Inethiwekhi ye-Ad hoc, ezihlelele yonainethiwekhi ye-mesh, isuka ku-Mobile Ad Hoc Networking, noma i-MANET ngamafuphi.Igama elithi "Ad Hoc" livela kusiLatini futhi lisho ukuthi "Ngenjongo ethile kuphela", okungukuthi, "ngokwenjongo ekhethekile, yesikhashana".Inethiwekhi ye-Ad Hoc iyinethiwekhi yesikhashana yokuzihlela ye-multi-hop eyakhiwe iqembuamatheminali eselulangama-transceivers angenawaya, ngaphandle kwanoma yisiphi isikhungo sokulawula noma izinsiza zokuxhumana eziyisisekelo.Wonke ama-node kunethiwekhi ye-Ad Hoc anesimo esilinganayo, ngakho-ke asikho isidingo sanoma iyiphi indawo emaphakathi yokulawula nokuphatha inethiwekhi.Ngakho-ke, ukulimala kunoma iyiphi itheminali eyodwa ngeke kuthinte ukuxhumana kwayo yonke inethiwekhi.I-node ngayinye ayinawo umsebenzi wetheminali yeselula kuphela kodwa futhi idlulisela idatha yamanye ama-node.Uma ibanga eliphakathi kwamanodi amabili likhulu kunebanga lokuxhumana okuqondile, indawo emaphakathi idlulisela idatha ukuze bathole ukuxhumana phakathi kwabo.Kwesinye isikhathi ibanga eliphakathi kwamanodi amabili lide kakhulu, futhi idatha idinga ukudluliselwa ngamanodi amaningi ukuze ifinyelele indawo okuyiwa kuyo.
Izinzuzo zobuchwepheshe benethiwekhi ye-ad hoc engenantambo
● Ukwakhiwa kwenethiwekhi okusheshayo nokuxhumana okuvumelana nezimo
Ngokwesisekelo sokuqinisekisa ukuphakelwa kukagesi, akuvinjelwa ukuthunyelwa kwezinsiza ezisekelayo njengamakamelo amakhompyutha nama-optical fibers.Asikho isidingo sokumba imisele, ukumba izindonga, noma ukusebenzisa amapayipi nezintambo.Ukutshalwa kwezimali zokwakha kuncane, ubunzima buphansi, futhi umjikelezo mfushane.Ingatshalwa futhi ifakwe ngokuguquguquka ngezindlela ezihlukahlukene ngaphakathi nangaphandle ukuze kuzuzwe ukwakhiwa kwenethiwekhi okusheshayo ngaphandle kwegumbi lekhompyutha futhi ngezindleko eziphansi.Amanethiwekhi asabalalisiwe angenasikhungo asekela ukuxhumana kwe-point-to-point, point-to-multipoint kanye ne-multipoint-to-multipoint, futhi angakha amanethiwekhi e-topology angenasizathu afana neketango, inkanyezi, i-mesh, ne-hybrid dynamic.
● Umzila oguquguqukayo omelana nokucekela phansi futhi uziphilisa ngokwawo kanye nokudluliselwa kwe-multi-hop
Lapho ama-node enyakaza, anda noma ehla ngokushesha, i-topology yenethiwekhi ehambisanayo izobuyekezwa ngemizuzwana, imizila izokwakhiwa kabusha ngamandla, izibuyekezo ezihlakaniphile zesikhathi sangempela zizokwenziwa, futhi ukudluliswa kwe-multi-hop relay kuzogcinwa phakathi kwama-node.
● Ukunyakaza kwesivinini esiphezulu, umkhawulokudonsa ophezulu, kanye nokudluliswa okuguquguqukayo kwe-low-latency okumelana nokufiphala kwezindlela eziningi.
● Ukuxhumana nokuhlanganiswa kwenethiwekhi
Idizayini ye-IP yonke isekela ukudluliswa okusobala kwezinhlobo ezahlukahlukene zedatha, ixhuma nezinhlelo zokuxhumana ezihlukene, futhi ibona ukuhlanganiswa okusebenzisanayo kwezinsizakalo zamanethiwekhi amaningi.
