Waht yinethiwekhi ye-MESH

Inethiwekhi ye-Mesh "yinethiwekhi yegridi engenacingo", yinethiwekhi "ye-multi-hop", iphuhliswe kwinethiwekhi ye-ad hoc, yenye yezobuchwepheshe obuphambili ukusombulula ingxaki "yemayile yokugqibela".Kwinkqubo yendaleko kwinethiwekhi yesizukulwana esilandelayo, itekhnoloji engenazingcingo yitekhnoloji eyimfuneko.Umnatha ongenazingcingo unokunxibelelana ngokubambisana namanye amanethiwekhi, kwaye luyilo lwenethiwekhi oluguquguqukayo olunokwandiswa ngokuqhubekayo, kwaye naziphi na izixhobo ezibini zinokugcina unxibelelwano olungenazingcingo.

Imeko ngokubanzi

Ngeempawu zokudityaniswa kwe-multi-hop kunye ne-Mesh topology, inethiwekhi ye-wireless mesh iye yavela kwisisombululo esisebenzayo kwiinethiwekhi ezahlukeneyo zokufikelela ngaphandle kwamacingo ezifana nenethiwekhi yasekhaya ebanzi, inethiwekhi yoluntu, inethiwekhi yeshishini kunye nenethiwekhi yendawo yemetropolitan.Iirutha ze-Wireless Mesh zenza uthungelwano lwe-AD hoc ngokusebenzisa uqhagamshelwano lwe-hop ezininzi, olubonelela ngokuthembeka okuphezulu, ukugutyungelwa kwenkonzo ebanzi kunye neendleko eziphantsi zangaphambili zothungelwano lweWMN.I-WMN idla ilifa uninzi lweempawu zeenethiwekhi ezingenazingcingo ze-AD hoc, kodwa kukho umahluko.Ngakolunye uhlangothi, ngokungafaniyo nokuhamba kwee-wireless ze-Ad Hoc network nodes, indawo ye-wireless Mesh routers idla ngokulungiswa.Ngakolunye uhlangothi, xa kuthelekiswa neenethiwekhi ze-Ad Hoc ezingenazintambo ezingenazintambo, ii-wireless Mesh routers zihlala zine-fixed power supply.Ukongeza, i-WMN iphinde yahluke kuthungelwano lwe-sensor ye-wireless, kwaye ngokuqhelekileyo kucingelwa ukuba imodeli yeshishini phakathi kwe-wireless Mesh routers izinzile, ifana ngakumbi nenethiwekhi yokufikelela eqhelekileyo okanye inethiwekhi yekhampasi.Ngoko ke, i-WMN inokusebenza njengothungelwano lokudlulisela oluneenkonzo ezizinzileyo, ezifana nothungelwano lweziseko ezingundoqo zemveli.Xa ibekwe okwexeshana kwimisebenzi yexesha elifutshane, i-WMNS inokusebenza njengothungelwano lwe-AD hoc lwemveli.

Ulwakhiwo oluqhelekileyo lwe-WMN luquka izinto ezintathu ezahlukeneyo zenethiwekhi engenazingcingo: iirotha zesango (iirutha ezinesango/ibhulorho amandla), iirotha zeMesh (iindawo zofikelelo), kunye nabaxhasi beMesh (iselula okanye ngenye indlela).Umxhasi we-Mesh uqhagamshelwe kwi-router ye-wireless Mesh ngoqhagamshelwano olungenacingo, kwaye i-wireless Mesh router yenza inethiwekhi yokudlulisa ngokuthe tye ngendlela ye-multi-hop interconnection.Kulwakhiwo lwenethiwekhi ngokubanzi ye-WMN, nayiphi na i-router ye-Mesh inokusetyenziswa njenge-relay yokudlulisa idatha yezinye ii-router ze-Mesh, kwaye ezinye ii-router ze-Mesh zikwanazo ezongezelelweyo zamasango e-Intanethi.I-Gateway Mesh router iqhubela phambili itrafikhi phakathi kwe-WMN kunye ne-Intanethi ngekhonkco elineentambo ezinesantya esiphezulu.Uyilo lwenethiwekhi ngokubanzi ye-WMN inokuthathwa njengento ebandakanya iinqwelomoya ezimbini, apho inqwelomoya yokufikelela ibonelela ngoqhagamshelo lwenethiwekhi kubaxhasi beMesh, kunye nenqwelomoya yokudlulisela phambili iinkonzo zokudlulisa phakathi kweMesh routers.Ngokusetyenziswa okwandayo kwethekhnoloji yojongano olungenazingcingo kwi-WMN, ulwakhiwo lwenethiwekhi eyilwe yi-WMN iye yathandwa ngakumbi.

