Mubvunzo: Chii chinonzi 802.11? Ndeipi wireless protocol inofanirwa kushandisa madivayiri angu?
Mhinduro:
802.11 ndiyo yakagadzirwa netsika dzekombiyuta yemashandisirwe emagetsi asina tsvina. Iyi mitemo yakatarwa neIEEE (Institute of Electrical and Electronic Engineers), uye inonyanya kuronga kuti zvakasiyana sei zvigadzirwa zvemagetsi zvakagadzirwa uye kuti zvinotaurirana sei.
Iwe uchaona 802.11 inotaurwa apo iwe unotarisira kutenga chinhu chisingabatsiri-kushandiswa kana chipande chemafiriya asingasviki. Paunotsvakurudza kuti netbook inotenga chii, somuenzaniso, unogona kuona zvimwe zvichitsanangurwa sekutaurirana zvisina kutengesa pa "ultra-high" 802.11 n kasi (chaizvoizvo, Apple inoshandisa kushandiswa kwayo kwekombiyuta 802.11n mumakombiyuta ayo emazuva ano uye zvigadzirwa). Nhamba ye 802.11 inotaurwa zvakare mune tsanangudzo dzesimbi dzisina mhepo ivo pachavo; somuenzaniso, kana iwe uchida kushamwaridzana nevanhu vasina wireless hotspot, unogona kutaurirwa kuti iyo 802.11 g network.
Tsamba dzinorevei?
Tsamba yakatevera "802.11" inoratidza kuchinjwa kwepakutanga 802.11. Wireless teknolojia yevatengi / vanhu vose vakafambira mberi kubva ku802.11a kusvika ku802.11b kusvika ku802.11g kune, munguva ichangopfuura, 802.11n . (Hongu, mamwe mabhii, "c" uye "m," semuenzaniso, anowanikwawo mumutambo we 802.11, asi anongonyanya kukosha kune vanogadzira IT kana mamwe mapoka akasiyana evanhu.)
Pasina kupinda mune zvakasiyana zvakasiyana pakati pe 802.11a, b, g, uye n mitambo, tinokwanisa kungoita kuti shanduro yega yega ye 802.11 inobatsira kushandiswa kusina wireless network performance, zvichienzaniswa neshanduro dzakatangira, maererano ne:
- dhigiriji rekuda : kuwandisa kwekufambisa kwekufambisa mberi (kureva, kuti zvakanyanya sei mashoko anogona kufamba pamusoro pematareji asingatauri)
- mararamiro : kureba mazita asingasviki anogona kusvika kana kuti yakakura sei nzvimbo dzisingabatsiri dzisingavha (kureva, iwe uri kure zvakadini kubva mumhepo isingaziviki uye unoramba uine hutano hwakavimbika)
802.11n (inozivikanwawo se "Wireless-N"), iyo inozivikanwa yekusina wireless protocol, inopa kasi yepamusoro yehuwandu hwemashoko nhasi uye zviri nani zviratidzo zvepamusoro kune teknolojia yekare. Zvechokwadi, kuratidzira kukurumidza kwezvinhu zvinokwana 802.11n zvave zvakakurumidza kanomwe kupfuura 802.11g; pane mazana matatu kana kupfuura Mbps (megabits per second) mukushandiswa kwechokwadi kwepasi, 802.11n ndiyo yekutanga isina wire protocol kunetsa zvakakomba wired 100 Mbps Ethernet setups.
Nhepfenyuro-N nhizha dzakagadzirirwa kuti dziite zviri nani pamakiromita makuru, kuitira kuti laptop inogona kunge yakareba mamita matatu kubva pamusana usina kushandiswa kwehutachiona uye ichiri kuchengetedza kuti yakakwirira data transmission speed. Kusiyana neizvi, nemitemo yekare, dhiyo yako yekukurumidza nekubatanidza kunowanzove isina simba apo iwe uri kure kure ne wireless access point.
Saka nei tisingaiti munhu wose achishandisa michina ye Wireless-N?
Zvakatora makore manomwe kusvikira 802.11n protocol yakazobvumirwa / yakarongedzwa neIEEE munaSeptember 2009. Mumakore manomwe iwayo apo purogiramu yakanga ichiri kushandiswa, vazhinji ve "pre-n" ne "draft n" wireless products were introduced , asi vaifarira kushanda zvakanaka nemamwe mitambo isina mhepo kana zvimwe zvakagadzirwa kare 802.11n.
Ndinofanira kutenga Wireless-N network network / access point / laptop, computer.
Iye zvino iyo 802.11n yakagamuchirwa-uye nokuti mapoka emakambani asingasviki akaita seWi-Fi Alliance ave achikurudzira kufanana pakati pe 802.11n uye kupfuura 802.11 michero-pangozi yekutenga zvigadzirwa zvisingakwanisi kutaurirana kana kune vakwegura hardware yakaderera zvikuru.
Kuwedzera kwehutano hunobudirira hwema802.11n zvechokwadi kunokodzera kutarisa, asi ramba uchifunga mupfungwa dzinotevera mazano / mazano paunosarudza kana iwe ukasunga pamwe nekushandiswa kwakawandisa 802.11g kana kutsvaga mu 802.11n ikozvino :
- Nhandare inoshanda ichave yakakura apo imwe neimwe yezvigadziri pamutambo usina wireri iri kushandisa 802.11n teknolojia. Pane flip side, kana chigadzirwa chakare chinoshandisa 802.11g kana 802.11b chichibatanidza ne 802.11n-based router yako, kukurumidza uye kudhinda kwedhidha yezvinhu zvose zviri mumutambo zvichaderera. Imwe nzira yekufamba-famba iyi nhauriro yeimba yako isina musha wekutengesa ndeyokuwana izvo zvinodanwa se-double-band router kana kuti nzvimbo yekugona. Izvi zvinobvumira zvigadzirwa zvekare kuti zvishande pane rimwe bhenji (2.4 GHz) uye zvitsva zve 802.11n-based kuti dzishandise imwe iyo frequency band (5 GHz).
- Tsvaga zvigadzirwa zvemakambani zvichangobva kuumbwa, izvo zvichava nemikana yakawanda yekufananidza nemvumo ye 802.11n. Zvechokwadi dzivisa "pre-n" kana "zvigadzirwa n" zvigadzirwa.
- Uyezve tarisa zvinhu zvinogadzirwa neHi-Fi Alliance (ivo vachave ne-Wi-Fi CERTIFIED logo pakurongwa kwavo), sezvo zvigadzirwa izvi zvakaongororwa zvinoenderana nekubatana.
- Pakupedzisira, ramba uchifunga kuti vazhinji vevanhu vasina hutspots nevanoshandisa mitambo vasina hutachiwana huzhinji vanogona kunge vari kutamba 802.11g kana b. Kunyange zvazvo chikwata chako chitsva cha 802.11n chiri shure-chinowirirana (kureva, chinogona kushanda) iyi mitambo, ichaita zvishoma nezvishoma g kana b speed.