Tare da haɓaka fasahar Intanet, saurin watsa hanyoyin sadarwa ya kuma inganta sosai.A cikin watsawar hanyar sadarwa, ƙunƙarar bandeji da faɗaɗa hanyoyin sadarwa guda biyu ne gama gari.Wannan labarin zai bayyana banbance-banbance tsakanin ƙunƙun ƙarfe da allon allo, da kuma nazarin fa'ida da rashin amfanin kowane.
1.Bambanci tsakanin Narrowband da Broadband
Narrowband da Broadband fasahohin watsa hanyoyin sadarwa ne guda biyu, kuma babban bambanci tsakanin su shine saurin watsawa da bandwidth.
Narrowband gabaɗaya ana bayyana shi azaman hanyar sadarwa tare da saurin watsawa a hankali da kunkuntar bandwidth.Watsa ƙunƙun da ke iya watsa ɗan ƙaramin bayanai ne kawai, kuma ya dace da wasu sauƙaƙan yanayin aikace-aikacen, kamar tarho da fax.Fasahar watsawa ta Narrowband tana da sauƙin sauƙi kuma maras tsada, amma saurin watsawa yana jinkiri kuma ba zai iya biyan buƙatun watsawa mai sauri kamar watsa bayanai masu girma ko bidiyo mai girma ba.
Broadband yana nufin hanyar sadarwa tare da saurin watsa sauri da faffadan bandwidth.Broadband na iya watsa nau'ikan bayanai da yawa a lokaci guda, kamar su murya, bidiyo, hoto, da sauransu. Watsawar watsa labarai fasaha ce mai sauri, babban ƙarfin watsa bayanai wacce za ta iya gane gaurayawan watsa nau'ikan sigina daban-daban akan iri ɗaya. Hanyar sadarwa Fasahar watsa shirye-shiryen watsa shirye-shirye ta fi ci gaba fiye da ɗimbin maɗauri, tana iya tabbatar da kwanciyar hankali da tsaro, kuma ta zama hanyar watsa labarai ta yau da kullun a zamanin Intanet.Gabaɗaya, ƙunƙun ƙarfe da na'urar watsa labarai suna da fa'ida da rashin amfani nasu.Wace hanyar watsawa don zaɓar ya dogara da ainihin buƙatu.
Daga ra'ayi na ra'ayi, "kunkuntar" da "fadi" ra'ayoyi ne na dangi, babu ƙaƙƙarfan ƙayyadaddun ƙididdiga, kuma su ne halayen tashar dangane da halayen sigina.Bambanci tsakanin su biyu shine kamar haka: ① "Siginar da za a watsa" shine ake kira tushen.Siginar tushe wanda bandwidth ya fi ƙanƙanta da mitar cibiyar mai ɗaukar hoto sigina ce mai kunkuntar, kuma akasin haka, siginar mai girman kwatankwacin ana kiranta siginar faɗaɗa.②Amfanin mitar band da aka ware muku + ainihin yanayin yaduwa, muna kiran ta tashar.Faɗin albarkatun band ɗin mitar da aka keɓance kuma mafi daidaituwar yanayin yaɗawa, mafi girman ƙimar bayanan da tashar zata iya ɗauka.③ Daga nau'in nau'in igiyar ruwa, bandwidth na siginar shine Δf, kuma mitar mai ɗauka shine fc.Lokacin da Δf <
Don sanya shi a sauƙaƙe, babban bambanci tsakanin broadband da narrowband shine bandwidth.Ba wai kawai Hukumar Sadarwa ta Tarayya ta Amurka ta ba da bayanin da ya dace game da wannan a cikin 2015 ba, amma an kuma bayyana karara a ranar sadarwa ta duniya a 2010 cewa bandwidth da bai wuce 4M ba ana kiransa narrowband, kuma kawai bandwidth wanda ya fi 4M ko sama zai iya zama. ake kira broadband.
Menene bandwidth?
Kalmar bandwidth da farko tana nufin faɗin band ɗin igiyar igiyar ruwa ta lantarki.A taƙaice, shine bambanci tsakanin mafi girma da mafi ƙasƙanci na siginar.A halin yanzu, an fi amfani da shi don bayyana matsakaicin adadin da hanyar sadarwa ko layi ke iya watsa bayanai.A cikin masana'antar layin sadarwa, mutane da yawa suna kwatanta shi da babbar hanya, adadin bayanan da ake watsawa akan layin cikin wani lokaci.
Ƙungiyar bandwidth gama gari ita ce bps (bit per second), wanda shine adadin raƙuman raƙuman ruwa da ake iya watsawa a cikin daƙiƙa guda.Bandwidth babban ra'ayi ne a fannoni kamar ka'idar bayanai, rediyo, sadarwa, sarrafa sigina, da spectroscopy.
2.Abũbuwan amfãni da rashin amfani na narrowband da broadband
2.1 Amfanin kunkuntar bandeji
1. Farashin yana da ƙarancin arha, ya dace da aikace-aikacen sadarwa mara tsada.
2. Ana amfani da wasu hanyoyin sadarwa masu sauƙi, kamar waya, fax, da sauransu.
3. Sauƙi don shigarwa da amfani.
2.2 Rashin lahani na kunkuntar bandeji
1. Saurin watsawa yana jinkirin, kuma yana iya aikawa da sauƙi rubutu, lambobi, da dai sauransu, kuma bai dace da yawan watsa bayanai ba, kamar bidiyo, sauti, da dai sauransu.
2. Ba za a iya tabbatar da kwanciyar hankali da tsaro na watsa bayanai ba.
3. bandwidth yana da ƙananan kuma ƙarfin watsawa yana iyakance.
