"Ad hoc" txhais tau tias ua haujlwm lossis ua kom zoo, yog li lub wireless ad hoc network (WANET) yog hom ntawm kev thov, kev ua haujlwm tsis tu ncua-rau-device network. Hauv hom ad hoc, koj tuaj yeem teeb tsa kev sib txuas wireless ncaj qha mus rau lwm lub khoos phis tawj lossis ntaus ntawv yam tsis tas yuav txuas mus rau Wi-nkaus nkag lossis router.
Vim tias kev sib txuas ntawm ad hoc tsis xav tau cov txheej txheem uas twb muaj lawm los txhawb nqa lub network, nws tau txiav txim siab thiab suav tias yog ib tus phooj ywg-rau-peer (P2P) network.
Tsis txhob siv lub hauv paus tswj cov cuab yeej (xws li lub router) qhov twg lub network cov ntaub ntawv tsis tu ncua nkag mus rau hauv thiab tawm ua ntej thiab tom qab ncav cuag cov menyuam yaus cov khoom siv (xws li xov tooj thiab khoos phis tawj), txhua qhov ntawm qhov ua rau ad hoc network xa cov ntaub ntawv sib npaug thoob plaws tag nrho cov qauv.
Wireless Ad Hoc Network Paub meej
Ua raws li yog qee qhov nta, siv, txiaj ntsig, thiab qhov tsis zoo ntawm ad hoc networks:
- Cov khoom siv kim tsis tsim nyog los teeb tsa kev sib tw, ad hoc network.
- Tsis muaj ib qho ntawm qhov ua tsis tiav hauv lub network ad hoc.
- Ad hoc tes hauj lwm muaj txiaj ntsig thaum koj xav tau faib cov ntaub ntawv lossis lwm cov ntaub ntawv ncaj qha nrog lwm lub computer tab sis tsis muaj kev nkag mus rau Wi-Fi network.
- Thaum muaj xwm txheej ceev uas lub wireless network tsim nyog tab sis tsis muaj lub hauv paus hauv paus siv, wireless ad hoc networks xa sai sai thiab tsim cov txiaj ntsig zoo sib xws.
- Ntau tshaj ib lub laptop tuaj yeem txuas rau ad hoc network, tsuav yog cov ntawv hloov pauv tau teeb tsa rau hom ad hoc thiab txuas rau tib SSID. Cov khoos phis tawj yuav tsum nyob hauv 100 meters ntawm ib leeg.
- Koj tuaj yeem siv ad hoc wireless network los qhia koj lub khoos phis tawj internet txuas nrog lwm lub computer.
- Tsis muaj lub hauv paus tswj hwm qhov chaw uas txhua yam khoom siv tuaj yeem tswj tau.
Types ntawm Wireless Ad Hoc Networks
Wireless ad hoc networks tau muab faib ua cov chav kawm. Nov yog qee qhov piv txwv:
- Mobile ad hoc network (MANET): Ad hoc network ntawm mobile devices.
- Vehicular ad hoc network (VANET): Siv rau kev sib txuas lus ntawm tsheb. Intelligent VANETs siv kev txawj ntse txawj ntse thiab ad hoc technologies los sib txuas lus dab tsi yuav tsum tshwm sim thaum muaj xwm txheej.
- Smartphone ad hoc network (SPAN): Wireless ad hoc network tsim ntawm smartphones ntawm cov thev naus laus zis uas twb muaj lawm xws li Wi-Fi thiab Bluetooth.
- Wireless mesh network: Lub mesh network yog ad hoc network uas cov nodes sib txuas lus ncaj qha rau ib leeg kom xa cov ntaub ntawv thoob plaws hauv lub network.
- Tub rog tactical MENT: Siv hauv pab tub rog rau kev sib txuas lus "ntawm-tus-tsav", wireless tactical ad hoc network tso siab rau ntau yam thiab ua haujlwm tam sim los tsim cov tes hauj lwm thaum xav tau.
- Wireless sensor network: Wireless sensors uas sau txhua yam los ntawm qhov kub thiab txias nyeem ntawv mus rau suab nrov thiab av noo tuaj yeem tsim ib lub network ad hoc kom xa cov ntaub ntawv mus rau hauv tsev yam tsis tas yuav tsum tau. txuas ncaj qha rau nws.
- Disaster cawm ad hoc network: Ad hoc tes hauj lwm tseem ceeb thaum muaj kev puas tsuaj thiab tsim kev sib txuas lus kho vajtse tsis ua haujlwm zoo.
Ad Hoc Wireless Network Limitations
Rau cov ntaub ntawv thiab lub tshuab luam ntawv sib koom, txhua tus neeg siv yuav tsum nyob hauv tib pab pawg ua haujlwm, lossis yog tias ib lub khoos phis tawj koom nrog lub npe, lwm tus neeg siv yuav tsum muaj nyiaj hauv lub khoos phis tawj ntawd kom nkag mus rau cov khoom sib koom.
Lwm cov kev txwv ntawm ad hoc wireless networking suav nrog qhov tsis muaj kev ruaj ntseg thiab cov ntaub ntawv qeeb. Ad hoc hom muaj kev ruaj ntseg tsawg; Yog tias cov neeg tawm tsam tuaj nyob hauv thaj tsam ntawm koj lub network ad hoc, lawv yuav tsis muaj teeb meem txuas.
Ntau dua Wi-Fi Direct thev naus laus zis tshem tawm ntau qhov kev txwv thiab kev hem kev nyab xeeb tam sim no hauv ad hoc wireless networks.
