802.11n idinga ukuchazwa ngokwehlukana.Njengamanje, imakethe evamile isebenzisa le nqubo yokudlulisa i-WiFi.
I-802.11n iyiphrothokholi ejwayelekile yokudlulisa okungenantambo.Kuwubuchwepheshe bokwenza inkathi.Ukubukeka kwayo kwenza izinga lamanethiwekhi angenawaya likhule kakhulu.Ukuze kuthuthukiswe amazinga amabili enethiwekhi angenantambo angaphambilini, okuhlanganisa ukuthuthukiswa kwenethiwekhi nokushoda kwethrafikhi okungu-802.11a no-802.11g.
Ijubane layo eliphezulu lokudlulisa ngu-600 Mbit/s ngokombono, kodwa alikwazi ukufinyelela isivinini esikhulu kangaka ekusebenzeni ngenxa yemvelo kanye nezici zokuklama.Uma iqhathaniswa ne-54mbit/s yangaphambilini, ithuthukiswa kakhulu futhi nebanga lokudlulisela lizokwenyuswa.
Iqembu elisebenzayo le-IEEE 802.11 lisungule iqembu locwaningo le-high throughput (HT) ngo-2002 ukuze lakhe isizukulwane esisha samazinga, futhi lamemezela ngokusemthethweni izinga le-802.11n elisekelwe ku-MIMO-OFDM ngo-2009. Okubaluleke kakhulu ukuthi lenze impumelelo. ngesilinganiso.
I-802.11 isebenzisa ubuchwepheshe obusha obusha, obuletha abasebenzisi indawo entsha sha.Ngaphansi kwalesi simiso, imboni ye-WLAN ithuthuke kakhulu, futhi umqondo we-WiFi usugxile.Kuze kube manje, inani elikhulu lamatheminali angu-802.11n lisasetshenziswa kunethiwekhi.
Ubuchwepheshe be-802.11n bubona umkhawulokudonsa omkhulu futhi buletha izimo ezinkulu zohlelo lokusebenza ku-WiFi.
I-802.11n ilethe ubuchwepheshe obuningi obusha.Ku-802.11n, ukuphuma kobuchwepheshe be-WLAN kuthuthukiswa ngokugcwele ngokuhlanganisa ukuthuthukiswa kongqimba olubonakalayo kanye nesendlalelo se-MAC.I-MIMO eklanywe ubuchwepheshe bongqimba bomzimba ibaluleke kakhulu.I-MIMO-OFDM 40MHz kanye nobuchwepheshe obufushane be-GI busetshenziselwa ukuthuthukisa ukuphuma kwesendlalelo esibonakalayo sibe ngu-600mbps.
I-GI isho ukuthi, ngenxa yethonya lomphumela we-multipath, ulwazi luzodluliselwa ngezindlela eziningi, ezingase zingqubuzane futhi ziholele ekuphazamisekeni kwezimpawu.Ngalesi sizathu, izinga le-802.11a/g lidinga ukuthi lapho kuthunyelwa izimpawu zolwazi, kufanele kube nesikhawu sesikhathi esingu-0.8us phakathi kwezimpawu zolwazi, okubizwa ngokuthi isikhawu sonogada.
Ngokungeziwe ekuthuthukiseni isendlalelo esibonakalayo, i-802.11n iphinde ithuthukise isendlalelo sephrothokholi ye-MAC, isebenzisa i-block ACK, ukuhlanganisa uhlaka, nobunye ubuchwepheshe, okuthuthukisa kakhulu ukusebenza kahle kwe-MAC.Isendlalelo esibonakalayo kuphela esithuthukiswayo uma iphrothokholi yesendlalelo se-MAC ingathuthukiswanga.Kufana nokwakha umgwaqo obanzi, kodwa namanje awusheshi ngaphandle kokuhlelwa kahle komzila.
Okungenhla kuyincazelo yolwazi ieee802.11n elethwa kuwenaI-Shenzhen HDV Phoelectron Technology Co., Ltd.ngethemba ukuthi lesi sihloko singakusiza ukukhulisa ulwazi lwakho.Ngaphandle kwalesi sihloko uma ufuna inkampani enhle yabakhiqizi bemishini yokuxhumana ye-fiber ongase uyicabangeleMayelana NATHI.
Imikhiqizo yokuxhumana ekhiqizwe yikhava yenkampani:
Imojula:amamojula we-fiber optical, Amamojula we-Ethernet, amamojula we-fiber optical transceiver, amamojula okufinyelela kwefiber optical, Amamojula we-SSFP optical, futhiImicu ye-Optical SFP, njll.
Isigaba se-ONU:EPON ONU, AC ONU, i-fiber optical ONU, I-CATV ONU, I-GPON ONU, XPON ONU, njll.
Isigaba se-OLT:Ukushintsha kwe-OLT, I-GPON OLT, I-EPON OLT, ukuxhumana kwe-OLT, njll.
Imikhiqizo engenhla ingasekela izimo zenethiwekhi ezahlukahlukene.Kule mikhiqizo engenhla, ithimba le-R & D eliqeqeshiwe nelinamandla limataniswe ukuze linikeze amakhasimende ukwesekwa kobuchwepheshe, futhi ithimba lebhizinisi elicabangayo nelichwepheshile linganikeza izinsizakalo zekhwalithi ephezulu kumakhasimende kusenesikhathi.ukubonisanafuthi kamuva umsebenzi.