Inzuzo ye-WIFI 6 ONT

Uma kuqhathaniswa nezizukulwane zangaphambilini zobuchwepheshe be-WiFi, izici eziyinhloko zesizukulwane esisha se-WiFi 6 yilezi:
Uma kuqhathaniswa nesizukulwane sangaphambilini se-802.11ac WiFi 5, izinga eliphezulu lokudluliswa kwe-WiFi 6 likhushulwe lisuka ku-3.5Gbps kuneyokuqala laya ku-9.6Gbps, futhi ijubane elingokwemfundiso likhushulwe cishe izikhathi ezintathu.
Ngokuphathelene namabhendi emvamisa, i-WiFi 5 ifaka i-5GHz kuphela, kuyilapho i-WiFi 6 ifaka i-2.4/5GHz, ifaka ngokugcwele amadivayisi anesivinini esiphansi kanye nesivinini esikhulu.
Ngokuphathelene nemodi yokushintshashintsha, i-WiFi 6 isekela i-1024-QAM, ephakeme kune-256-QAM ye-WiFi 5, futhi inomthamo wedatha ophezulu, okusho isivinini sokudlulisa idatha esiphezulu.

Ukubambezeleka okuphansi
I-WiFi 6 ayigcini nje ngokwanda kwamazinga okulayisha nokulanda, kodwa futhi iwukuthuthuka okukhulu ekuminyaneni kwenethiwekhi, okuvumela amadivayisi amaningi ukuthi axhumeke kunethiwekhi engenantambo futhi abe nolwazi lokuxhumana olusheshayo oluqhubekayo, okubangelwa kakhulu ubuchwepheshe obusha be-MU-MIMO kanye ne-OFDMA.
Izinga le-WiFi 5 lisekela ubuchwepheshe be-MU-MIMO (ukufakwa okuningi kwabasebenzisi abaningi), obusekela kuphela i-downlink, futhi bungabhekana nalobu buchwepheshe kuphela uma ulanda okuqukethwe. I-WiFi 6 isekela kokubili i-uplink kanye ne-downlink MU-MIMO, okusho ukuthi i-MU-MIMO ingatholakala lapho ulayisha futhi ulanda idatha phakathi kwamadivayisi eselula nama-router angenantambo, okuthuthukisa ukusetshenziswa kwe-bandwidth kwamanethiwekhi angenantambo.
Inani eliphezulu lemifudlana yedatha yendawo esekelwa yi-WiFi 6 likhuliswe lisuka ku-4 ku-WiFi 5 laya ku-8, okungukuthi, lingasekela inani eliphezulu le-MU-MIMO elingu-8×8, okungenye yezizathu ezibalulekile zokwenyuka okukhulu kwesilinganiso se-WiFi 6.
I-WiFi 6 isebenzisa ubuchwepheshe be-OFDMA (Orthogonal Frequency Division Multiple Access), okuyinguqulo ethuthukisiwe yobuchwepheshe be-OFDM obusetshenziswa ku-WiFi 5. Ihlanganisa ubuchwepheshe be-OFDM ne-FDMA. Ngemva kokusebenzisa i-OFDM ukuguqula isiteshi sibe yinkampani yokuthwala engumzali, ezinye izinkampani ezincane Ubuchwepheshe bokudlulisa idatha buvumela abasebenzisi abahlukene ukuthi babelane ngesiteshi esifanayo, okuvumela amadivayisi amaningi ukuthi afinyelele, ngesikhathi esifushane sokuphendula kanye nokubambezeleka okuphansi.

Ngaphezu kwalokho, i-WiFi 6 isebenzisa indlela yokudlulisa i-Long DFDM Symbol ukwandisa isikhathi sokudlulisa senkampani ngayinye yesiginali kusuka ku-3.2 μs ku-WiFi 5 kuya ku-12.8 μs, kunciphisa izinga lokulahlekelwa yiphakethe kanye nezinga lokudluliselwa kabusha, futhi kwenze ukudluliselwa kuzinze kakhudlwana.

Umthamo omkhulu
I-WiFi 6 yethula indlela yokufaka imibala ye-BSS, imaka idivayisi ngayinye exhunywe kunethiwekhi, futhi ifaka amalebula ahambisanayo kudatha yayo ngesikhathi esisodwa. Lapho ithumela idatha, kunekheli elihambisanayo, futhi ingadluliselwa ngqo ngaphandle kokudideka.

Ubuchwepheshe be-MU-MIMO obusebenzisa abasebenzisi abaningi buvumela ama-terminal amaningi ukuthi abelane ngesiteshi sesikhathi senethiwekhi yekhompyutha, ukuze omakhalekhukhwini/amakhompyutha amaningi akwazi ukuphequlula i-inthanethi ngesikhathi esisodwa. Kuhlanganiswe nobuchwepheshe be-OFDMA, isiteshi ngasinye ngaphansi kwenethiwekhi ye-WiFi 6 singenza ukudluliselwa kwedatha okusebenzayo kakhulu, kuthuthukiswe abasebenzisi abaningi. Ulwazi lwenethiwekhi endaweni yesehlakalo lungahlangabezana kangcono nezidingo zezindawo ze-WiFi hotspot, ukusetshenziswa kwabasebenzisi abaningi, futhi akulula ukuyimisa, futhi umthamo wayo mkhulu.

Kuphephile
Uma idivayisi ye-WiFi 6 (i-router engenantambo) idinga ukuqinisekiswa yi-WiFi Alliance, kumele isebenzise iphrothokholi yokuphepha ye-WPA 3, ephephe kakhulu.
Ekuqaleni kuka-2018, i-WiFi Alliance yakhipha isizukulwane esisha sephrothokholi yokubethela i-WiFi i-WPA 3, okuyinguqulo ethuthukisiwe yephrothokholi ye-WPA 2 esetshenziswa kabanzi. Ukuphepha kuthuthukiswa kakhulu, futhi kungavimbela kangcono ukuhlaselwa kwe-brute force kanye nokuqhekeka kwe-brute force.
ukonga amandla okwengeziwe
I-WiFi 6 yethula ubuchwepheshe be-TARget Wake Time (TWT), obuvumela ukuhlela isikhathi sokuxhumana phakathi kwamadivayisi nama-router angenantambo, kunciphisa ukusetshenziswa kwama-antenna enethiwekhi angenantambo kanye nesikhathi sokusesha isignali, okunganciphisa ukusetshenziswa kwamandla ngezinga elithile futhi kuthuthukise impilo yebhethri yedivayisi.

I-HUANET inikeza i-WIFI 6 ONT, uma unentshisekelo kuyo, sicela usithinte.