●Ukumelana nokuphazamiseka okuqinile nge-antenna ehlakaniphile, ukukhethwa kwefrikhwensi okuhlakaniphile, nokugxuma kwamafrikhwensi okuzenzakalelayo
Ukuhlunga kwedijithali kwesizinda sesikhathi kanye ne-MIMO smart antenna kucindezela ngempumelelo ukuphazamiseka okungaphandle kwebhendi.
Imodi yokusebenza ehlakaniphile yokukhetha ifrikhwensi: Uma iphoyinti lefrikhwensi yokusebenza liphazanyiswa, indawo yefrikhwensi ngaphandle kokuphazamiseka ingakhethwa ngobuhlakani ukuze kudluliselwe inethiwekhi, kugwenywe ngempumelelo ukuphazamiseka okungahleliwe.
Imodi yokusebenza ye-Autonomous frequency hopping: Ihlinzeka nganoma iyiphi isethi yamashaneli asebenzayo ngaphakathi kwebhendi yefrikhwensi yokusebenza, futhi yonke inethiwekhi igxuma ngokuhambisanayo ngesivinini esikhulu, igwema ngempumelelo ukuphazamiseka okunonya.
Yamukela ukulungiswa kwephutha le-FEC phambili kanye nezindlela zokulawula amaphutha ze-ARQ ukuze kuncishiswe izinga lokulahleka kwephakethe lokudluliswa kwedatha nokuthuthukisa ukusebenza kahle kokudluliswa kwedatha.
● Ukubethela kokuphepha
Ucwaningo nokuthuthukiswa okuzimele ngokugcwele, ama-waveform enziwe ngokwezifiso, ama-algorithms kanye nezinqubo zokudlulisela.Ukudluliswa kwesixhumi esibonakalayo somoya kusebenzisa okhiye abangu-64bits, abangakhiqiza ngokuguqukayo ukulandelana kokukrwabha ukuze kuzuzwe ukubethelwa kwesiteshi.
● Idizayini yezimboni
Izinto ezisetshenziswayo zamukela i-plug-in yendiza, enokumelana okuqinile nokudlidliza futhi ihlangabezana ngokuqinile nezidingo zokusebenza zokulwa nokudlidliza kwezokuthutha ngemoto.Inezinga lokuvikela le-IP66 kanye nebanga lokushisa elibanzi lokusebenza ukuhlangabezana nemvelo enzima yokusebenza yangaphandle yesimo sezulu sonke.
● Ukusebenza okulula nokusebenza okulula nokugcinwa
Nikeza ngezimbobo zenethiwekhi ezihlukahlukene, izimbobo ze-serial kanye ne-Wi-Fi AP, amadivaysi eselula, amakhompyutha noma ama-PAD, isofthiwe yesistimu yetheminali yokungena yasendaweni noma ekude, ukuphathwa nokusebenza nokugcinwa.Inokuqapha kwesikhathi sangempela, imephu ye-GIS neminye imisebenzi, futhi isekela ukuthuthukiswa kwesofthiwe ekude/ukumisa/ukuqalisa kabusha okushisayo.
Isicelo
● Irediyo yenethiwekhi engenantambo isetshenziswa kakhulu ezindaweni ezingabonwayo (i-NLOS) ezifiphala izindlela eziningi, ukuxhumana okubalulekile kwevidiyo/idatha/izwi.
●Amarobhothi/izimoto ezingenamuntu, uphenyo/ukuqapha/ukulwa nobuphekula/ukugadwa
●I-Air-to-air & air-to-ground & ground-to-ground, ukuphepha komphakathi/imisebenzi ekhethekile
●Inethiwekhi yasemadolobheni, ukwesekwa kwezimo eziphuthumayo/ukuqapha okujwayelekile/ukuphathwa kwethrafikhi
●Ngaphakathi nangaphandle kwesakhiwo, ukulwa nomlilo/ukuhlenga kanye nokusiza ezinhlekeleleni/ihlathi/ukuvikela komoya womphakathi/ukuzamazama komhlaba
●I-TV isakaza umsindo okungenantambo nevidiyo/umcimbi obukhoma
● Ukuxhumana olwandle/umkhumbi ukuya ogwini ngesivinini esiphezulu
●Low-deck Wi-Fi/Shipborne Landing
●Uxhumano lwemayini/umhubhe/ongaphansi
Isikhathi sokuthumela: Feb-20-2024
