Kwi-IEEE802.11 protocol kwi-WiFi, inani elikhulu lemibuzo yedatha yenziwa, kwaye uphuhliso lwembali lushwankathelwa ngolu hlobo lulandelayo. Esi sishwankathelo silandelayo asiyongxelo ebanzi kunye neneenkcukacha, kodwa yinkcazo yeeprothokholi ezisetyenziswa ngoku kwimarike.
IEEE 802.11, esekwe kwi-1997, ngumgangatho wokuqala (2Mbit / s, usasazwa kwi-2.4GHz). Isantya salo sicotha noko, esibeka isiseko seeprothokholi ezingenazingcingo.
IEEE 802.11a yaqulunqwa ngo-1999. Yenzelwe ukuncedisa umaleko womzimba (54mbit / s kunye nebhendi yefrikhwensi yi-5GHz).
IEEE 802.11b, eyenziwe ngo-1999, yongezelela kwi-2.4GHz umaleko womzimba ocetywayo ngu-11 (11mbit / s, kusasazwa kwi-2.4GHz).
IEEE 802.11g, 2003, isongezelelo somaleko womzimba (54 mbit/s, 2.4GHz broadcast).
IEEE 802.11n. Izinga losulelo liye laphucuka phantsi kwalo mthetho. Izinga elisisiseko linyuswe kwi-72.2 mbit / s, kwaye i-bandwidth ephindwe kabini ye-40 MHz ingasetyenziswa. Ngelo xesha, izinga linyuswe kwi-150 mbit / s. Inkxaso ye-multi-input, multi-output (MIMO) iteknoloji. Le protocol ngokudibeneyo iphucula ibhendi yamaza phakathi kwe-2.4GHz kunye ne-5GHz.
IEEE 802.11ac, umlandeli onokubakho we-802.11n, kukuphucula izinga losulelo oluphezulu. Xa izikhululo zesiseko ezininzi zisetyenzisiweyo, izinga le-wireless linyuswa ubuncinane kwi-1 Gbps kwaye isantya sesiteshi esisodwa sonyuswa ubuncinane kwi-500 Mbps. Sebenzisa i-bandwidth ephezulu engenazingcingo (80 Mhz-160 MHz, xa kuthelekiswa ne-802.11n's 40 MHz), imilambo emininzi ye-MIMO (ukuya kwi-8), kunye nemowudi engcono yokumodareyitha (QAM256). Umgangatho osesikweni waphehlelelwa ngoFebruwari 18, 2012.
Phakathi kwabo, kukho iprotocol ekhethekileyo. Ukongeza kwimigangatho ye-IEEE engentla, enye iteknoloji ebizwa ngokuba yi-IEEE 802.11b + ibonelela ngesantya sothumelo lwedatha ye-22mbit/s esekelwe kwi-IEEE 802.11b (2.4GHz band) ngeteknoloji ye-pBCC.
Oku kungasentla yingcaciso yolwazi yoluhlu olusemgangathweni lwe-IEEE 802.11 eziswe kuweShenzhen HDV Phoelectron Technology Co., Ltd.ndiyathemba ukuba eli nqaku linokukunceda ukwandisa ulwazi lwakho. Ngaphandle kweli nqaku ukuba ujonge inkampani elungileyo yomenzi wezixhobo zonxibelelwano lwefiber onokuthi uyithathele ingqalelongathi.
Iimveliso zonxibelelwano eziveliswe yikhava yenkampani:
Imodyuli: iimodyuli zefiber optical, Iimodyuli ze-Ethernet, iimodyuli ze-fiber optical transceiver,Iimodyuli ze-SSFP ezibonakalayo, kwayeI-SFP optical fibers, njl.
I-ONUudidi: EPON ONU, AC ONU, ifayibha optical ONU, CATV ONU, GPON ONU, XPON ONU, njl.
OLTiklasi: Ukutshintsha OLT, GPON OLT, EPON OLT, unxibelelwanoOLT, njl.
Ezi mveliso zingentla zinokuxhasa iimeko ezahlukeneyo zenethiwekhi. Kwezi mveliso zingentla, iqela elinobuchule nelinamandla le-R & D lidityaniswe ukuze libonelele ngenkxaso yobugcisa kubathengi, kwaye iqela leshishini elicingayo nelinobuchwephesha linokubonelela ngeenkonzo ezikumgangatho ophezulu zokubonisana kwabathengi kwangethuba kunye nomsebenzi kamva.
