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    He 2.4G WiFi Protocol Standard

    Ka manawa hoʻouna: Mei-06-2022

    Hoʻohana ʻo 2.4G WiFi i ka hui 2.4GHz me kahi laina 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 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 ka nui o ka hoʻouna ʻana he 300 mika 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 uila i hoʻohana ʻia i kēia manawa.
    • ʻO IEEE802.11g kahi maʻamau hybrid e hoʻololi i ka maʻamau 802.11b maʻamau a hāʻawi i nā helu hoʻoili ʻikepili o 11Mbps i kekona ma 2.4GHz. Hoʻohana ʻo 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 ʻenehana MIMO (multi-in and multi-out) a me OFDM (orthogonal frequency division multiplexing), 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

     

    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

    He loea ʻo Shenzhen HDV Photoelectron Technology LtdONU/ ʻO ka mea hana mea hana ONT he kamaʻilio naʻauao hoʻiONUʻO ka mea hana module, ke kūʻai aku nei kā mākou hui i nā ʻano mea like ʻole o luna a lalo, e like me, Fiber Media Converter, Ethernethoʻololi, OLTmea lako,ONUmea lako a pela aku. 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.



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