Ndi chitukuko chaukadaulo wapaintaneti, kuthamanga kwapaintaneti kwasinthidwanso kwambiri.Mu ma netiweki kufala, narrowband ndi Broadband ndi njira ziwiri wamba kufala.Nkhaniyi ifotokoza kusiyana pakati pa narrowband ndi boardband, ndikuwunika zabwino ndi zoyipa za chilichonse.
1.Kusiyana pakati pa Narrowband ndi Broadband
Narrowband ndi burodibandi ndi awiri wamba maukonde kufala matekinoloje, ndipo kusiyana kwakukulu pakati pawo ndi kufala liwiro ndi bandiwifi.
Narrowband nthawi zambiri imatanthauzidwa ngati njira yolankhulirana yokhala ndi liwiro lochepera komanso bandwidth yocheperako.Kutumiza kwa Narrowband kumatha kufalitsa pang'ono pang'ono, ndipo ndikoyenera pazochitika zina zosavuta, monga foni ndi fax.Ukadaulo wapaintaneti wa Narrowband ndi wosavuta komanso wotsika mtengo, koma liwiro lotumizira limakhala lodekha ndipo silingakwaniritse zofunikira zotumizira mwachangu monga kutumiza kwa data yayikulu kapena kanema wotanthauzira.
Broadband imatanthawuza njira yolankhulirana yothamanga kwambiri komanso bandwidth yotakata.Broadband imatha kutumiza mitundu ingapo ya data nthawi imodzi, monga mawu, kanema, chithunzi, ndi zina. Kutumiza kwa Broadband ndiukadaulo wothamanga kwambiri, womwe umatha kuzindikira kufalikira kosakanikirana kwa mitundu ingapo ya ma siginecha omwewo. Ukadaulo wapakatikati wolumikizirana wa Broadband ndiwotsogola kwambiri kuposa chingwe chocheperako, ungatsimikizire bata ndi chitetezo, ndipo wakhala njira yopatsirana kwambiri m'nthawi yamakono ya intaneti.Kawirikawiri, narrowband ndi Broadband ali ndi ubwino ndi kuipa kwawo.Njira yotumizira yomwe mungasankhe imadalira zosowa zenizeni.
Kuchokera pamalingaliro, "yopapatiza" ndi "yotambasuka" ndi malingaliro ofanana, palibe malire okhwima a manambala, ndipo ndi mawonekedwe a mayendedwe okhudzana ndi mawonekedwe azizindikiro.Kusiyana pakati pa ziwirizi ndi motere: ① "Sizinali yotumizidwa" imatchedwa gwero.Chizindikiro cha gwero chomwe bandwidth yake ndi yaying'ono kwambiri kuposa mafupipafupi apakati pa chonyamulira ndi chizindikiro chocheperako, ndipo mosiyana, chizindikiro chokhala ndi kukula kofanana chimatchedwa chizindikiro cha Broadband.②Chithandizo cha frequency band chomwe mwapatsidwa + malo enieni ofalitsa, timachitcha njira.Kuchulukira kwa magulu amtundu woperekedwa komanso kukhazikika kwa malo ofalitsira, m'pamenenso tchanelocho chinganyamule kuchuluka kwa deta kumakwera.③ Kuchokera pamawonekedwe a mawonekedwe a mawonekedwe, chizindikiro cha bandwidth ndi Δf, ndipo ma frequency onyamula ndi fc.Pamene Δf <
Kunena mwachidule, kusiyana kwakukulu pakati pa Broadband ndi Narrowband ndi bandwidth.Sikuti bungwe la Federal Communications Commission la United States linapereka mafotokozedwe oyenerera pa izi mu 2015, komanso zinafotokozedwa momveka bwino pa World Telecommunications Day mu 2010 kuti ma bandwidths osachepera 4M amatchedwa narrowband, ndipo ma bandwidths okha oposa 4M kapena pamwamba angakhalepo. amatchedwa Broadband.
