2.4GWiFi imagwira ntchito mu 2.4GHz frequency band, yokhala ndi ma frequency osiyanasiyana a 2400-2483.5MHz.Muyezo waukulu wotsatiridwa ndi wa IEEE802.11b/g/n wopangidwa ndi Institute of Electrical and Electronics Engineers (IEEE).Pansipa, tipereka chidziwitso chatsatanetsatane chamiyezo iyi:
• IEEE802.11 ndi mulingo wa netiweki wamalo opanda zingwe womwe unayambika ndi IEEE, womwe umagwiritsidwa ntchito kwambiri pothana ndi ma waya opanda zingwe kwa ogwiritsa ntchito ndi ma terminals ogwiritsira ntchito muofesi ndi ma netiweki apasukulu.Bizinesiyo imakhala yochepa kwambiri pakupeza deta, ndipo liwiro lalikulu limatha kufika 2Mb / s.Chifukwa chakulephera kwa IEEE 802.11 kukwaniritsa zosowa za anthu potengera liwiro komanso mtunda wotumizira, ukadaulo uwu ndi wachikale.
• Muyezo wa IEEE802.11b, womwe umadziwikanso kuti ukadaulo wopanda zingwe, umagwiritsa ntchito bandi yaulere ya 2.4GHz yodziwika padziko lonse lapansi kuti iwonetse kufalikira kwatsatanetsatane, yokhala ndi bandiwifi ya 83.5MHz komanso kuchuluka kwapa data ku 11Mbps.Njira yotumizira popanda kufalikira kwa mzere ndi mpaka 300 metres panja ndi mpaka mita 100 m'nyumba popanda zopinga, zomwe zimapangitsa kuti ikhale njira yomwe imagwiritsidwa ntchito kwambiri masiku ano.
• IEEE802.11g ndi mulingo wosakanizidwa womwe umagwirizana ndi chikhalidwe cha 802.11b ndipo umapereka mlingo wotumizira deta wa 11Mbps pamphindi pa 2.4GHz.Imatengera matekinoloje otsogola monga kuphatikizika kwamakanema apawiri, komwe kumawonjezera bandwidth yotumizira mawayilesi opanda zingwe mpaka 108Mbps ndipo imatha kupereka kutulutsa kwenikweni kwa TCP/IP kwa 80 mpaka 90Mbps.
• IEEE802.11n imagwiritsa ntchito matekinoloje a MIMO (Multiple In Multiple Out) ndi OFDM (Orthogonal Frequency Division Multiplexing), omwe angawonjezere kuchuluka kwa kufalikira kwa WLAN kuchokera ku 54Mbps yoperekedwa ndi 802.11a yamakono ndi 802.11g mpaka 108Mbps, kapena even upps 60bM, kapena even ups imatha kuthandizira kufalitsa kwamawu ndi makanema apamwamba kwambiri.
| Kuyerekeza kwa 802.11b/g/n miyezo | |||
|
| m'badwo wachiwiri | m'badwo wachitatu | M'badwo wachinai |
| muyezo | IEEE802.11b | IEEE802.11g | IEEE 802.11n |
| njira yosinthira | Mtengo CCK | BPSK, QPSK, 160AM, 64QAM, DBPSK,DQPSK, | BPSK, QPSK, 160AM, 64QAM |
| Mtundu wa encoding | DSSS | OFDM, DSSS | MIMO-OFDM |
| liwiro | 11 Mbps | 54 Mbps | 600Mbps |
| Channel bandwidth | 22MHz | 20MHz | 20, 40MHz |
| Tsiku lovomerezeka
| 1999 | 2003 | 2009 |
| khalidwe | Mtengo wotsika, ambiri miyezo, luso lokhwima ndi mankhwala | Mphamvu zochepakudya, kufala kwa nthawi yayitali mtunda, kulowa mwamphamvu, kufalitsa kochepa, ndi liwiro lalikulu
| Pamene ntchito pa 2.4G, ikhoza kukhala zogwirizana pansi ndi 11b/g
|
Shenzhen Haidwiwei Optoelectronics ndi katswiri wopangaONUzida zowoneka mphaka ndi kulankhulana wanzeruONUOptical mphaka module.Kampani yathu pakadali pano imagulitsa zida zosiyanasiyana zoyankhulirana zolumikizana mmwamba ndi pansi, monga ma transceivers fiber optic, ma switch a Ethernet, zida za OLT Optical mphaka,ONUkuwala mphaka zida, ndi zina zotero.Ngati mukufuna kudziwa zambiri zaukadaulo wolumikizirana, chonde omasuka kulumikizana ndi kampani yathu.