1.Network kev ruaj ntseg raws tu qauv
Hauv kev tes hauj lwm wireless, qhov tseem ceeb ntawm kev ruaj ntseg network tsis tuaj yeem cuam tshuam.Wifi yog lub wireless network uas tso cai rau ntau yam khoom siv thiab cov neeg siv txuas rau Is Taws Nem los ntawm ib qho chaw nkag.Wifi kuj tseem siv nyob rau hauv cov chaw pej xeem, qhov twg tsis muaj kev tswj xyuas tsawg dua leej twg tuaj yeem txuas rau lub network.Hauv cov tuam tsev lag luam, cov ntaub ntawv tsim nyog yuav tsum tau muaj kev tiv thaiv nyob rau hauv cov ntaub ntawv phem hackers sim ua kom puas lossis nyiag cov ntaub ntawv.
Wifi 5 txhawb WPA thiab WPA2 raws tu qauv rau kev sib txuas ruaj ntseg.Cov no yog cov kev txhim kho kev ruaj ntseg tseem ceeb tshaj li WEP raws tu qauv tam sim no, tab sis tam sim no nws muaj ob peb qhov tsis zoo thiab tsis muaj zog.Ib qho tsis zoo li no yog phau ntawv txhais lus tawm tsam, qhov twg cybercriminals tuaj yeem kwv yees koj tus lej zais zais nrog ntau qhov kev sim thiab kev sib txuas.
Wifi 6 yog nruab nrog qhov tseeb kev ruaj ntseg raws tu qauv WPA3.Yog li, cov khoom siv uas txhawb nqa Wifi 6 siv WPA, WPA2, thiab WPA3 raws tu qauv ib txhij.Wifi Protected Access 3 Txhim kho ntau qhov kev lees paub thiab cov txheej txheem encryption.Nws muaj OWE thev naus laus zis uas tiv thaiv tsis siv neeg encryption, thiab thaum kawg, scannable LOSSIS cov lej txuas ncaj qha rau lub cuab yeej.
2.Cov ntaub ntawv kis ceev
Kev nrawm yog qhov tseem ceeb thiab zoo siab uas cov thev naus laus zis tshiab yuav tsum hais ua ntej lawv tuaj yeem tso tawm.Kev nrawm yog qhov tseem ceeb rau txhua yam uas tshwm sim hauv Is Taws Nem thiab txhua hom network.Cov nqi nrawm dua txhais tau tias lub sijhawm rub tawm luv dua, streaming zoo dua, hloov cov ntaub ntawv sai dua, kev sib tham video zoo dua thiab lub suab sib tham, tshawb nrhiav sai dua thiab ntau dua.
Wifi 5 muaj qhov theoretical siab tshaj plaws cov ntaub ntawv hloov chaw ceev ntawm 6.9 Gbps.Hauv lub neej tiag tiag, qhov nruab nrab cov ntaub ntawv hloov pauv ceev ntawm 802.11ac tus qauv yog li 200Mbps.Tus nqi ntawm tus qauv Wifi ua haujlwm nyob ntawm QAM (quadrature amplitude modulation) thiab tus naj npawb ntawm cov khoom siv txuas nrog rau qhov chaw nkag lossis router.Wifi 5 siv 256-QAM modulation, uas yog qis dua Wifi 6. Tsis tas li ntawd, Wifi 5 MU-MIMO thev naus laus zis tso cai rau kev sib txuas ib txhij ntawm plaub lub cuab yeej.Ntau cov khoom siv txhais tau tias muaj kev sib koom ua ke thiab kev sib koom bandwidth, ua rau qeeb qeeb rau txhua lub cuab yeej.