Kodi bandwidth ndi chiyani?
Mawu akuti bandwidth poyambilira amatanthauza kukula kwa band ya electromagnetic wave.Mwachidule, ndiko kusiyana pakati pa maulendo apamwamba kwambiri ndi otsika kwambiri a chizindikiro.Pakalipano, amagwiritsidwa ntchito kwambiri pofotokoza kuchuluka kwazomwe ma netiweki kapena mzere ukhoza kutumiza deta.M'makampani opanga mauthenga, anthu ambiri amawayerekeza ndi msewu waukulu, kuchuluka kwa deta yomwe imatumizidwa pamzere mkati mwa nthawi.
Chigawo chodziwika bwino cha bandwidth ndi bps (bit pa sekondi), yomwe ndi nambala ya ma bits omwe amatha kufalikira pamphindikati.Bandwidth ndi lingaliro lofunikira m'magawo monga chidziwitso chazidziwitso, wailesi, kulumikizana, kukonza ma sign, ndi spectroscopy.
2.Ubwino ndi kuipa kwa narrowband ndi Broadband
2.1 Ubwino wa Narrowband
1. Mtengo wake ndi wotchipa, woyenera kugwiritsa ntchito mauthenga otsika mtengo.
2. Imagwira ntchito panjira zina zosavuta zolankhulirana, monga telefoni, fax, ndi zina.
3. Easy kukhazikitsa ndi ntchito.
2.2 Kuipa kwa narrowband
1. Kuthamanga kwapatsirana kumachedwa, ndipo kumangotumiza malemba osavuta, manambala, ndi zina zotero, ndipo sikuyenera kufalitsa deta yambiri, monga kanema, audio, ndi zina zotero.
2. Kukhazikika ndi chitetezo cha kufalitsa deta sikungatsimikizidwe.
3. Bandiwifi ndi yaing'ono ndipo mphamvu yotumizira ndi yochepa.
Ukadaulo wotumizira ma Broadband uli ndi zabwino izi:
Liwilo lalikulu
Ukadaulo wapaintaneti wa Broadband uli ndi liwiro lothamanga kwambiri, lomwe lingakwaniritse zosowa za anthu pakutumiza kwakukulu komanso kuthamanga kwa data.
Kuthekera kwakukulu
Ukadaulo wapaintaneti wa Broadband utha kutumiza mitundu ingapo yazizindikiro nthawi imodzi, kuzindikira kuphatikizika ndi kugawana zidziwitso zamawu, komanso kukhala ndi mphamvu zambiri zotumizira.
Kukhazikika kwamphamvu
Ukadaulo wotumizira ma Broadband umachepetsa kusokoneza kwa mayendedwe ndi phokoso ndi zinthu zina zokopa kudzera muukadaulo wochulukitsa, ndikuwongolera kufalikira komanso kukhazikika.
Zosinthika
Ukadaulo wapaintaneti wa Broadband utha kusinthira kumadera osiyanasiyana amtaneti komanso zofunikira zotumizira ma data, kuphatikiza ma waya ndi opanda zingwe, maukonde amtundu wapagulu ndi maukonde achinsinsi, ndi zina zambiri, ndipo ali ndi ntchito zambiri.
Mwachidule, monga ukadaulo wothamanga kwambiri, wochulukitsa kwambiri, ukadaulo wotumizira ma burodibandi amatha kuzindikira kufalikira kosakanikirana kwa mitundu ingapo ya ma siginecha panjira yolumikizirana yomweyi, ndipo ali ndi chiyembekezo chogwiritsa ntchito komanso zofuna za msika.Kupanga ukadaulo wotumizira ma burodibandi kumapatsa anthu njira zofulumira, zokhazikika komanso zogwira ntchito bwino zotumizira ma data, komanso zimatha kupititsa patsogolo chitetezo ndi chitetezo cha maukonde.
