Hoʻohana ʻo 2.4G WiFi i ka pūʻali 2.4GHz me kahi alapine hana o 2400 ~ 2483.5MHz. ʻO ka maʻamau nui i ukali ʻia ʻo ka IEEE802.11b / g / n maʻamau i hoʻonohonoho ʻia e IEEE (Association of Electrical and Electronics Engineers). kikoʻī:
- ʻO IEEE802.11 kahi maʻamau LAN uea i hoʻokumu mua ʻia e IEEE.Hoʻohana nui ʻia ia e hoʻoponopono i ke ala uila i nā mea hoʻohana a me nā mea hoʻohana ma nā keʻena LAN a me nā pūnaewele pā kula.Hoʻopili ʻia ka lawelawe i ka loaʻa ʻana o ka ʻikepili, me ka nui o ka 2Mb / s.
- ʻO ka maʻamau IEEE802.11b, i ʻike ʻia ʻo ka ʻenehana pono ʻole, hoʻohana i ka 2.4GHz manuahi manuahi i hoʻoponopono ʻia ma waena o ka honua no ka hoʻonui ʻana i ke kaʻina pololei, me ka laulā 83.5MHz a me ka helu kiʻekiʻe o ka lawe ʻana i ka ʻikepili o 11Mbps. ʻO 300 mika ka nui o ka hoʻouna ʻana ma waho a me 100. mika i loko o ka hale me ka ʻole o ke komo ʻana i loko, ʻo ia ka protocol hoʻouna kelepona ʻole i hoʻohana ʻia i kēia manawa.
- ʻO IEEE802.11g kahi maʻamau hybrid e hoʻopili ana i ka maʻamau 802.11b maʻamau a hāʻawi i nā helu hoʻoili ʻikepili o 11Mbps i kekona ma 2.4GHz. Hoʻohana ia i nā ʻenehana hoʻonui e like me ka puʻupuʻu pālua-kanal, kahi e hoʻomaikaʻi ai i ka bandwidth transmission channel wireless i 108Mbps a hiki ke hiki. hāʻawi i kahi TCP / IP maoli ma waena o 80 a me 90Mbps.
- Hoʻohana ʻo IEEE802.11n i ka MIMO (multi-in and multi-out) a me OFDM (orthogonal frequency division multiplexing) ʻenehana, hiki ke hoʻomaikaʻi i ka wikiwiki o ka hoʻouna ʻana o WLAN mai ka 54Mbps o kēia manawa i hāʻawi ʻia e 802.11a a me 802.11g i 108Mbps, a hiki i 600Mbps. , a hiki ke kākoʻo i ka hoʻoili leo a me ka wikiō kiʻekiʻe.
| He Hoʻohālikelike o nā pae hoʻohālike 802.11b/g/n | |||
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| hanauna lua | hanauna ekolu | ʻO ka hā o ka hanauna |
| maʻamau | IEEE802.11b | IEEE802.11g | IEEE 802.11n |
| ʻenehana hoʻololi | CCK | BPSK,QP SK,160AM, 64QAM,DBPSK,DQPSK, | BPSK,QPSK,160AM, 64QAM |
| ʻAno hoʻopāpā | DSSS | OFDM，DSSS | MIMO-OFDM |
| ka māmā holo | 11Mbps | 54Mbps | 600Mbps |
| kaila bandwidth | 22MHz | 20MHz | 20,40MHz |
| La aponoia | 1999 | 2003 | 2009 |
| hiʻona | Haʻahaʻa kumu kūʻai, mainstream nā kūlana, ʻenehana a me nā huahana oo | Ka mana pili haʻahaʻa ʻai, lōʻihi mamao hoʻouna, ikaika ikaika komo, liilii uhi, kiʻekiʻe | Iho-kulike me 11b / g ke hana ma 2.4G |
ʻO Shenzhen HDV Photoelectron Technology Ltd. he mea hana ʻoihana ONU / ONT mea hana no ka kamaʻilio naʻauao ONU module mea hana, ke kūʻai aku nei kā mākou hui i nā ʻano mea like ʻole o luna a lalo, e like me, Fiber Media Converter, Ethernet switch, OLT lako, ONU lako. a laila.Inā makemake ʻoe e ʻike hou aku e pili ana i ka ʻenehana kamaʻilio, e ʻoluʻolu e kelepona mai iā mākou i kēlā me kēia manawa.