WiFi yog ib qho thoob ntiaj teb Wireless hauv cheeb tsam network (WLAN) tus qauv, lub npe tag nrho Wireless Fidelity, tseem hu ua IEEE802.11b tus qauv. WiFi yog Ameslikas raws li IEEE802.11 raws tu qauv, luam tawm nyob rau hauv 1997, txhais WLAN MAC txheej thiab lub cev txheej txheem. Ua raws li 802.11 raws tu qauv, ntau cov qauv tau qhia, feem ntau yog IEEE802.11a, IEEE802.11b, IEEE802.11g, thiab IEEE802.11n.
WiFi system muaj pes tsawg leeg:
WiFi yog siv cov cuab yeej sib txuas lus wireless los txuas lub computer
Cov yam ntxwv tseem ceeb ntawm WiFi LAN: tsis siv cov xov tooj sib txuas lus txuas mus rau khoos phis tawj rau lub network,
Network topology:
WiFi tuaj yeem txuas nrog los ntawm kev sib txawv network topologies, thiab nws qhov kev tshawb pom thiab nkag mus rau hauv network kuj muaj nws tus kheej cov cai thiab cov kauj ruam. WiFi wireless networks suav nrog ob hom topology: Infrastructure thiab Ad-hoc.
Ob lub ntsiab lus tseem ceeb:
Chaw nres tsheb (STA): Qhov tseem ceeb tshaj plaws ntawm lub network, txhua lub davhlau ya nyob twg txuas nrog lub wireless network (xws li laptops, PDAs thiab lwm yam khoom siv uas tuaj yeem sib txuas tau), tuaj yeem hu ua qhov chaw. Wireless Access Point (AP): Tus tsim ntawm lub wireless network thiab lub hauv paus ntawm lub network. Qhov nruab nrab wireless router siv hauv tsev lossis chaw ua haujlwm muaj ib qho AP.
Cov saum toj no yog Shenzhen HDV Phoelectron Technology Ltd. coj cov neeg siv khoom txog "WIFI technology Txheej txheem cej luam" kab lus qhia, thiab peb lub tuam txhab yog cov chaw tsim khoom tshwj xeeb ntawm optical network manufacturers, cov khoom lag luam koom nrogONUseries (OLT ONU/ACONU/CATVONU/GPONONU/XPONONU), Optical module series (optical fiber module / Ethernet optical fiber module / SFP optical module),OLTseries (OLTkhoom siv /OLT hloov/optical mivOLT), thiab lwm yam., muaj ntau yam specifications ntawm kev sib txuas lus cov khoom rau cov kev xav tau ntawm txawv scenarios rau network txhawb, txais tos mus tham.