I-802.11a / b / g / n / n / n / i-AC

I-802.11a / b / g / n / n / n / i-AC
Ukusukela kokukhutshwa kokuqala kwe-WI FI kubathengi ngo-1997, umgangatho we-WIN fi uhlala uvele, ngokuqhelekileyo ukwanda kwesantya kunye nokwanda kokugubungela. Njengoko imisebenzi yongezwa kwi-OLENEE ye-IEE 802.11 emiselweyo, yahlaziywa ngezilungiso (802.11b, 802.1g, njl njl)

802.11b 2.4ghz
I-802.11b isebenzisa i-2.4 ye-GHZ Frequency njengomgangatho wokuqala we-802.11. Ixhasa isantya se-theoreting se-11 MBPs kunye noluhlu lweenyawo ezili-150. Iinxalenye ezingama-802.11b zixabiso eliphantsi, kodwa lo mgangatho unesona santya siphezulu sesona siphezulu phakathi kwayo yonke imigangatho ye-802.11. Kwaye ngenxa ye-802.11b esebenza kwi-2.4 GHZ, izixhobo zekhaya okanye ezinye iinethiwekhi ze-GHZ fi zinokubangela uphazamiseko.

802.11a 5ghz ye-ofdm
Inguqulelo ehlaziyiweyo "ye" yale migangatho ikhutshwa ngaxeshanye no-802.11b. Yazisa itekhnoloji enzima kakhulu ebizwa ngokuba yi-OTDM (i-Orthogonal ye-Orthogonal Advices) yokuvelisa imiqondiso engenazingcingo. I-802.1a inika izibonelelo ezingaphezulu kwe-802.11b: isebenza kwi-5 ye-GHZ i-5 GHZ Frequency Band kwaye ngenxa yoko iphantsi kokuphazamiseka. Kwaye i-bandwidth iphakame kakhulu kune-802.11b, i-theoretical ephezulu ye-54 MBPS.
Ngekhe udibane nezixhobo ezininzi ezingama-802.11i okanye ii-routers. Oku kungenxa yokuba izixhobo ezingama-802.11b zixabiso eliphantsi kwaye ziye zanda ngakumbi kwimarike yabathengi. I-802.11a isetyenziselwa ikakhulu kwizicelo zeshishini.

802.11G 2.4gz ye-ofdm
Umgangatho we-802.11G usebenzisa itekhnoloji efanayo ye-ORDM njenge-802.11a. Njengabantu abangama-802.11 Nangona kunjalo, njengo-802.11b, isebenza ekuxineneni kwi-2.4 GHZ (kwaye ngenxa yoko ihlupheka kwimicimbi yokuphazamiseka efanayo ne-802.11b). I-802.11G ibuyela umva ngokuhambelana nezixhobo ezingama-802.11b: 802.11b izixhobo zinokuqhagamshela kwi-802.11g yokufikelela (kodwa kwi-802.1 isantya).
Ngo-802.11G, abathengi benze inkqubela phambili kwiSantya se-Wi FI kunye nokugubungela. Okwangoku, xa kuthelekiswa nezizukulwana zangaphambili zeemveliso, iintambo zabathengi abangenazingcingo zabangcono kwaye zingcono, ngamandla aphezulu kunye nokugubungela okungcono.

I-802.11n (WI FI 4) 2.4 / 5ghz mimo
Ngomgangatho we-802.11N, i-wi fi iye yakhawuleza kwaye inokuthenjwa ngakumbi. Ixhasa iqondo lokudluliselwa kwethiyori eliphezulu le-300 MBPS (ukuya kuthi ga kwi-450 MBPs xa usebenzisa i-eriyali ezintathu). I-802.11n isebenzisa i-mimo (igalelo lezinto ezininzi), apho utshintywe / abamkeli abaninzi / abamkeli basebenza ngaxeshanye kwisiphelo esinye okanye sozibini iziphelo zekhonkco. Oku kunokunyusa kakhulu idatha ngaphandle kokufuna ibhendi ephezulu okanye igunya lokuhambisa. I-802.11n inokusebenza kwi-2.4 GHZ kunye ne-5 GHZ Frequency.

I-802.11c (i-wi fi 5) 5gz mu-mimo
I-802.11c inyusa i-wi fi, ngesantya esivela kwi-433 MBPS ukuya kwi-gigits ezininzi ngomzuzwana. Ukufezekisa le nkqubo, i-802.11c isebenza kwibhendi ye-5 GHZ Rest, ixhasa imijelo emine yendawo (xa ithelekiswa nemilambo emine ye-802.1), iphinda iphindwe kabini ububanzi be-80 mhz, kwaye isebenzisa itekhnoloji ebizwa ngokuba yiTekhnoloji. Ngokuthobeka, i-entennas inokudlulisela imiqondiso yerediyo, ke ngoko ichaza ngokuthe ngqo kwizixhobo ezithile.

