Sihlala sithatha i-Wi-Fi ngokulula. Xa sicinga ngezantya ze-intanethi, sihlala sijonga itekhnoloji ebonelelwa ngumboneleli wenkonzo.
Cinga ngophuculo olungakanani esilwenzileyo xa ujonga i-intanethi yokucofa kwaye uyithelekise nezantya ezifunyenwe yi-fiber optic internet.
Ngaphandle kophuculo olwenziwe kunxibelelwano lwetekhnoloji yedatha, asiqaphelanga ukuba itekhnoloji engenazingcingo eziza nayo yenze inkqubela phambili enkulu ngokunjalo.
Nokuba isantya se-Intanethi sikhawuleza kangakanani, uqhagamshelo olucothayo lwe-Wi-Fi lusenokuchaphazela kakhulu amava akho okukhangela.
Kweli nqaku siza kujonga i-Wi-Fi, i-Gi-Fi kunye ne-Li-Fi teknoloji.
Okokuqala, siza kujonga imbali emfutshane yokuba iWi-Fi ifikelele njani kwizantya ezikhawulezayo ze-intanethi. Okulandelayo, siza kujonga itekhnoloji entsha eyaziwa ngokuba yi-Li-Fi, ebanga ukuba ikhawuleza ngakumbi kunemigangatho yangoku ye-Wi-Fi.
Yintoni i-Wi-Fi?
I-Wi-Fi yitekhnoloji yenethiwekhi engenazingcingo evumela izixhobo ukuba ziqhagamshelane ne-Intanethi. Xa sithetha ngobuchwephesha, iWi-Fi esiyisebenzisayo namhlanje isekwe kumgangatho wamazwe ngamazwe owaziwa ngokuba yi-IEEE 802.11.
Lo mgangatho wenza unxibelelwano phakathi kwezixhobo kunye neerotha ezenziwe ngabavelisi kwihlabathi liphela.
I-Wi-Fi isebenza kakuhle kumgca wokubonwayo. Oku kuthetha ukuba izithintelo ezifana neendonga kunye nezixhobo ezinkulu zekhaya zinganciphisa uluhlu lwe-router nganye.
Unyino lweWi-Fi
- isantya: Xa kuthelekiswa noqhagamshelo lweengcingo, iWi-Fi yeyona ndlela icothayo yoqhagamshelwano. Uqhagamshelo olungenacingo lungacotha ukuba izixhobo ezininzi zabelana ngoqhagamshelwano olufanayo lwe-Wi-Fi
- bandwidth: Uninzi lweendlela ezithengiswayo zivumela ukuya kuthi ga kwizixhobo ezingama-30.
- Umyinge: Uqhagamshelo olungenacingo lusenokudibana “neendawo ezimnyama” apho isignali ingafumanekiyo ngenxa yokuba ikude kangakanani nomzila okanye ngenxa yeminye imiqobo.
- ukhuseleko: I-Wi-Fi isesichengeni sokuhlaselwa ngabadlali abakhohlakeleyo kuba iindawo zofikelelo zidla ngokuvezwa ngokungagqibekanga. Xa kuthelekiswa noqhagamshelo oluneentambo njenge-Ethernet, i-Wi-Fi ayifuni naluphi na uxhumano lomzimba. Omnye kufuneka abe phakathi koluhlu lwenethiwekhi.
I-Gi-Fi: I-Evolution ye-Gigabit Fidelity
I-Gi-Fi ibhekiselele kunxibelelwano olungenazingcingo olunokusingatha umlinganiselo wedatha ongaphezulu kwebhiliyoni enye yeebhithi okanye iigigabhithi ngomzuzwana.
Yinto encinci yegama elingaqondakaliyo, kodwa ngokuqhelekileyo linxulunyaniswa nomgangatho we-IEEE 802.15.3C, owapapashwa ngo-2009. Lo mgangatho uvumela amazinga aphezulu kakhulu edatha kuluhlu olufutshane ukuya kwi-10m.
Ukususela ekuqalisweni komgangatho wokuqala we-Wi-Fi ngo-1999, i-Wi-Fi iye yanyusa ngokuthe ngcembe i-avareji kunye neqondo eliphezulu ledatha.
Ngo-2013, i-Wi-Fi iye yakhawuleza ngakumbi ngokuvela komgangatho we-802.11ac, opakisha phantse isantya esiphindwe kathathu sowandulelayo, i-802.11n. Lo mgangatho uphula igigabhithi ngomqobo wesibini.
Kule mihla, sibhekisa kulo mgangatho njengomgangatho we-Wi-Fi 5.
Kutshanje, iWi-Fi Alliance ibisebenza kumgangatho olandelayo owaziwa ngokuba yi-802.11ax, owaziwa njenge. Wi-Fi 6.
I-Wifi-6 inokuthi iphezulu ithiyori malunga ne-9.6Gbps, eyonyuka isuka kwi-Wi-Fi 5's 3.5 Gbps. Iirutha ze-Wi-Fi 6 ziya kuyilwa ngendlela esebenzayo yokuphatha izixhobo ezininzi kwindlu enye.
Oku kubaluleke ngakumbi njengoko ukunyuka kwetekhnoloji ye-Intanethi yeZinto kuqhubeka.
Kukho iitekhnoloji ezimbini eziphambili ze-Wi-Fi 6. I MU-MIMO itekhnoloji ivumela i-router ukuba inxibelelane ukuya kuthi ga kwizixhobo ezisi-8 ngelo xesha.
I-OFDMA, okanye i-orthogonal frequency division multiple access inokuvumela i-router ukuhambisa idatha kwizixhobo ezininzi kwi-transmission enye.
