I-PHY, umaleko womzimba we-IEEE 802.11, unembali elandelayo yophuhliso lwetekhnoloji kunye nemigangatho yobugcisa:
IEEE 802 (1997)
Itekhnoloji yokumodareyitha: ukuhanjiswa kwe-infrared ye-FHSS kunye ne-DSSS
Operating frequency band: esebenza kwi-2.4GHz frequency band (2.42.4835GHz, 83.5MHZ iyonke, yahlulwe ngamajelo ali-13 (5MHZ phakathi kwamajelo akufutshane), itshaneli ngalinye libalelwa ku-22MHz. amajelo adibanayo [1 6 11 okanye 2 7 12 okanye 3 8 13])
Izinga lothumelo: Ngeli xesha, izinga lothumelo licotha noko kwaye idatha ilinganiselwe.Ingasetyenziselwa kuphela iinkonzo zokufikelela kwedatha, kwaye izinga eliphezulu lokuhambisa liyi-2 Mbps.
Ukuhambelana: ayihambelani.
IEEE 802.11a (1999)
Itekhnoloji yohlengahlengiso: yaziswa ngokusesikweni (OFDM) ubuchwepheshe, obubizwa ngokuba yi-orthogonal frequency division multiplexing (OFDM).
Operating frequency band: ngeli xesha, isebenza kwi 5.8GHz frequency band (5.725G5.85GHz, 125MHz iyonke, yahlulahlulwe yazitshaneli ezintlanu, itshaneli nganye akhawunti 20MHz, kwaye itshaneli ezikufutshane musa ukudlula omnye komnye, oko kukuthi, xa amajelo asetyenziswa ngaxeshanye, la matshaneli mahlanu awahambelani).
Izinga lokudluliselwa: xa izinga lokudluliselwa linyuka, li-54, 48, 36, 24, 18, 12, 9, kunye ne-6. Iiyunithi zolu luhlu ziyi-Mbps.
Ukuhambelana: ayihambelani.
IEEE 802.11b (1999)
Itekhnoloji yokumodareyitha: yandisa imowudi ye-IEEE 802.11 DSSS kwaye wamkele indlela yokumodareyitha yeCCK
Ibhendi yefrikhwensi yokusebenza: 2.4GHz
Izinga lokudluliselwa: ukuxhasa amaxabiso ahlukeneyo e-11 Mbps, 4.5 Mbps, 2 Mbps, kunye ne-1 Mbps
Ukuhambelana: Qala ukuhambelana nokuhla kunye ne-IEEE 802.11
IEEE 802.11g (2003)
Itekhnoloji yokumodareyitha: ukwazisa iteknoloji ye-orthogonal frequency division multiplexing (OFDM).
Ibhendi yefrikhwensi yokusebenza: 2.4GHz
Izinga lothumelo: qaphela ubuninzi bezinga logqithiso lwedatha ye-54 Mbps
Ukuhambelana: Iyahambelana ne-IEEE 802.11/IEEE 802.11b
IEEE 802.11n (2009)
Itekhnoloji yokumodareyitha: ukwazisa itekhnoloji ye-orthogonal frequency division multiplexing (OFDM) + iteknoloji yokufaka ezininzi/iziphumo ezininzi (MIMO)
Ibhendi yamaza okusebenza: 2.4G okanye 5.8GHz
Izinga lokudluliselwa: isantya sothumelo lwedatha sinokuya kuthi ga kwi-300 ~ 600Mbps
Ukuhambelana: Iyahambelana ne-IEEE 802.11/IEEE 802.11b/IEEE 802.11a
Oku ngasentla yinkqubo yembali ye-IEEE802 protocol, engenzima ukuyifumana.Le protocol ibandakanya zombini iibhendi ze-2.4G kunye ne-5G.Ngaphezu koko, ngophuhliso lwembali kunye nokuhlaziywa rhoqo kweprotocol, izinga liphuhlisa phezulu.Okwangoku, isantya esiphezulu se-theory ye-2.4G band sinokufikelela kwi-300Mbps, kwaye ukurekhoda kwesantya esiphezulu se-5G band kunokufikelela kwi-866Mbps.
Isishwankathelo: Iiprothokholi ezixhaswa yi-2.4GWiFi zezi: 11, 11b, 11g, kunye ne-11n.
Iiprothokholi ezixhaswa yi-5GWiFi yi-11a, 11n, kunye ne-11ac.
Oku kungentla yingcaciso yolwazi lweWLAN Physical Layer PHY eziswe kuwe nguShenzhen Haidiwei Optoelectronics Technology Co., Ltd. I-Shenzhen Haidiwei Optoelectronics Technology Co., Ltd. ngumenzi okhethekileyo kwizixhobo zonxibelelwano lwamehloiimveliso