Ukwenza i-Sense yeMigomo ehlukile ye-WiFi Protocol
I-WiFi ubuchwepheshe obungenawaya ngobuhle kumanethiwekhi wendawo. Kunzima ukucabanga nge-smartphone yakho, PC tablet, router, repeater noma enye idivayisi yeselula noma ideskithophu ngaphandle kokuba i-WiFi inikwe amandla. Sithungatha izintambo zika- Ethernet kancane kancane.
Enye yezinto zokuqala esiziqinisekisayo ezimisweni ngaphambi kokuthenga idivayisi yeselula kungakhathaliseki ukuthi isekela i-WiFi ngoba ivulela umnyango wokufaka, ukukhishwa kwezibuyekezo, ukubuyekezwa nokuxhumana, izinto ngaphandle kokuthi leyo divayisi ingaba yize. Kodwa kunokwanele ukuhlola nje i-WiFi? Ukuze wazi kabanzi mayelana nokufaneleka kwe-WiFi, ukulinganiselwa, nezinzuzo, funda le ncazelo .
Ezimweni eziningi, yebo, kodwa uma kuziwa kwihadiwe ethize njengeziphindaphindiwe nama-routers, kuhle ukuhlola izinguqulo ze-WiFi.
Ukuhambisana Phakathi kwamazinga we-WiFi
Iphoyinti lokufinyelela elidala i- hotspot ye-WiFi , njenge-router, kanye nedivayisi yokuxhuma, idinga ukuthi ibe nezinguqulo ezifanayo zokuxhumana nokudluliselwa empumelelweni. Iphumelela cishe kuwo wonke amacala ngoba kukhona ukuhambisana okubuyela emuva, kodwa inkinga ibhekene nokulinganiselwa. Isibonelo, uma unayo i-Samsung Galaxy yakamuva esekela inguqulo yakamuva ye-WiFi, ilungele ukungena ngesivinini ku-gigabits ngomzuzwana, kodwa ukuyixhumanisa nenethiwekhi enephuzu lokufinyelela elisekela i-WiFi engumdala neyasheshayo, ukukhanya kwakho I-smartphone ngeke ibe ngcono kunanoma iyiphi enye ifoni ngokuya ngesivinini sokuxhuma.
I-WiFi isebenza nge-frequency spectrum emibili - 2.4 GHz no-5 GHz. Lezi zinsuku zinikeza ububanzi obuningi futhi bukhubazekile, ngakho-ke ukuxhumana okusheshayo, kodwa kunokwethenjelwa okungaphansi kunakuqala. Uma ngabe idivaysi esebenza ku-spectrum yokuqala izama ukuxhuma komunye osebenza ku-second spectrum kuphela, ukuxhumana ngeke kuphumelele. Ngenhlanhla, amadivaysi amaningi anamuhla asebenza kokubili ama-spectra.
Ngakho-ke, kungenzeka ukuthi unakho i-hardware enhle kanye nesofthiwe yokuxhuma okusheshayo, kodwa okuyinto ephuthumayo neyencane yezinga eliphezulu kuphela ngenxa yokungahambisani okuthile endaweni ethile, lapho kungenzeka ukuthi ufuna ukushintsha ezinye izilungiselelo, noma ushintshe i-adaptha noma idivayisi.
Amazinga we-WiFi Nezici Zabo
I-WiFi ibizwa ngokuthi yi- protocol 802.11. Izindinganiso ezihlukene ezaqhubeka zizayo yonke leminyaka zimelelwe izinhlamvu ezincane njengezilinganiso. Nazi ezinye:
802.11 - Inguqulo yokuqala eyasungulwa ngo-1977. Manje ayisasetshenzisiwe. Isebenza ku-2.4 GHz.
I-802.11a - Isebenza ku-5GHz. Ukusheshisa ama-54 Mbps. Kunenkinga yokudlula izithiyo, ngakho-ke inezinhlobo ezimbi.
I-802.11b - Isebenza ku-2.4Ghz ethembekile futhi inika kufika ku-11 Mbps. Le nguqulo yafika lapho i-WiFi iqhuma ekudumeni.
I-802.11g - Kukhishwe ngo-2003. Noma kunjalo, isebenza nge-2.4GHz ethembekile, kodwa yandisa ijubane eliphezulu ukuya ku-54 Mbps. Kuyinto engcono kakhulu kulezi zinguqulo zakuqala ze-WiFi ngaphambi kokunyuka okukhulu okuzayo ukuza ngo-2009. Amadivaysi amaningi asaqhubeka nale nguqulo ngempumelelo ngoba engabizi ukuyiqalisa.
I-802.11n - Izinguquko ezinkampanini zobuchwepheshe kanye nezinhlelo zokudlulisela zikhulisa ijubane kuze kube ngu-600 Mbps, nezinye izinzuzo.
I-802.11ac - Ukuthuthukiswa kwezinga elidlule, ukwenza ngcono ukusetshenziswa kwe-spectrum engu-5Ghz, nokunikeza ngesivinini kahle ngaphezu kwe-1 Gbps.
I-802.11ax - Lokhu kuthuthukisa i-802.11ac ukwandisa ukuphindaphindiwe kwejubane, ngokweqile kuyafinyelela ku-10 Gbps. Futhi kwandisa ukusebenza kwama-WLAN.