Hauv qhov sib piv, Wifi 6 yog qhov kev xaiv zoo dua ntawm kev ceev, tshwj xeeb tshaj yog tias lub network muaj neeg coob.Nws siv 1024-QAM kev hloov kho rau qhov theoretical siab tshaj qhov kis tau tus mob mus txog 9.6Gbps.wi-fi 5 thiab wi-fi 6 speeds tsis txawv ntau los ntawm ntaus ntawv mus rau ntaus ntawv.Wifi 6 yeej ib txwm nrawm dua, tab sis qhov txiaj ntsig tiag tiag yog thaum muaj ntau yam khoom siv txuas nrog Wifi network.Tus naj npawb ntawm cov khoom siv txuas nrog uas ua rau poob qis hauv qhov nrawm thiab lub zog hauv Is Taws Nem ntawm Wifi 5 cov khoom siv thiab routers thaum siv Wifi 6 yuav tsis pom.
3. Txoj kev ntawm txoj kab sib dhos
Beam forming yog cov txheej txheem xaim hluav taws xob uas coj cov teeb liab wireless mus rau ib qho kev txais tshwj xeeb, tsis yog nthuav tawm cov teeb liab los ntawm kev sib txawv.Siv beamforming, qhov chaw nkag tuaj yeem xa cov ntaub ntawv ncaj qha mus rau lub cuab yeej es tsis txhob tshaj tawm cov teeb liab hauv txhua qhov kev qhia.Beam forming tsis yog cov cuab yeej tshiab thiab muaj cov ntawv thov hauv Wifi 4 thiab Wifi 5. Nyob rau hauv tus qauv Wifi 5, tsuas yog siv plaub lub kav hlau txais xov.Wifi 6, txawm li cas los xij, siv yim lub kav hlau txais xov.Qhov zoo dua ntawm Wifi router lub peev xwm los siv beam forming technology, qhov zoo dua cov ntaub ntawv tus nqi thiab ntau yam ntawm cov teeb liab.
4. Orthogonal Frequency Division Multiple Access (OFDMA)
Wifi 5 siv thev naus laus zis hu ua orthogonal zaus division multiplexing (OFDM) rau kev tswj xyuas kev siv network.Nws yog ib txoj hauv kev los tswj cov naj npawb ntawm cov neeg siv nkag mus rau ib qho subcarrier ntawm ib lub sijhawm tshwj xeeb.Hauv 802.11ac tus qauv, 20mhz, 40mhz, 80mhz thiab 160mhz bands muaj 64 subcarriers, 128 subcarriers, 256 subcarriers thiab 512 subcarriers feem.Qhov no txwv tsis pub tus naj npawb ntawm cov neeg siv tuaj yeem txuas rau thiab siv Wifi network ntawm lub sijhawm.
Wifi 6, ntawm qhov tod tes, siv OFDMA (orthogonal zaus faib ntau yam nkag).OFDMA thev naus laus zis multiplexes qhov chaw subcarrier uas twb muaj lawm hauv tib zaus.Los ntawm kev ua qhov no, cov neeg siv tsis tas yuav tos nyob rau hauv kab rau tus neeg nqa khoom pub dawb, tab sis tuaj yeem nrhiav tau yooj yim.
OFDMA faib cov peev txheej sib txawv rau ntau tus neeg siv.OFDMA yuav tsum tau plaub zaug ntau li ntau subcarriers ib channel zaus raws li yav dhau los technologies.Qhov no txhais tau hais tias nyob rau hauv 20mhz, 40mhz, 80mhz, thiab 160mhz raws, tus qauv 802.11ax muaj 256, 512, 1024, thiab 2048 subcarriers feem.Qhov no txo qis congestion thiab latency, txawm tias thaum txuas ntau yam khoom siv.OFDMA txhim kho kev ua tau zoo thiab txo qis latency, ua rau nws zoo tagnrho rau kev ua haujlwm qis-bandwidth.
5. Ntau tus neeg siv ntau cov tswv yim ntau qhov tso zis (MU-MIMO)
MU MIMO stands rau "ntau tus neeg siv, ntau lub tswv yim, ntau cov zis".Nws yog lub tshuab wireless uas tso cai rau ntau tus neeg siv sib txuas lus nrog lub router ib txhij.Los ntawm Wifi 5 mus rau Wifi 6, lub peev xwm ntawm MU MIMO txawv heev.
