• sales@hdv-tech.com
  • 24H lawelawe pūnaewele:
    • 7189078c
    • sns03
    • 6660e33e
    • youtube 拷贝
    • instagram

    2.4GWiFi Protocol Standard

    Ka manawa kau: Apr-04-2023

    Hoʻohana ʻia ʻo 2.4GWiFi ma ka 2.4GHz frequency band, me kahi alapine o 2400-2483.5MHz.ʻO ka maʻamau nui i ukali ʻia ʻo ka IEEE802.11b/g/n maʻamau i hoʻomohala ʻia e ka Institute of Electrical and Electronics Engineers (IEEE).Ma lalo, e hāʻawi mākou i kahi hoʻolauna kikoʻī i kēia mau kūlana:

    • ʻO IEEE802.11 kahi maʻamau o ka uea i hoʻokumu ʻia e IEEE, i hoʻohana nui ʻia no ka hoʻoponopono ʻana i ke ala uila no nā mea hoʻohana a me nā mea hoʻohana ma ka keʻena a me ka pā kula.Ua kaupalena ʻia ka ʻoihana i ka loaʻa ʻana o ka ʻikepili, a hiki i ka wikiwiki kiʻekiʻe ke hiki i 2Mb/s.Ma muli o ka hiki ʻole o IEEE 802.11 ke hoʻokō i nā pono o nā kānaka ma ke ʻano o ka wikiwiki a me ka mamao o ka hoʻouna ʻana, ua pau kēia ʻenehana.

    • Hoʻohana ka IEEE802.11b maʻamau, ʻike ʻia hoʻi ʻo ka ʻenehana fidelity uʻi ʻole, i ʻike ʻia ma ke ao holoʻokoʻa ʻo 2.4GHz manuahi manuahi no ka hoʻolaha ʻana o ke kaʻina kikoʻī pololei, me ka bandwidth o 83.5MHz a me ka nui o ka lawe ʻana i ka ʻikepili he 11Mbps.ʻO ka laina hoʻouna me ka hoʻolaha laina ʻole a hiki i 300 mau mika ma waho a hiki i 100 mau mika i loko o ka hale me ka ʻole o ke keakea, e lilo ia i ka protocol hoʻoili uila maʻamau i kēia mau lā.

    • ʻO IEEE802.11g kahi maʻamau hybrid e hoʻololi i ka maʻamau 802.11b maʻamau a hāʻawi i ka helu hoʻoili ʻikepili o 11Mbps i kekona ma 2.4GHz alapine.Hoʻohana ia i nā ʻenehana i hoʻonui ʻia e like me ka puʻupuʻu pālua ʻelua, ka mea e hoʻonui ai i ka bandwidth hoʻouna ala uila i 108Mbps a hiki ke hāʻawi i ka throughput TCP/IP maoli o 80 a 90Mbps.

    • Hoʻohana ʻo IEEE802.11n i nā ʻenehana MIMO (Multiple In Multiple Out) a me OFDM (Orthogonal Frequency Division Multiplexing), hiki ke hoʻonui i ka wikiwiki o ka hoʻouna ʻana o WLAN mai 54Mbps i hāʻawi ʻia e 802.11a a me 802.11g i kēia manawa i 108Mbps, a i ʻole 600Mbps, a. hiki ke kākoʻo i ka leo kiʻekiʻe a me ka hoʻoili wikiō.

    Hoʻohālikelike i nā kūlana 802.11b/g/n

     

    hanauna lua

    hanauna ekolu

    ʻEhā hanauna

    maʻamau

    IEEE802.11b

    IEEE802.11g

    IEEE 802.11n

    ʻenehana hoʻololi

    CCK

    BPSK,QPSK,160AM,

    64QAM,

    DBPSK, DQPSK,

    BPSK,QPSK,160AM, 64QAM

    ʻAno hoʻopāpā

    DSSS

    OFDM,DSSS

    MIMO-OFDM

    ka māmā holo

    11Mbps

    54Mbps

    600Mbps

    Kanal bandwidth

    22MHz

    20MHz

    20,40MHz

     

    La aponoia

     

    1999

    2003

    2009

    hiʻona

    Kumukuai haahaa,

    mainstream

    nā kūlana,

    ʻenehana makua

    a me nā huahana

     Mana haʻahaʻa haʻahaʻaʻai,

    lawe lōʻihi

    mamao,

    komo ikaika,

    uhi liʻiliʻi,

    a me ka wikiwiki kiʻekiʻe

     

     I ka hana ana ma

    2.4G, hiki ke

    kūpono

    ilalo

    me 11b/g

     

    He mea hana ʻoihana ʻo Shenzhen Haidiwei OptoelectronicsONUlako popoki optical a me ke kamaʻilio naʻauaoONUmodula popoki optical.Ke kūʻai aku nei kā mākou hui i nā lako kamaʻilio like ʻole me nā pili i luna a i lalo, e like me ka fiber optic transceivers, Ethernet switch, OLT optical cat equipment,ONUlako popoki optical, a pela aku.Inā makemake ʻoe e aʻo hou aʻe e pili ana i ka ʻike ʻenehana kamaʻilio, e ʻoluʻolu e kelepona i kā mākou hui.



    pūnaewele聊天