Site na Admin / 26 Ọkt 22 /0Okwu WLAN Data Njikọ Layer A na-eji oyi akwa njikọ data nke WLAN dị ka oyi akwa isi maka nnyefe data. Iji ghọta WLAN, ịkwesịrị ịma ya nke ọma. Site na nkọwa ndị a: Na protocol nke IEEE 802.11, MAC sublayer nwere usoro ịnweta mgbasa ozi nke DCF na PCF: Pụtara DCF: Kesaa... GỤKWUO Site na Admin / 25 Ọkt 22 /0Okwu WLAN anụ ahụ oyi akwa PHY PHY, oyi akwa anụ ahụ nke IEEE 802.11, nwere akụkọ ihe mere eme nke mmepe teknụzụ na ụkpụrụ teknụzụ: IEEE 802 (1997) teknụzụ mgbanwe: nnyefe infrared nke FHSS na DSSS bandwit na-arụ ọrụ: na-arụ ọrụ na bandwit ugboro 2.4GHz (2.42.4835GHz, 83.5MHZ na mkpokọta ... GỤKWUO Site na Admin / 24 Ọkt 22 /0Okwu Usoro WLAN Enwere ọtụtụ aha na-etinye aka na WLAN. Ọ bụrụ na ịchọrọ ịghọta nke ọma isi ihe ọmụma nke WLAN, ịkwesịrị ịme nkọwa ọkachamara zuru oke nke ihe ọmụma ọ bụla ka i wee ghọta ọdịnaya a n'ụzọ dị mfe n'ọdịnihu. Ọdụ (STA, maka mkpụmkpụ). 1). Ebe ọdụ (point), al... GỤKWUO Site na Admin / 23 Ọkt 22 /0Okwu Akụkọ ihe mere eme nke WLAN Enwere ike ịkọwa WLAN n'echiche sara mbara na n'echiche dị warara: Site n'echiche micro, anyị na-akọwapụta ma nyochaa WLAN n'echiche sara mbara ma dị warara. N'echiche sara mbara, WLAN bụ netwọk emere site na iji ebili mmiri redio dochie ụfọdụ ma ọ bụ niile nke wired mgbasa ozi LAN, dị ka infrared, l... GỤKWUO Site na Admin / 21 Ọkt 22 /0Okwu Nkọwa zuru oke gbasara nkwukọrịta data na netwọkụ kọmputa Iji ghọta nkwurịta okwu data na netwọk dị mgbagwoju anya. N'isiokwu a, m ga-adị mfe igosi ka kọmputa abụọ na-esi ejikọta ibe ha, nyefee ma nweta ozi data na Tcp/IP ise oyi akwa protocol. Kedu ihe bụ nkwukọrịta data? Okwu "nkwukọrịta data" i... GỤKWUO Site na Admin / 19 Ọkt 22 /0Okwu Ọdịiche dị n'etiti njikwa njikwa Vs enweghị njikwa yana nke ị ga-azụta? Mgbanwe ejiri achịkwa dị elu karịa ndị anaghị ejikwa ya n'ihe gbasara ọrụ, mana ha na-eme ka ọkachamara nke onye nchịkwa ma ọ bụ injinia ghọta nke ọma ikike ha nwere. A na-eme ka njikwa netwọkụ na okpokolo agba data ha kwe omume site na iji mgba ọkụ ejiriziri. N'akụkụ aka nke ọzọ, ... GỤKWUO << < gara aga123456Ọzọ >>> Peeji nke 3/47