I-2.4GWiFi isebenza kubhendi yefrikhwensi engu-2.4GHz, ngebanga lefrikhwensi engu-2400-2483.5MHz.Izinga eliyinhloko elilandelwayo yizinga le-IEEE802.11b/g/n elithuthukiswe yi-Institute of Electrical and Electronics Engineers (IEEE).Ngezansi, sizonikeza isingeniso esinemininingwane kulawa mazinga:
• I-IEEE802.11 indinganiso yenethiwekhi yendawo engenantambo eyasungulwa ekuqaleni yi-IEEE, ikakhulukazi esetshenziselwa ukuxazulula ukufinyelela okungenantambo kubasebenzisi namatheminali abasebenzisi kumanethiwekhi ehhovisi nekhampasi.Ibhizinisi lilinganiselwe ngokuyinhloko ekufinyeleleni idatha, futhi isivinini esiphezulu singafinyelela kuphela ku-2Mb/s.Ngenxa yokungakwazi kwe-IEEE 802.11 ukuhlangabezana nezidingo zabantu mayelana nesivinini nebanga lokudlulisela, lobu buchwepheshe buphelelwe yisikhathi.
• Izinga le-IEEE802.11b, elibuye laziwe ngokuthi ubuchwepheshe be-wireless fidelity, lisebenzisa ibhendi yefrikhwensi yamahhala engu-2.4GHz eyaziwa emhlabeni wonke ukuze uthole i-spectrum yokusabalalisa okulandelanayo okuqondile, enomkhawulokudonsa ongu-83.5MHz kanye nezinga eliphezulu lokudluliswa kwedatha elingu-11Mbps.Ibanga lokudluliswa ngaphandle kokusakazwa ngomugqa lingafika kumamitha angama-300 ngaphandle futhi lifike kumamitha ayi-100 ngaphakathi endlini ngaphandle kwezithiyo, okulenza libe iphrothokholi yokudlulisa okungenantambo esetshenziswa kakhulu namuhla.
• I-IEEE802.11g iyindinganiso eyingxube evumelana nezinga le-802.11b evamile futhi inikeza izinga lokudlulisa idatha elingu-11Mbps ngesekhondi ku-2.4GHz.Yamukela ubuchwepheshe obuthuthukisiwe obufana nokuhlanganisa iziteshi ezikabili, okwandisa umkhawulokudonsa wokudluliswa kweziteshi ezingenantambo ukuya ku-108Mbps futhi ingahlinzeka ngokuphuma kwangempela kwe-TCP/IP okungu-80 kuya ku-90Mbps.
• I-IEEE802.11n isebenzisa ubuchwepheshe be-MIMO (Multiple In Multiple Out) kanye ne-OFDM (Orthogonal Frequency Division Multiplexing), obungakhuphula izinga lokudlulisela le-WLAN lisuka ku-54Mbps elihlinzekwe ngu-802.11a wamanje no-802.11g kuya ku-108Mbps, noma ngisho nokukhuphuka kwe-Mb 60 ingasekela ukudluliswa kwezwi nevidiyo kwekhwalithi ephezulu.
| Ukuqhathaniswa kwamazinga angu-802.11b/g/n | |||
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| isizukulwane sesibili | isizukulwane sesithathu | Isizukulwane sesine |
| ejwayelekile | IEEE802.11b | IEEE802.11g | IEEE 802.11n |
| i-modulation technique | I-CCK | I-BPSK, QPSK, 160AM, 64QAM, DBPSK,DQPSK, | BPSK, QPSK, 160AM, 64QAM |
| Uhlobo lombhalo wekhodi | I-DSSS | OFDM,DSSS | I-MIMO-OFDM |
| isivinini | 11Mbps | 54Mbps | 600Mbps |
| Umkhawulokudonsa wesiteshi | 22MHz | 20MHz | 20, 40MHz |
| Idethi yokugunyaza
| 1999 | 2003 | 2009 |
| isici | Izindleko eziphansi, ejwayelekile amazinga, ubuchwepheshe obuvuthiwe kanye nemikhiqizo | Amandla aphansi uma kuqhathaniswaukusetshenziswa, ukudluliswa okude ibanga, ukungena okuqinile, ukufakwa okuncane, kanye nesivinini esikhulu
| Lapho usebenza ku 2.4G, kungaba ehambisanayo phansi nge 11b/g
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I-Shenzhen Haidwiwei Optoelectronics ingumkhiqizi ochwepheshe weI-ONUimishini yekati ye-optical kanye nokuxhumana okuhlakaniphileI-ONUoptical cat module.Inkampani yethu njengamanje ithengisa imishini yezokuxhumana ehlukahlukene enokuxhumana okuphezulu naphansi, okufana nama-fiber optic transceivers, amaswishi e-Ethernet, imishini yekati ye-OLT optical,I-ONUoptical cat imishini, nokunye.Uma ungathanda ukufunda okwengeziwe ngolwazi lobuchwepheshe bezokuxhumana, sicela ukhululeke ukuxhumana nenkampani yethu.