Kei te mahi a 2.4GWiFi i roto i te roopu auau 2.4GHz, me te awhe auau o 2400-2483.5MHz.Ko te paerewa matua e whai ake nei ko te paerewa IEEE802.11b/g/n i hangaia e te Institute of Electrical and Electronics Engineers (IEEE).Kei raro iho nei, ka whakaratohia e matou he korero whakataki mo enei paerewa:
• Ko te IEEE802.11 he paerewa whatunga rohe ahokore i hangaia i te tuatahi e IEEE, i whakamahia te nuinga ki te whakaoti i te uru ahokore mo nga kaiwhakamahi me nga waahi kaiwhakamahi i roto i nga whatunga tari me te puni.He iti noa te pakihi ki te uru ki nga raraunga, a ko te tere teitei ka tae ki te 2Mb/s anake.Na te kore e taea e te IEEE 802.11 te whakatutuki i nga hiahia o te tangata mo te tere me te tawhiti tuku, kua tawhito tenei hangarau.
• Ko te paerewa IEEE802.11b, e mohiotia ana ko te hangarau pono ahokore, e whakamahi ana i te 2.4GHz kore utu a-ao e mohiotia ana mo te awhiowhiotanga horahanga raupapa tika, me te bandwidth o 83.5MHz me te reeti tuku raraunga teitei o te 11Mbps.Ko te awhe tuku karekau he toronga raina ka eke ki te 300 mita ki waho me te 100 mita ki roto karekau he arai, na reira ko te kawa tuku ahokore e whakamahia nuitia ana i enei ra.
• Ko te IEEE802.11g he paerewa ranu e urutau ana ki te paerewa 802.11b tuku iho me te whakarato i te tere whakawhiti raraunga o te 11Mbps ia rua i te auau 2.4GHz.Ka tango i nga hangarau whakarei penei i te paihere hongere rua, e whakanui ana i te bandwidth whakawhiti hongere ahokore ki te 108Mbps ka taea te tuku TCP/IP tuuturu o te 80 ki te 90Mbps.
• Ka whakamahi a IEEE802.11n i nga hangarau MIMO (Multiple In Multiple Out) me te OFDM (Orthogonal Frequency Division Multiplexing), ka taea te whakanui ake i te tere tuku o WLAN mai i te 54Mbps e whakaratohia ana e 802.11a me 802.11g o naianei ki te 108Mbps, tae atu ki te 600Mbps, me te 600Mbps, ka taea te tautoko i te reo me te tuku ataata kounga teitei.
| Te whakataurite o nga paerewa 802.11b/g/n | |||
|
| whakatupuranga tuarua | whakatupuranga tuatoru | Whakatupuranga tuawha |
| paerewa | IEEE802.11b | IEEE802.11g | IEEE 802.11n |
| tikanga whakarereke | CCK | BPSK,QPSK,160AM, 64QAM, DBPSK,DQPSK, | BPSK,QPSK,160AM, 64QAM |
| Momo whakawaehere | DSSS | OFDM，DSSS | MIMO-OFDM |
| tere | 11Mbps | 54Mbps | 600Mbps |
| hongere hōkaiipurangi | 22MHz | 20MHz | 20,40MHz |
| Te ra whakaaetanga
| 1999 | 2003 | 2009 |
| āhuatanga | Utu iti, auraki paerewa, hangarau pakeke me nga hua | He iti te manakai, tuku roa tawhiti, te urunga kaha, kapi iti, me te tere tere
| I te wa e mahi ana i 2.4G, ka taea hototahi whakararo me te 11b/g
|
Ko Shenzhen Haidiwei Optoelectronics he kaihanga ngaio oONUtaputapu ngeru whatu me te whakawhitiwhiti whakaaro mohioONUkōwae ngeru whatu.I tenei wa ka hokona e to taatau kamupene nga momo taputapu whakawhitiwhiti korero me nga hononga ki runga me raro, penei i nga whakawhiti muka whatu, nga whakawhiti Ethernet, nga taputapu ngeru OLT optical,ONUtaputapu ngeru whatu, me te aha.Mena kei te pirangi koe ki te ako atu mo te matauranga hangarau korero, tena koa waea mai ki ta matou kamupene.