Enye inkqubela phambili ebalulekileyo ye-802.11c ngumsebenzisi we-Multi (Mu-mimo). Nangona i-mimo iyalela imijelo emininzi ukuya kumthengi omnye, i-MU-mimo inokulathisa i-Shinatial Stoams kubangeneleli abaninzi. Nangona i-mu-mimo ayikhulisi isantya sayo nayiphi na into eyenziwa ngumthengi, inokuphucula ukwenziwa kwedatha iyonke kuyo yonke inethiwekhi.
Njengoko ubona, ukusebenza kwe-wi fi fi uqhubeka nokuvela, kunye nezantya ezinokubakho kunye nentsebenzo yokuthetha

802.11ax wi 6
Ngo-2018, umanyano lwe-Wifi lwaluthatha amanyathelo okwenza amagama asemgangathweni we-wifi kube lula ukuba aqonde kwaye aqonde. Baza kutshintsha umgangatho we-802.11ax emiselweyo kwi-wifi6

I-Wi fi 6, uphi i-6?
Izikhombisi ezininzi zomsebenzi ze-WIN zibandakanya umgama othumelayo, iqondo lokuhambisa, amandla enethiwekhi, kunye nobomi bebhetri. Ngokuphuhliswa kwetekhnoloji kunye namaxesha, iimfuno zabantu zesantya kunye nebhendi ziya zisiba nzima.
Kukho uthotho lweengxaki kunxibelelwano lwemveli lwe-Wi FI, njengokuxinana kwenethiwekhi, ukugubungela okuncinci, kunye nemfuno yokuguqula i-SSIDS.
Kodwa i-Wi fi 6 iya kuzisa utshintsho olutsha: Iyonke inyathelo lokuhlawulelwa kwezixhobo, kwaye ixhasa umsebenzi oqinisekileyo wezinto eziphezulu, kwaye unokubonisa ukusebenza kakuhle kwimeko eninzi, ngelixa ikwazisa imigama emide kunye nenqanaba lokuhambisa eliphezulu.
Ngokubanzi, xa kuthelekiswa nabaqeshwe kwangaphambili, inzuzo ye-Wi fi 6 "ihlala iphantsi kwaye iphantsi":
Isantya esiphezulu: Enkosi ngokuqaliswa kwetekhnoloji efana ne-uplink mu-nimo, i-1024Qam yemo-mdumba, kunye ne-8mimo, esona siphezulu se-WI FI 6 sinokufana kwisantya esibekiweyo.
Ukufikelela okuphezulu: Olona phuculo lubaluleke kakhulu kwi-WI FI 6 kukunciphisa uxinzelelo kwaye uvumele izixhobo ezingaphezulu ziqhagamshele kwinethiwekhi. Okwangoku, i-Wi fi 5 inokunxibelelana nezixhobo ezine ngaxeshanye, ngelixa i-Wi fi 6 iya kuvumela unxibelelwano lwayo kwizinto ezininzi ngaxeshanye. I-WIN FI 6 nayo isebenzisa i-Ordma (i-Orthogonal Rostincy-Direction Pays
Ukuqonda okuphantsi: Ngokusebenzisa itekhnoloji njenge-I-AGDMA kunye ne-SpatialReseRese, i-Wi FI 6 yenza ukuba abasebenzisi abaninzi badluliselwe kwixesha ngalinye, baphelisa ukhuphiswano, kunye nokunciphisa i-tennecy. Ukusuka kwi-30mms ye-wi fi 5 ukuya kwi-20ms, ngokuncitshiswa kwe-33%.
Ukusetyenziswa kwamandla asezantsi: i-TATT, enye iTekhnoloji entsha kwi-Wi FI 6, ivumela i-AP yokuxoxa ngokunxibelelana neziphelo, ukunciphisa ixesha elifunekayo ukugcina usulelo kunye nokukhangela imiqondiso. Oku kuthetha ukunciphisa ukusetyenziswa kwebhetri kunye nokuphucula ubomi bebhetri, okukhokelela kuncitshiswe nge-30% kuncitshiso lwamandla.

Ukusukela ngo-2012 | Nika iikhompyuter ezisebenza ngokwezithuthi zabathengi behlabathi!