2.4 Zoyipa za Broadband
1. Mtengo wa zipangizo ndi wokwera, ndipo ndalama zambiri ziyenera kuikidwa pa ntchito yomanga ndi kukonza.
2. Pamene zipangizo zamakina m'madera ena sizikwanira, kufalitsa kwa burodibandi kungakhudzidwe.
3. Kwa ogwiritsa ntchito ena, bandwidth ndi yaikulu kwambiri, yomwe ndi kuwononga chuma.
Mwambiri, narrowband ndi Broadband iliyonse ili ndi zochitika zake zomwe zimagwira ntchito komanso zabwino ndi zovuta zake.Posankha njira yolankhulirana, iyenera kusankhidwa malinga ndi zosowa zenizeni.
Kudalira ubwino wake wapadera wa maukonde mwachisawawa, sanali pakati pawokha kudzikonza zopangira maukonde pang'onopang'ono kukhala mbali ya dongosolo kulankhulana mwadzidzidzi ndipo anachita mbali yofunika.Kusiyanitsidwa ndi malingaliro aukadaulo, ukadaulo wapaintaneti wa non-center ad hoc ukhoza kugawidwa mu "narrowband ad hoc network technology" ndi "broadband ad hoc network technology".
3.1Narrowband Ad Hoc Network Technology
Kuyimiridwa ndi njira yolankhulirana ndi mawu, kusiyana kwa mayendedwe a 12.5kHz ndi 25kHz nthawi zambiri amagwiritsidwa ntchito kunyamula deta, yomwe ingathe kuthandizira maulendo otsika kwambiri a data kuphatikizapo mawu, deta ya sensa, etc. (ena amathandizanso kutumiza zithunzi).Ukadaulo wapaintaneti wa Narrowband ad hoc umagwiritsidwanso ntchito kwambiri pamakina olankhulirana amawu pazinthu zolumikizirana mwadzidzidzi.Ubwino wake ndi wodziwikiratu, monga kugwiritsa ntchito pafupipafupi gwero, kupulumutsa sipekitiramu zothandizira, komanso kuyendayenda kosavuta;Kufalikira kwachigawo kumamalizidwa kudzera mu maulalo amitundu yambiri;palibe kulumikizidwa kwawaya komwe kumafunikira pamanetiweki, ndipo kutumiza kumasinthasintha komanso mwachangu.
3.2Broadband Ad Hoc Network Technology
Lingaliro la mayendedwe ndi mawonekedwe aukadaulo waukadaulo wa Broadband ad hoc, ndiye kuti, ma node amatha kufalitsa zidziwitso pamaneti malinga ndi cholinga (unicast kapena multicast).Ngakhale kuphimba kwa Broadband ad hoc network ndi kotsika kuposa ya narrowband , kuthandizira kwake kwa magalimoto akuluakulu a deta (monga mavidiyo a nthawi yeniyeni ndi kufalitsa mawu) ndiye chinsinsi cha kukhalapo kwake.Ukadaulo wapaintaneti wa Broadband ad hoc nthawi zambiri umakhala ndi bandwidth yayikulu ya 2MHz ndi kupitilira apo.Kuphatikiza apo, pakuwonjezeka kwa kufunikira kwa digito, IP ndi zowonera, ukadaulo wa Broadband ad hoc network nawonso ndi gawo lofunikira kwambiri pakulumikizana mwadzidzidzi.
IWAVE kulankhulanaali ndi gulu lodziyimira pawokha lofufuza zaukadaulo komanso lachitukuko ndipo apanga mndandanda wazinthu zambiri zamtundu wa MESH zomwe sizili zapakati pa ad hoc, zomwe zimatha kutumiza makanema ndi kulumikizana popanda zingwe pamtunda wautali, ndipo zimagwiritsidwa ntchito kwambiri poteteza moto, kulondera, kupulumutsa mwadzidzidzi, ndi ntchito zamakono zamakono.Ndipo madera ena, khalani ndi ntchito yabwino kwambiri.
Nthawi yotumiza: Sep-08-2023
