sun sami ci gaba mai mahimmanci a cikin Wi fi sauri da ɗaukar hoto. A halin yanzu, idan aka kwatanta da na farko mutanen samfuran samfuran, masu amfani da na'urori marasa amfani suna zama mafi kyau kuma mafi kyau, tare da mafi girma iko da mafi girma ɗaukar hoto.

802.11n (Wi fi 4) 2.4 / 5ghz MIMO
Tare da daidaitaccen matsayi na 802.11N, Wi fi ya zama cikin sauri kuma mafi abin dogara. Yana tallafawa matsakaicin iskar watsa labarai na Mbps (har zuwa 450 MBPs lokacin amfani da eriya uku). 802.11N Amfani da MIMO (abubuwan buɗewa da yawa), inda masu watsa mahara masu yawa / masu watsa hankali suna aiki lokaci guda a ɗaya ko duka ƙarshen hanyar haɗin. Wannan na iya haɓaka bayanai masu mahimmanci ba tare da buƙatar mafi girma bandwidth ko watsa iko. 802.11N na iya aiki a cikin 2.4 GHZ da mitoci 5 GHZ.

802.11AC (Wi Fi 5) 5ghz Mu-Mimo
802.11AC yana haɓaka Wi Fi, tare da saurin shiga daga 433 MBS ga Gigabs da yawa na biyu. Don cimma wannan wasan, 802.11Aka yana aiki ne kawai a cikin ƙungiyar ghz 5 na Ghz, yana tallafawa har zuwa koguna huɗu na 802, kuma suna amfani da fasahar da ake kira katako. Tare da katako, antennas na iya watsa sishan rediyo, don haka suna nuna takamaiman na'urori.

Wani babban ci gaba na 802.11AC shine mai amfani da yawa (Mu-MIMO). Kodayake MIMO ya jagoranci koguna da yawa zuwa abokin ciniki guda ɗaya, Mu-MIMTO na iya ɗorewa madaidaiciya madaidaiciya zuwa abokan ciniki da yawa. Kodayake mu-mimo ba ya ƙara saurin kowane abokin ciniki na mutum, zai iya inganta abubuwan data kasancewar hanyar sadarwa gaba ɗaya.
Kamar yadda kake gani, yana ci gaba da yin amfani da Wi Fi Fi don canzawa, tare da yiwuwar saurin aiki da aiki gabaɗaya da yawa

802.11ax Wi Fi 6
A shekara ta 2018, Allion Wifi Alliance ya dauki matakan yin sunaye na WiFi mafi sauƙin ganewa da fahimta. Za su canza matsayin 802.11AX zuwa Wifi6

Wi fi 6, a ina ne 6?
Manufofin aikin Wi fi sun hada da isar da sako, ragi, karfin sadarwa, da rayuwar baturi. Tare da ci gaban fasaha da lokutan, bukatun mutane don gudu da bandwidth suna zama ƙara girma.
Akwai matsaloli a cikin haɗin Wi fi na gargajiya na gargajiya, kamar su cunkoso, ƙananan ɗaukar hoto, da kuma buƙatar sauyawa da ssids.
Amma Wi Fi 6 zai kawo sabbin canje-canje: Yana inganta amfani da wutar lantarki da ɗaukar hoto mai yawa, kuma yana iya nuna kyakkyawan aiki mai zurfi, kuma yana iya nuna kyakkyawan aiki mai zurfi, kuma yana iya haɓaka ƙimar watsa m.
Gabaɗaya, idan aka gāba da magabata, fa'idar Wi Fi 6 ita ce "Dual High da Dual Lower":
Babban saurin: Godiya ga gabatarwar fasahar kamar UPLIN MU-MIFO, 1024QAMS, wanda aka ce ya zama mai kama da saurin bugun jini.
High damar: Mafi mahimmancin cigaba da Wi Fi 6 shine rage cunkoso kuma yana ba da damar ƙarin na'urori da za su haɗa zuwa cibiyar sadarwa. A halin yanzu, Wi Fi 5 na iya sadarwa tare da na'urori huɗu lokaci guda, yayin da Wi Fi 6 zai ba da damar sadarwa tare da yawan na'urori guda ɗaya. Wi fi 6 kuma yana amfani da Ondma (Divory Mitar Mitawa dama da yawa) da kuma sigina na tashar jiragen ruwa da yawa sun samo asali daga 5g don inganta ƙarfin sadarwa da kuma hanyar sadarwa.
Letency latency: Ta hanyar amfani da ƙirar kamar Ondma da Spatialreuse, Wi Fihiri da yawa don watsa ma'amala da jira, haɓaka haɓakawa, da rage latency, da rage latency, da rage lactency. Daga 30ms ga Wi Fi 5 zuwa 20ms, tare da matsakaicin raguwar ragin 33%.
Perarancin amfani mai ƙarfi: Twt, wata sabuwar fasaha a Wi Fi 6, yana ba da damar yin shawarwari tare da tashoshi, rage lokacin da ake buƙata don kula da sasantawa da bincika sigina. Wannan yana nufin rage yawan amfani da inganta rayuwar batir, sakamakon shi a cikin adadin 30% a cikin amfani da wutar lantarki.

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