Zombini ezi teknoloji ziya kuvumela unxibelelwano olukhawulezayo phakathi kwe-router yakho kunye nezixhobo ezikufutshane nayo.
Yintoni i-Li-Fi?
I-Li-Fi ibhekisa kuhlobo lobuchwepheshe bonxibelelwano obungenazingcingo obusebenzisa ukukhanya ukuhambisa idatha phakathi kwezixhobo. Isebenza ngokusebenzisa umsinga wombane kwibhalbhu yokukhanya ye-LED. Ekubeni ii-LED zizixhobo ze-semiconductor, zinokuguqulwa ukuze zitshintshe ngesantya esiphezulu kakhulu.
Oku kumodareyitha kungqongqo akunakubonwa ngeliso lomntu kodwa kunokubonwa kwaye kutolikwe ngabachongi abakhethekileyo be-Li-Fi.
Itekhnoloji iyafana ne-Wi-Fi, kodwa ngelixa i-Wi-Fi isebenzisa i-radio frequency ukuhambisa idatha, i-Li-Fi isebenzisa ukumodareyithwa kokukhanya kokukhanya ukuhambisa idatha.
Ngenxa yoku, i-Li-Fi inenzuzo kwiindawo ezisengozini yokuphazamiseka kombane. Ngokwethiyori, iLi-Fi inokusasaza ngesantya ukuya kuthi ga kwi-100 Gbps.
I-Li-Fi isengasebenza emini kuba itekhnoloji ixhomekeke ekubhaqweni kotshintsho ekukhanyeni kokukhanya hayi amanqanaba apheleleyo anokuthi amiselwe yimeko yangoku.
I-Li-Fi isebenzisa iteknoloji yonxibelelwano olungenazingcingo (OWC). Ubuchwephesha be-OWC bale mihla busebenzisa iilaser okanye ii-diode ezikhupha ukukhanya (ii-LED) njengezithutha.
Iimpawu eziphambili ze-Li-Fi
- I-Li-Fi ayinaziphazamiso. Iimpawu ze-Li-Fi zinokusetyenziswa kwiindawo ezinobutshaba ezifana nezibhedlele, iinqwelomoya, kunye neefektri.
- Itekhnoloji ikwabonelela nge-latency ephantsi ephantsi ngokuphindwe kathathu kune-Wi-Fi.
- I-Li-Fi ikhuseleke ngakumbi kuba imiqobo yomzimba imisa imiqondiso ekuphumeni kwigumbi.
- I-Li-Fi inikezela ngenkonzo yokuqondisa kabini, oku kuthetha ukuba inokusingatha zombini ukulayisha kunye nokukhutshelwa ngaxeshanye.
- Ezinye izicelo sele zixhasa iWPA2 yoBuqu kunye neShishini loqinisekiso.
IiPros and Cons of Li-Fi
eziluncedo
- isantya: amaza okukhanya angathwala ulwazi oluninzi kunamaza erediyo. Oku kuthetha ukuba ukuhanjiswa kwedatha kuthatha ixesha elifutshane.
- Ukusebenza kakuhle: Nayiphi na ibhalbhu ye-LED esele isetyenziswa inokusebenzisa ubuchwepheshe be-Li-Fi. Abathwali akufuneki batyale ixesha elininzi besenza iirotha, ii-eriyali, kunye nezinye iziseko zonxibelelwano ngomnxeba.
- ukhuseleko: Uthungelwano lwe-Li-Fi kunzima ukuthintela ukuba ungaphandle kwegumbi apho iteknoloji imiselwe khona. Ngokungafaniyo ne-Wi-Fi, iindonga zendawo yakho yangoku zivimba imiqondiso ye-li-Fi.
- ukufumaneka: I-Li-Fi inokudibanisa ngokulula kunye nemithombo yokukhanya ekhoyo efana nezibane zesitrato, kunye nezibane zokwakha.
neengozi
- Uluhlu olulinganiselwe: Ngaphandle kwe-advanteji yokhuseleko, i-Li-Fi yokungakwazi ukungena kwizinto ezi-opaque kuthetha ukuba uluhlu lwe-Li-Fi lulinganiselwe. Kwiindawo ezivulekileyo, i-Li-Fi inokunyuka ukuya kwi-10 yeemitha kuphela.
- Ukuhambelana okulinganiselweyo: Njengobuchwephesha obutsha, iimveliso zabathengi eziqhelekileyo akunakwenzeka ukuba ziqhelane ne-Li-Fi kungekudala.
- Ayisombululi izantya ze-intanethi: Ababoneleli ngeenkonzo basalawula ukuba ulwazi lunokuhamba ngokukhawuleza kangakanani kwisixhobo se-Li-Fi.
isiphelo
I-Wi-Fi idityaniswe ngokunzulu kwindlela uluntu olusebenza ngayo ngoku. Kunzima ukucinga ngelizwe ngaphandle kwe-Wi-Fi eqhagamshela iifowuni zethu, iilaptops, kunye nezixhobo ezikrelekrele kwiwebhu.
Njengoko imfuno yezantya ze-intanethi ekhawulezayo iqhubeka isanda, i-Wi-Fi, i-Gi-Fi kunye ne-Li-Fi iteknoloji iya kuqhubeka nokusungula.
Imakethi ephambili yabathengi ilungisa kancinci i-Gi-Fi, okanye itekhnoloji engenazingcingo yegigabit njengokusasaza ividiyo ye-4K kunye nezixhobo ezininzi ezikrelekrele ziba yinto eqhelekileyo.
Itekhnoloji entsha efana ne-Li-Fi ijonge iimeko zokusetyenziswa kweshishini niche ukuthatha inzuzo yamaxabiso edatha akhawulezayo kunye neempawu zokhuseleko.
Shiya iMpendulo