I-HUANET inokubonelela nge-Huawei band ezimbini EG8146X5 WIFI6 Mesh onu.

ISkimu sothungelwano lwe-MESH

Kuthungelwano lweMesh, izinto ezinjengokuphazamiseka kwetshaneli, ukukhetha inani le-hop kunye nokukhetha amaza obuninzi kufuneka kuthathelwe ingqalelo ngokupheleleyo.Eli candelo lithatha i-WLANMESH esekelwe kwi-802.11s njengomzekelo wokuhlalutya iindlela ezahlukeneyo zothungelwano ezinokubakho.Oku kulandelayo kuchaza i-single-frequency networking kunye ne-double-frequency networking schemes kunye nokusebenza kwazo.

Uthungelwano lwe-MESH oluphindaphindiweyo

Iskimu sothungelwano lwe-frequency single-frequency networking scheme sisetyenziswa ikakhulu kwiindawo apho izixhobo kunye ne-frequency resources zilinganiselwe.Yahlulwe yaba yi-single-frequency single-hop kunye ne-single-frequency multi-hop.Kwinethiwekhi ye-frequency enye, yonke indawo yokufikelela engenazingcingo iMesh AP kunye nendawo yofikelelo enentambo Root AP isebenza kwibhendi efanayo.Njengoko kuboniswe kwi-Figure 1, i-channel 802.11b / g kwi-2.4GHz ingasetyenziselwa ukufikelela kunye nokubuyisela ukuhanjiswa.Ngokwemeko-bume yongenelelo olwahlukileyo lwejelo ngexesha lokuphunyezwa kwemveliso kunye nothungelwano, ijelo elisetyenziswa phakathi kweehops linokuba lijelo elizimeleyo ngokupheleleyo elingaphazanyiswayo, okanye kusenokubakho umjelo othile wophazamiseko (uninzi lwalo lwamva kwindawo eyiyo kanye. ).Kule meko, ngenxa yokuphazamiseka phakathi kwee-nodes ezingabamelwane, zonke iindawo azikwazi ukufumana okanye ukuthumela ngexesha elifanayo, kwaye indlela ye-MAC ye-CSMA / CA kufuneka isetyenziswe ukuxoxisana kwi-multi-hop range.Ngokunyuka kwe-hop count, i-bandwidth eyabelwe i-Mesh AP nganye iya kuncipha ngokukhawuleza, kwaye ukusebenza kwenethiwekhi ye-frequency eyodwa kuya kulinganiselwa kakhulu.

Uthungelwano lwe-MESH oluphindwe kabini

Kuthungelwano lweebhendi ezimbini, indawo nganye isebenzisa iibhendi ezimbini ezahlukeneyo zokuphindaphinda umva kunye nokufikelela.Ngokomzekelo, inkonzo yokufikelela kwendawo isebenzisa i-2.4GHz 802.1lb / g channel, kunye ne-backbone Mesh backpass network isebenzisa i-5.8GHz 802.11a ishaneli ngaphandle kokuphazamiseka.Ngale ndlela, iMesh AP nganye inokwenza umva kunye nomsebenzi wangaphambili ngelixa usebenzela abasebenzisi bokufikelela basekhaya.Xa kuthelekiswa nenethiwekhi yefrikhwensi enye, inethiwekhi ye-frequency ephindwe kabini isombulula ingxaki yokuphazamiseka kwejelo yokuhanjiswa ngasemva kunye nokufikelela, kwaye iphucula kakhulu ukusebenza kwenethiwekhi.Nangona kunjalo, kwindawo eyiyo kunye nenethiwekhi enkulu, kuba i-band frequency efanayo isetyenziswa phakathi kwe-backhaul links, akusekho siqinisekiso sokuba akukho ukuphazamiseka phakathi kwamajelo.Ngoko ke, ngokunyuka kwe-hop count, i-bandwidth eyabelwe i-Mesh AP nganye iyancipha ukuhla, kwaye i-Mesh AP ekude ne-Root AP iya kuba yinto engafanelekanga ekufikeleleni kwesiteshi.Ke ngoko, ukubala kwehop yothungelwano lweebhendi ezimbini kufuneka kusetwe ngononophelo.