Wifi 5 siv downlink, ib-txoj kev 4 × 4 MU-MIMO.Qhov no txhais tau hais tias ntau tus neeg siv nrog cov kev txwv tshwj xeeb tuaj yeem nkag mus rau lub router thiab qhov ruaj khov Wifi txuas.Thaum qhov kev txwv ntawm 4 kev sib kis ib txhij dhau lawm, Wifi yuav congested thiab pib pom cov tsos mob ntawm congestion, xws li nce latency, pob ntawv poob, thiab lwm yam.
Wifi 6 siv 8 × 8 MU MIMO thev naus laus zis.Qhov no tuaj yeem ua haujlwm txog li 8 lub cuab yeej txuas nrog thiab siv lub wireless LAN yam tsis muaj kev cuam tshuam.Zoo dua, qhov hloov kho Wifi 6 MU MIMO yog bidirectional, lub ntsiab lus peripherals tuaj yeem txuas rau lub router ntawm ntau zaus bands.Qhov no txhais tau tias kev txhim kho muaj peev xwm upload cov ntaub ntawv rau hauv Internet, ntawm lwm yam kev siv.
6. Zaus Bands
Ib qho kev sib txawv ntawm Wifi 5 thiab Wifi 6 yog qhov zaus ntawm ob lub thev naus laus zis.Wifi 5 tsuas yog siv 5GHz band thiab muaj kev cuam tshuam tsawg dua.Qhov tsis zoo yog tias cov teeb liab ntau luv luv thiab muaj peev xwm nkag mus rau phab ntsa thiab lwm yam teeb meem raug txo.
Wifi 6, ntawm qhov tod tes, siv ob pawg zaus, tus qauv 2.4Ghz thiab 5Ghz.Hauv Wifi 6e, cov tsim tawm yuav ntxiv 6ghz band rau Wifi 6 tsev neeg.Wifi 6 siv ob qho tib si 2.4Ghz thiab 5Ghz bands, uas txhais tau hais tias cov cuab yeej tuaj yeem luam theej duab thiab siv cov band no nrog kev cuam tshuam tsawg dua thiab siv tau zoo dua.Txoj kev no, cov neeg siv tau txais qhov zoo tshaj plaws ntawm ob lub tes hauj lwm, nrog ceev ceev ntawm qhov ze thiab dav dua thaum cov khoom siv tsis nyob hauv tib qhov chaw.
7. Muaj cov xim BSS
BSS coloring yog lwm feature ntawm Wifi 6 uas teev nws sib nrug los ntawm yav dhau los tiam.Qhov no yog qhov tshiab ntawm Wifi 6 tus qauv.BSS, lossis cov txheej txheem kev pabcuam, nws tus kheej yog ib qho ntawm txhua 802.11 network.Txawm li cas los xij, tsuas yog Wifi 6 thiab tiam tom ntej yuav tuaj yeem txiav txim siab BSS xim los ntawm lwm yam khoom siv siv BSS xim cim.Qhov no feature yog ib qho tseem ceeb heev vim hais tias nws pab tiv thaiv cov teeb liab los ntawm overlapping.
8. Lub sij hawm Incubation txawv
Latency yog hais txog qhov qeeb ntawm kev xa cov pob ntawv los ntawm ib qho chaw mus rau lwm qhov.Qhov qeeb qeeb qeeb ze ze rau qhov zoo tshaj plaws, qhia tias qeeb me ntsis lossis tsis muaj qeeb.Piv nrog rau Wifi 5, Wifi 6 muaj luv luv latency, ua rau nws zoo tagnrho rau kev lag luam thiab cov koom haum lag luam.Cov neeg siv hauv tsev tseem yuav nyiam qhov tshwj xeeb no ntawm cov qauv Wifi tshiab, vim nws txhais tau tias nrawm dua hauvternet kev twb kev txuas.
Post lub sij hawm: May-10-2024