Dab tsi yog wireless ad hoc network
Ad Hoc network, tseem hu ua mobile ad hoc network (MANET), yog ib qho kev teeb tsa tus kheej ntawm lub xov tooj ntawm tes uas tuaj yeem sib txuas lus yam tsis muaj kev vam khom rau cov txheej txheem ua ntej lossis kev tswj hwm hauv nruab nrab. Lub network yog tsim dynamically raws li cov khoom siv tuaj rau hauv ntau yam ntawm ib leeg, tso cai rau lawv sib pauv cov ntaub ntawv ntawm cov phooj ywg-rau-peer.
Dab tsi yog cov yam ntxwv ntawm wireless ad hoc network?
Wireless ad hoc networks, tseem hu ua wireless self-organizing networks, muaj ob peb tus yam ntxwv sib txawv uas sib txawv ntawm cov kev sib txuas lus ib txwm siv. Cov yam ntxwv no tuaj yeem ua tiav raws li hauv qab no:
Decentralized thiab Self-Organizing
- Wireless ad hoc tes hauj lwm yog decentralized nyob rau hauv cov xwm, txhais tau tias tsis muaj central tswj node los yog infrastructure yuav tsum tau rau lawv cov lag luam.
- Cov nodes hauv lub network sib npaug ntawm cov xwm txheej thiab tuaj yeem sib txuas lus ncaj qha nrog ib leeg yam tsis muaj kev cia siab rau lub hauv paus chaw nres tsheb lossis qhov chaw nkag hauv nruab nrab.
- Lub network yog tus kheej-kev teeb tsa thiab kev teeb tsa tus kheej, tso cai rau nws tsim thiab hloov kho rau cov kev hloov pauv hauv ib puag ncig thiab cov chaw ntawm qhov chaw tau txais.
Dynamic Topology
Lub network topology (kev teeb tsa ntawm cov nodes thiab lawv cov kev sib txuas) hauv wireless ad hoc network yog qhov muaj zog heev.
Nodes tuaj yeem txav tau yooj yim, ua rau kev sib txuas ntawm lawv hloov tsis tu ncua.
Qhov dynamicity no yuav tsum tau routing algorithms uas tuaj yeem hloov kho sai sai rau kev hloov pauv hauv lub network topology thiab tswj kev sib txuas.
Multi-Hop Routing
- Hauv ib lub wireless ad hoc network, cov nodes yuav tsis tuaj yeem sib txuas lus ncaj qha rau ib leeg vim muaj kev sib kis tsawg.
- Txhawm rau kov yeej qhov kev txwv no, cov nodes tso siab rau ntau lub hop routing, qhov twg cov lus raug xa los ntawm ib qho mus rau lwm qhov kom txog thaum lawv mus txog lawv qhov chaw.
- Qhov no tso cai rau lub network los npog thaj tsam loj dua thiab tswj kev sib txuas txawm tias cov nodes tsis nyob hauv kev sib txuas lus ncaj qha.
Txwv Bandwidth thiab Kev Pabcuam
- Cov kev sib txuas lus wireless muaj qhov txwv bandwidth, uas tuaj yeem txwv tus nqi ntawm cov ntaub ntawv tuaj yeem xa mus rau txhua lub sijhawm.
- Tsis tas li ntawd, cov nodes hauv lub wireless ad hoc network tej zaum yuav muaj kev txwv lub zog thiab kev muaj peev xwm ua haujlwm, ntxiv rau kev txwv lub network cov peev txheej.
- Kev siv tau zoo ntawm cov peev txheej txwv no yog qhov tseem ceeb rau kev tswj xyuas kev ua haujlwm hauv network thiab kev ntseeg tau.
Ib ntus thiab Ad Hoc Xwm
Wireless ad hoc networks feem ntau yog siv rau qhov tshwj xeeb, ib ntus, xws li kev pab cuam kev puas tsuaj, kev ua tub rog, lossis cov xwm txheej ib ntus.
Lawv tuaj yeem teeb tsa sai thiab tawg raws li qhov xav tau, ua rau lawv hloov tau yooj yim rau cov xwm txheej hloov.
Kev Nyab Xeeb Kev Nyab Xeeb
Lub decentralized thiab dynamic xwm ntawm wireless ad hoc tes hauj lwm nthuav qhia tshwj xeeb kev ruaj ntseg cov nyom.
Cov txheej txheem kev ruaj ntseg qub, xws li firewalls thiab intrusion detection systems, tej zaum yuav tsis ua haujlwm zoo hauv cov tes hauj lwm no.
Cov txheej txheem kev ruaj ntseg siab tshaj thiab cov txheej txheem yuav tsum tau tiv thaiv lub network los ntawm kev tawm tsam thiab tswj cov ntaub ntawv ntiag tug thiab kev ncaj ncees.
Wireless ad hoc networks tej zaum yuav muaj cov nodes uas muaj peev xwm sib txawv, xws li kev sib kis sib txawv, kev ua haujlwm, thiab roj teeb lub neej.
Qhov no heterogeneity yuav tsum tau routing algorithms thiab raws tu qauv uas yuav hloov mus rau ntau haiv neeg cov yam ntxwv ntawm cov nodes nyob rau hauv lub network.
Heterogeneity
Wireless ad hoc networks tej zaum yuav muaj cov nodes uas muaj peev xwm sib txawv, xws li kev sib kis sib txawv, kev ua haujlwm, thiab roj teeb lub neej.
Qhov no heterogeneity yuav tsum tau routing algorithms thiab raws tu qauv uas yuav hloov mus rau ntau haiv neeg cov yam ntxwv ntawm cov nodes nyob rau hauv lub network.
Nyob rau hauv cov ntsiab lus, wireless ad hoc tes hauj lwm yog tus cwj pwm los ntawm lawv decentralization, tus kheej lub koom haum, dynamic topology, multi-hop routing, txwv bandwidth thiab cov kev pab cuam, ib ntus thiab ad hoc xwm, kev ruaj ntseg cov nyom, thiab heterogeneity. Cov yam ntxwv no ua rau lawv zoo rau ntau yam kev siv, suav nrog kev ua tub rog, kev pab cuam kev puas tsuaj, thiab cov xwm txheej ib ntus, qhov chaw sib txuas lus ib txwm siv tsis tau lossis siv tsis tau.
Post lub sij hawm: Lub Xya hli ntuj-14-2024
