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    2.4GWiFi Protocol Standard

    Nako ea poso: Apr-04-2023

    2.4GWiFi e sebetsa sehlopheng sa maqhubu a 2.4GHz, e nang le maqhubu a 2400-2483.5MHz.Tekanyetso e ka sehloohong e lateloang ke tekanyetso ea IEEE802.11b/g/n e ntlafalitsoeng ke Setsi sa Baenjiniere ba Motlakase le Baenjiniere (IEEE).Ka tlase, re tla fana ka kenyelletso e qaqileng ea litekanyetso tsena:

    • IEEE802.11 ke maemo a marang-rang a sebaka se se nang mohala a qaliloeng ke IEEE, haholo-holo a sebelisetsoang ho rarolla phihlello ea mohala bakeng sa basebelisi le liteishene tsa basebelisi liofising le marangrang a khamphaseng.Khoebo haholo-holo e lekanyelitsoe ho fihlella data, 'me lebelo le phahameng le ka fihla ho 2Mb / s feela.Ka lebaka la ho se khonehe ha IEEE 802.11 ho fihlela litlhoko tsa batho mabapi le lebelo le sebaka sa phetisetso, theknoloji ena e siiloe ke nako.

    • Tekanyetso ya IEEE802.11b, eo hape e tsejwang e le thekenoloji ya wireless fidelity, e sebedisa 2.4GHz free frequency band e tsebahalang boditjhabeng bakeng sa spectrum e phatlaladitsweng ka tatelano e otlolohileng, e nang le bandwidth ya 83.5MHz le sekgahla sa ho fetisa data sa 11Mbps.Sebaka sa phetisetso ntle le ho phatlalatsoa ha mela e fihla ho limithara tse 300 ka ntle le ho fihla ho limithara tse 100 ka tlung ntle le litšitiso, e leng se etsang hore e be eona protocol ea phetisetso ea waelese e sebelisoang haholo kajeno.

    • IEEE802.11g ke hybrid standard e ikamahanyang le maemo a tloaelehileng a 802.11b mme e fana ka sekhahla sa phetisetso ea data ea 11Mbps motsotsoana ho 2.4GHz frequency.E amohela mekhoa e ntlafalitsoeng e kang ho kopanya likanale tse peli, e leng se eketsang sekhahla sa phetiso ea liteishene tse se nang mohala ho fihla ho 108Mbps mme se ka fana ka phepelo ea 'nete ea TCP/IP ea 80 ho isa ho 90Mbps.

    • IEEE802.11n e sebelisa litheknoloji tsa MIMO (Multiple In Multiple Out) le OFDM (Orthogonal Frequency Division Multiplexing), tse ka eketsang sekhahla sa phetisetso ea WLAN ho tloha ho 54Mbps e fanoeng ke 802.11a ea hajoale le 802.11g ho isa ho 108Mbps, kapa even ups 60bM, kapa 60bM e ka tšehetsa phetiso ea lentsoe le video ea boleng bo holimo.

    Papiso ea litekanyetso tsa 802.11b/g/n

     

    moloko oa bobeli

    moloko oa boraro

    Moloko oa bone

    maemo

    IEEE802.11b

    IEEE802.11g

    IEEE 802.11n

    mokhoa oa modulation

    CCK

    BPSK, QPSK, 160AM,

    64QAM,

    DBPSK,DQPSK,

    BPSK, QPSK, 160AM, 64QAM

    Mofuta oa khouto

    DSSS

    OFDM, DSSS

    MIMO-OFDM

    lebelo

    11Mbps

    54Mbps

    600Mbps

    Sekhahla sa bandwidth

    22MHz

    20MHz

    20,40MHz

     

    Letsatsi la tumello

     

    1999

    2003

    2009

    sebopeho

    Theko e tlase,

    mainstream

    maemo,

    theknoloji e holileng

    le lihlahisoa

     Matla a fokolang haholotshebediso,

    phetiso e telele

    sebaka,

    ho kenella ka matla,

    tšireletso e nyane,

    le lebelo le leholo

     

     Ha o sebetsa ho

    2.4G, ho ka ba joalo

    lumellana

    tlase

    ka 11b/g

     

    Shenzhen Haidwiwei Optoelectronics ke setsebi sa moetsi oaONUlisebelisoa tsa katse tsa optical le puisano e bohlaleONUoptical cat module.Khamphani ea rona hajoale e rekisa lisebelisoa tse fapaneng tsa puisano tse nang le likhokahano tse holimo le tlase, joalo ka li-transceivers tsa fiber optic, li-switch tsa Ethernet, lisebelisoa tsa OLT optical cat,ONUlisebelisoa tsa katse tsa optical, joalo-joalo.Haeba u batla ho tseba haholoanyane ka tsebo ea theknoloji ea puisano, ka kopo ikutloe u lokolohile ho ikopanya le k'hamphani ea rona.



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