Inethiwekhi ye-MESH

Inethiwekhi ye-mesh "yinethiwekhi yegridi engenazingcingo", yinethiwekhi "enama-hop amaninzi", yaphuhliswa kwinethiwekhi yexeshana, yenye yeendlela eziphambili zokusombulula ingxaki "yokugqibela". Kwinkqubo yokuguqukela kwinethiwekhi yesizukulwana esilandelayo, i-wireless yiteknoloji eyimfuneko. I-wireless mesh inokunxibelelana ngokubambisana nezinye iinethiwekhi, kwaye luyilo lwenethiwekhi oluguquguqukayo olunokwandiswa rhoqo, kwaye naziphi na izixhobo ezimbini zinokugcina unxibelelwano olungenazingcingo.

Imeko ngokubanzi

Ngeempawu zokunxibelelana kwe-multi-hop kunye ne-topology ye-Mesh, inethiwekhi ye-wireless mesh iguqukele kwisisombululo esisebenzayo kwiinethiwekhi ezahlukeneyo zokufikelela ngaphandle kwentambo ezifana nenethiwekhi yasekhaya ye-broadband, inethiwekhi yoluntu, inethiwekhi yamashishini kunye nenethiwekhi yendawo yedolophu. Ii-routers ze-Wireless Mesh zenza iinethiwekhi ze-AD hoc ngokusebenzisa ukunxibelelana kwe-multi-hop, okubonelela ngokuthembeka okuphezulu, ukugubungela inkonzo ebanzi kunye neendleko eziphantsi zangaphambili zenethiwekhi ye-WMN. I-WMN ifumana uninzi lweempawu zeenethiwekhi ze-AD hoc ezingenantambo, kodwa kukho umahluko othile. Kwelinye icala, ngokungafaniyo nokuhambahamba kwee-node zenethiwekhi ye-Ad Hoc engenantambo, indawo yee-routers ze-Mesh ezingenantambo idla ngokumiselwa. Kwelinye icala, xa kuthelekiswa neenethiwekhi ze-Ad Hoc ezingenantambo ezithintelwe ngamandla, ii-routers ze-Mesh ezingenantambo zihlala zinombane ozinzileyo. Ukongeza, i-WMN nayo yahlukile kwiinethiwekhi ze-sensor ezingenantambo, kwaye kudla ngokucingelwa ukuba imodeli yeshishini phakathi kwee-routers ze-Mesh ezingenantambo izinzile, ifana kakhulu nenethiwekhi yokufikelela eqhelekileyo okanye inethiwekhi yekhampasi. Ke ngoko, i-WMN inokusebenza njengenethiwekhi yokudlulisela phambili eneenkonzo ezizinzileyo, njengenethiwekhi yesiseko sendabuko. Xa isetyenziselwa okwethutyana imisebenzi yexesha elifutshane, i-WMNS inokusebenza njengeenethiwekhi ze-AD hoc zeselula zendabuko.

Uyilo oluqhelekileyo lwe-WMN luqulathe izinto ezintathu ezahlukeneyo zenethiwekhi engenazingcingo: ii-routers zesango (ii-routers ezinezakhono zesango/ibhulorho), ii-Mesh routers (indawo zokufikelela), kunye nee-Mesh clients (eziphathwayo okanye ezinye). I-Mesh client iqhagamshelwe kwi-router ye-Mesh engenazingcingo ngoqhagamshelo olungenazingcingo, kwaye i-router ye-Mesh engenazingcingo yenza inethiwekhi yokudlulisela ezinzileyo ngendlela yoqhagamshelo oluninzi. Kwi-architecture yenethiwekhi eqhelekileyo ye-WMN, nayiphi na i-Mesh router ingasetyenziswa njenge-relay yokudlulisela idatha kwezinye ii-Mesh routers, kwaye ezinye ii-Mesh routers nazo zinamandla ongezelelweyo e-Internet gateways. I-gateway Mesh router idlulisela ithrafikhi phakathi kwe-WMN kunye ne-Intanethi ngekhonkco elinocingo olukhawulezayo. Uyilo oluqhelekileyo lwenethiwekhi ye-WMN lunokuthathwa njengoluquka iiplane ezimbini, apho iplane yokufikelela ibonelela ngoqhagamshelo lwenethiwekhi kwii-client ze-Mesh, kunye neenkonzo zokudlulisela phambili zeplane yokudlulisela phambili phakathi kwee-routers ze-Mesh. Ngokusetyenziswa okwandayo kwetekhnoloji ye-interface engenazingcingo ebonakalayo kwi-WMN, uyilo lwenethiwekhi oluyilwe yi-WMN luye lwathandwa ngakumbi nangakumbi.