Fasahar watsa shirye-shiryen watsa labarai tana da fa'idodi masu zuwa:
Babban gudun
Fasahar watsa shirye-shiryen watsa shirye-shirye tana da saurin watsawa, wanda zai iya biyan buƙatun mutane na babban ƙarfi da saurin watsa bayanai.
Babban iya aiki
Fasahar watsa shirye-shiryen watsa shirye-shiryen na iya watsa nau'ikan sigina da yawa a lokaci guda, gane haɗin kai da raba bayanan multimedia, kuma suna da babban ƙarfin watsawa.
Karfin kwanciyar hankali
Fasahar watsa shirye-shiryen watsa shirye-shiryen yana rage tsangwama ta tashar da hayaniya da sauran abubuwan da ke da tasiri ta hanyar fasaha mai yawa, kuma yana inganta ingancin watsawa da kwanciyar hankali.
Mai daidaitawa
Fasahar watsa shirye-shiryen watsa shirye-shirye na iya daidaitawa zuwa mahallin cibiyar sadarwa daban-daban da buƙatun watsa bayanai, gami da waya da mara waya, cibiyar sadarwar jama'a da cibiyar sadarwar masu zaman kansu, da sauransu, kuma yana da aikace-aikace da yawa.
A takaice, a matsayin fasahar watsa bayanai mai sauri, babba mai ƙarfi, fasahar watsa labaru na watsa shirye-shirye na iya fahimtar haɗaɗɗun watsa nau'ikan sigina iri ɗaya akan hanyar sadarwa iri ɗaya, kuma tana da fa'idodin aikace-aikace da buƙatun kasuwa.Haɓaka fasahar watsa labaru na ba wa mutane sauri, kwanciyar hankali da ingantaccen hanyoyin watsa bayanai, kuma yana iya inganta inganci da tsaro na hanyar sadarwa.
2.4 Lalacewar Broadband
1. Kudin kayan aiki yana da yawa, kuma ana buƙatar ƙarin kuɗi don saka hannun jari a cikin gini da kulawa.
2. Lokacin da kayan aikin cibiyar sadarwa a wasu wurare ba su isa ba, ana iya shafar watsa watsa labarai.
3. Ga wasu masu amfani, bandwidth ɗin ya yi yawa, wanda shine asarar albarkatu.
Gabaɗaya, ƙunƙarar bandeji da faɗaɗawa kowa yana da nasa yanayin yanayi da fa'idodi da rashin amfani.Lokacin zabar hanyar sadarwa, yakamata a zaɓi ta bisa ga ainihin buƙatu.
Dogaro da fa'idodinsa na musamman na hanyar sadarwar bazuwar, samfuran cibiyar sadarwar da ba ta tsakiya ba ta kasance a hankali sun zama wani ɓangare na tsarin sadarwar gaggawa kuma sun taka muhimmiyar rawa.An bambanta daga mahangar fasaha, fasahar sadarwar ad hoc ba ta tsakiya ba za a iya raba ta zuwa "fasaharar hanyar sadarwa ta kunkuntar" da "fasahar cibiyar sadarwar ad hoc".
3.1Fasahar Sadarwar Sadarwar Narrowband Ad Hoc
Tsarin sadarwa na murya ya wakilta, tazarar tashoshi na 12.5kHz da 25kHz yawanci ana amfani dashi don ɗaukar bayanai, waɗanda za su iya tallafawa sabis ɗin bayanan mara sauri da suka haɗa da murya, bayanan firikwensin, da sauransu (wasu kuma suna tallafawa watsa hoto).Hakanan ana amfani da fasahar cibiyar sadarwa ta Narrowband ad hoc a tsarin sadarwar murya a cikin samfuran sadarwar gaggawa.Fa'idodinsa a bayyane suke, kamar sake amfani da albarkatun mitar, adana albarkatun bakan, da yawo na tasha mai dacewa;An kammala ɗaukar hoto na yanki ta hanyar haɗin gwiwar multi-hop;ba a buƙatar haɗin waya a cikin hanyar sadarwar, kuma ƙaddamarwa yana da sassauƙa da sauri.
3.2Fasahar Sadarwar Sadarwar Broadband Ad Hoc
Manufar hanyar zirga-zirga sifa ce ta fasahar sadarwa ta broadband ad hoc, wato nodes na iya isar da bayanai a cikin hanyar sadarwar gwargwadon manufar (unicast ko multicast).Ko da yake ɗaukar hoto na cibiyar sadarwa ad hoc ya yi ƙasa da na narrowband, goyon bayansa ga manyan zirga-zirgar bayanai (kamar bidiyo na ainihin lokaci da watsa murya) shine mabuɗin wanzuwarsa.Fasahar hanyar sadarwa ta Broadband ad hoc yawanci tana da babban bandwidth na 2MHz da sama.Haka kuma, tare da karuwar buƙatun digitization, IP da hangen nesa, fasahar hanyar sadarwa ta broadband ad hoc shima wani yanki ne mai mahimmanci na sadarwar gaggawa.
Sadarwar IWAVEyana da bincike na fasaha mai zaman kanta da ƙungiyar ci gaba kuma ya haɓaka jerin samfurori na MESH ba tare da tsaka-tsakin ad hoc na cibiyar sadarwa ba, wanda zai iya watsa bidiyo da sadarwa ba tare da waya ba a kan nesa mai nisa, kuma ana amfani dashi sosai a cikin kariya ta wuta, sintiri, ceton gaggawa, da tura dabarun zamani.Da sauran filayen, suna da kyakkyawan aiki.
Lokacin aikawa: Satumba-08-2023
