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    2.4GWiFi Protocol Standard

    Taimi meli: Apr-04-2023

    2.4GWiFi o lo'o fa'agaoioia i le 2.4GHz frequency band, fa'atasi ai ma le fa'asologa ole 2400-2483.5MHz. O le tulaga autu o loʻo mulimulitaʻia o le IEEE802.11b/g/n faʻataʻatiaina e le Inisetiute o Eletise ma Eletise Inisinia (IEEE). Lalo, o le a matou tuʻuina atu se faʻamatalaga auiliili i nei tulaga:

    • O le IEEE802.11 ose tulaga fa'apitonu'u fa'apitonu'u uaealesi na fa'avaeina e le IEEE, e masani ona fa'aoga e foia ai le fa'aogaina o feso'ota'iga uaealesi mo tagata fa'aoga ma fa'aoga fa'aoga ile ofisa ma le lotoa. Ole pisinisi e fa'atapula'a ile mauaina o fa'amatalaga, ma ole saoasaoa maualuga e mafai ona o'o ile 2Mb/s. Ona o le le mafai e le IEEE 802.11 ona faʻafetaui manaʻoga o tagata i tulaga o le saoasaoa ma le mamao o le felauaiga, o lenei tekinolosi ua tuai.

    • O le tulaga IEEE802.11b, e taʻua foi o tekinolosi faʻamaoni uaealesi, faʻaaogaina le faʻasalalauga faʻasalalau faʻavaomalo 2.4GHz mo le faʻasologa saʻo o alaleo faʻasalalau, faʻatasi ai ma le bandwidth o le 83.5MHz ma le maualuga o faʻasalalauga faʻamatalaga o le 11Mbps. O le laina fa'asalalau e aunoa ma le fa'asalalauina laina e o'o atu i le 300 mita i fafo ma e o'o atu i le 100 mita i totonu e aunoa ma ni fa'alavelave, ma avea ai ma fa'aoga fa'aoga uaealesi i aso nei.

    • IEEE802.11g o se fa'asologa tu'ufa'atasi e fa'afetaui i le fa'aleaganu'u masani 802.11b ma tu'uina atu le fa'aliliuga o fa'amatalaga o le 11Mbps i le sekone i le 2.4GHz taimi. Na te faʻaaogaina tekinolosi faʻaleleia e pei o le faʻapipiʻiina o alalaupapa lua, lea e faʻateleina ai le bandwidth faʻasalalau alalaupapa i le 108Mbps ma e mafai ona maua ai le TCP/IP moni ole 80 i le 90Mbps.

    • IEEE802.11n faʻaaogaina MIMO (Multiple In Multiple Out) ma OFDM (Orthogonal Frequency Division Multiplexing) tekinolosi, lea e mafai ona faʻateleina le saoasaoa o le WLAN mai le 54Mbps e tuʻuina atu e le 802.11a ma le 802.11g i le taimi nei i le 108Mbps, pe oʻo lava i le 600Mbps, ma e mafai ona lagolagoina leo maualuga ma felauaiga vitio.

    Fa'atusatusaga 802.11b/g/n fa'ata'ita'iga

     

    tupulaga lona lua

    tupulaga lona tolu

    Tulaga fa

    tulaga faatonuina

    IEEE802.11b

    IEEE802.11g

    IEEE 802.11n

    faiga fa'aopoopo

    CCK

    BPSK,QPSK,160AM,

    64QAM,

    DBPSK,DQPSK,

    BPSK,QPSK,160AM, 64QAM

    Ituaiga fa'ailoga

    DSSS

    OFDM, DSSS

    MIMO-OFDM

    saoasaoa

    11Mbps

    54Mbps

    600Mbps

    Auala fa'alava

    22MHz

    20MHz

    20,40MHz

     

    Aso fa'amaonia

     

    1999

    2003

    2009

    uiga

    tau maualalo,

    masani

    tulaga,

    tekinolosi matua

    ma oloa

     Manatu maualalotaumafa,felauaiga umi

    mamao,

    fa'atosina malosi,

    la'ititi la'ititi,

    ma le saoasaoa maualuga

     

     A o galue i

    2.4G, e mafai

    fetaui

    i lalo

    ma le 11b/g

     

    Shenzhen Haidiwei Optoelectronics o se gaosiga faʻapolofesa oONUmasini pusi opitika ma fesootaiga atamaiONUpusi opitika module. O la matou kamupani o loʻo faʻatau atu nei masini fesoʻotaʻiga eseese ma luga ma lalo fesoʻotaʻiga, e pei o fiber optic transceivers, Ethernet switch,OLTmeafaigaluega pusi mata,ONUmeafaigaluega pusi mata, ma isi. Afai e te manaʻo e aʻoaʻo atili e uiga i fesoʻotaʻiga tekonolosi malamalama, faʻamolemole lagona le saoloto e faʻafesoʻotaʻi la matou kamupani.



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