Izindaba

Iyini i-LAN? I-LAN isho Inethiwekhi Yendawo Yasendaweni. I-LAN imele isizinda sokusakaza, okusho ukuthi wonke amalungu e-LAN azothola amaphakethe okusakaza athunyelwa yinoma yiliphi ilungu. Amalungu e-LAN angakhuluma wodwa futhi angakwazi ukumisa izindlela zawo zokuthi amakhompyutha avela kubasebenzisi abahlukene akhulume nomuntu ngamunye...

Isendlalelo sesixhumanisi sedatha se-WLAN sisetshenziswa njengesendlalelo esiyinhloko sokudluliswa kwedatha. Ukuze uqonde i-WLAN, udinga futhi ukuyazi ngokuningiliziwe. Ngezincazelo ezilandelayo: Kumthetho olandelwayo we-IEEE 802.11, isisekelo saso se-MAC siqukethe izindlela zokufinyelela kwabezindaba ze-DCF ne-PCF: Incazelo ye-DCF: Sabalalisa...

I-PHY, isendlalelo esibonakalayo se-IEEE 802.11, inomlando olandelayo wokuthuthukiswa kobuchwepheshe kanye namazinga obuchwepheshe: IEEE 802 (1997) Ubuchwepheshe bemodulation: ukudluliselwa kwe-infrared ye-FHSS ne-DSSS Operating frequency band: esebenza ku-2.4GHz frequency band (2.42.4835GHz, 83.5MHZ isiyonke...

Kunamabizo amaningi abandakanyeka ku-WLAN. Uma udinga ukuqonda ngokujulile amaphuzu olwazi e-WLAN, udinga ukwenza incazelo egcwele yobungcweti yephuzu ngalinye lolwazi ukuze uqonde lokhu okuqukethwe kalula kakhudlwana esikhathini esizayo. Isiteshi (i-STA, ngamafuphi). 1). Isiteshi (iphuzu), al...

I-WLAN ingachazwa kokubili ngomqondo obanzi nangomqondo omncane: Ngokombono omncane, sichaza futhi sihlaziye i-WLAN ngazo zombili izinzwa ezibanzi neziwumngcingo. Ngomqondo obanzi, i-WLAN iyinethiwekhi eyenziwe ngokufaka enye noma yonke imidiya yokudlulisa ye-LAN enezintambo ngamaza omsakazo, njenge-infrared, l...

I-Constellation ingumqondo oyisisekelo ekushintsheni kwedijithali. Uma sithumela amasignali edijithali, ngokuvamile asithumeli u-0 noma u-1 ngokuqondile, kodwa siqale sakha iqembu lamasignali angu-0 no-1 (amabhithi) ngokuvumelana neyodwa noma ambalwa. Isibonelo, zonke izingcezu ezimbili zakha iqembu, okungukuthi, 00, 01, 10, kanye no-11. Kunezifunda ezine ...