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

Isicwangciso sothungelwano lwe-MESH

Kwinethiwekhi yeMesh, izinto ezifana nokuphazamiseka kwetshaneli, ukukhethwa kwenombolo ye-hop kunye nokukhethwa kwamaza kufuneka ziqwalaselwe ngokupheleleyo. Eli candelo lithatha i-WLANMESH ngokusekelwe kwi-802.11s njengomzekelo wokuhlalutya izicwangciso ezahlukeneyo zokunxibelelana ezinokubakho. Oku kulandelayo kuchaza izicwangciso zokunxibelelana ze-single-frequency kunye ne-dual-frequency kunye nokusebenza kwazo.

Uthungelwano lwe-MESH oluqhelekileyo olunye

Iskimu sothungelwano lwe-single-frequency sisetyenziswa kakhulu kwiindawo apho izixhobo kunye nezixhobo ze-frequency zinqongophele khona. Yahlulwe yaba yi-single-frequency single-hop kunye ne-single-frequency multi-hop. Kwi-single-frequency networking, yonke indawo yokufikelela engenazingcingo i-Mesh AP kunye ne-wireless access point Root AP zisebenza kwi-frequency band efanayo. Njengoko kubonisiwe kuMfanekiso 1, itshaneli 802.11b/g kwi-2.4GHz ingasetyenziselwa ukufikelela kunye nokudlulisela umva. Ngokwemeko-bume yokuphazamiseka kwetshaneli ngexesha lokuphunyezwa kwemveliso kunye nenethiwekhi, itshaneli esetyenziswa phakathi kwee-hops inokuba yitshaneli ezimeleyo ngokupheleleyo engaphazamisiyo, okanye kunokubakho itshaneli ethile yokuphazamiseka (uninzi lwale yokugqibela kwindawo yokwenyani). Kule meko, ngenxa yokuphazamiseka phakathi kwee-nodes ezikufutshane, zonke ii-nodes azinakufumana okanye zithumele ngaxeshanye, kwaye indlela ye-MAC ye-CSMA/CA kufuneka isetyenziswe ukuxoxisana kuluhlu lwee-multi-hop. Ngokwanda kwenani le-hop, i-bandwidth eyabelwe i-Mesh AP nganye iya kuncipha kakhulu, kwaye ukusebenza kwenethiwekhi ye-single frequency kuya kuncitshiswa kakhulu.

Uthungelwano lwe-MESH oluphindaphindwayo kabini

Kwinethiwekhi ye-dual-band, i-node nganye isebenzisa iibhendi ezimbini ezahlukeneyo ze-frequency kwi-backpass kunye nokufikelela. Umzekelo, inkonzo yokufikelela yasekuhlaleni isebenzisa itshaneli ye-2.4GHz 802.1lb/g, kwaye inethiwekhi ye-backbone Mesh backpass isebenzisa itshaneli ye-5.8GHz 802.11a ngaphandle kokuphazamiseka. Ngale ndlela, i-Mesh AP nganye inokwenza umsebenzi we-backpass kunye ne-forward ngelixa ikhonza abasebenzisi bokufikelela basekuhlaleni. Xa kuthelekiswa nenethiwekhi ye-single frequency, inethiwekhi ye-dual frequency isombulula ingxaki yokuphazamiseka kwetshaneli yokudluliselwa kwe-back kunye nokufikelela, kwaye iphucula kakhulu ukusebenza kwenethiwekhi. Nangona kunjalo, kwimeko-bume yokwenyani kunye nenethiwekhi enkulu, kuba ibhendi ye-frequency efanayo isetyenziswa phakathi kweekhonkco ze-backhaul, akusekho siqinisekiso sokuba akukho kuphazamiseka phakathi kweetshaneli. Ke ngoko, ngokwanda kwenani le-hop, i-bandwidth eyabelwe i-Mesh AP nganye isathanda ukwehla, kwaye i-Mesh AP ekude ne-Root AP iya kuba sengozini ekufikeleleni kwitshaneli. Ke ngoko, inani le-hop lenethiwekhi ye-dual-band kufuneka libekwe ngononophelo.