Waht is MESH network

Mesh network ndeye "wireless grid network", ndeye "multi-hop" network, inogadzirwa kubva kune ad hoc network, ndiyo imwe yeakakosha matekinoroji ekugadzirisa "yekupedzisira mamaira" dambudziko.Mukuita kwekushanduka kune chizvarwa chinotevera network, isina waya ndiyo inodiwa tekinoroji.Wireless mesh inogona kutaurirana nekubatana nemamwe ma network, uye ine simba network yekuvaka iyo inogona kuramba ichiwedzerwa, uye chero maviri maturusi anogona kuchengetedza isina waya yekubatanidza.

General situation

Iine hunhu hweakawanda-hop yekubatanidza uye Mesh topology, isina waya mesh network yashanduka kuita mhinduro inoshanda kune akasiyana mawaya ekuwana network senge Broadband home network, nharaunda network, bhizinesi network uye metropolitan nharaunda network.Wireless Mesh routers inoumba AD hoc network kuburikidza ne-multi-hop yekubatanidza, iyo inopa kuvimbika kwepamusoro, kuvharwa kwesevhisi yakafara uye kudzikisa mutengo wepamberi weWMN network.WMN inogara nhaka yakawanda yehunhu hwewireless AD hoc network, asi pane zvimwe zvakasiyana.Kune rumwe rutivi, kusiyana nekufamba kwewireless Ad Hoc network nodes, nzvimbo ye wireless Mesh routers inowanzogadziriswa.Kune rumwe rutivi, zvichienzaniswa nemagetsi-akamanikidzika asina waya eAd Hoc network, wireless Mesh routers inowanzova nemagetsi akagadziriswa.Pamusoro pezvo, WMN zvakare yakasiyana newireless sensor network, uye zvinowanzo fungirwa kuti bhizinesi modhi pakati pewireless Mesh routers rakagadzikana, rakanyanya kufanana neyakajairwa kuwana network kana kambasi network.Naizvozvo, WMN inogona kuita senge network yekutumira ine masevhisi akagadzikana, senge echinyakare network network.Kana yaiswa kwenguva pfupi kumabasa enguva pfupi, WMNS inogona kazhinji kuita sechinyakare mobile AD hoc network.

Iyo yakajairwa dhizaini yeWMN ine matatu akasiyana isina waya network zvinhu: gedhi routers (marouta ane gedhi / bhiriji kugona), Mesh routers (yekuwana nzvimbo), uye Mesh vatengi (nharembozha kana neimwe nzira).Iyo Mesh mutengi yakabatana kune isina waya Mesh router kuburikidza neasina waya yekubatanidza, uye isina waya Mesh router inoumba yakagadzikana yekufambisa network nenzira yeakawanda-hop yekubatanidza.Mune yakajairika network dhizaini yeWMN, chero Mesh router inogona kushandiswa senge data rekutumira relay kune mamwe maMesh ma routers, uye mamwe maMesh ma routers anewo mamwe ekuwedzera kugona kweInternet magedhi.Iyo gedhi Mesh router inotungamira traffic pakati peWMN neInternet pamusoro pekumhanya-mhanya waya waya.Iyo yakajairika network yekuvaka yeWMN inogona kutariswa seine ndege mbiri, umo ndege yekupinda inopa network yekubatanidza kune Mesh vatengi, uye ndege yekuendesa mberi relay masevhisi pakati peMesh routers.Nekuwedzera kwekushandiswa kweiyo virtual wireless interface tekinoroji muWMN, iyo network yekuvaka yakagadzirwa neWMN yawedzera kufarirwa.

HUANET inogona kupa Huawei mbiri mbiri bhendi EG8146X5 WIFI6 Mesh onu.

MESH networking scheme

MuMesh networking, zvinhu zvakaita sekupindira kwechiteshi, kusarudzwa kwenhamba yehop uye kusarudzwa kwema frequency kunofanirwa kutariswa zvizere.Ichi chikamu chinotora WLANMESH yakavakirwa pa802.11s semuenzaniso wekuongorora akasiyana siyana anogoneka networking zvirongwa.Izvi zvinotevera zvinotsanangura single-frequency networking uye dual-frequency networking schemes nekuita kwavo.

Single frequency MESH networking

Iyo single-frequency networking scheme inonyanya kushandiswa munzvimbo dzine zviwanikwa uye frequency zviwanikwa.Yakakamurwa kuita single-frequency single-hop uye single-frequency multi-hop.Mune imwe-frequency networking, yese isina waya yekuwana nzvimbo Mesh AP uye waya yekuwana nzvimbo Root AP inoshanda mune imwechete frequency bhendi.Sezvinoratidzwa mumufananidzo 1, chiteshi 802.11b/g pa2.4GHz inogona kushandiswa kuwana uye kudzoka kutapurirana.Zvinoenderana neyakasiyana chiteshi chekupindira nharaunda panguva yekuitwa kwechigadzirwa uye network, chiteshi chinoshandiswa pakati pehops chinogona kunge chakazvimirira zvachose chisiri chekukanganisa chiteshi, kana panogona kunge paine imwe nzira yekupindira (yakawanda yekupedzisira munzvimbo chaimo. ).Muchiitiko ichi, nekuda kwekupindira pakati pemanodhi akavakidzana, node dzose hadzigoni kugamuchira kana kutumira panguva imwe chete, uye MAC nzira ye CSMA / CA inofanira kushandiswa kutaurirana muhuwandu hwe-multi-hop.Nekuwedzera kwehop count, bandwidth yakagoverwa kune imwe neimwe Mesh AP inoderera zvakanyanya, uye iyo chaiyo imwe frequency network performance ichave yakanyanya kushomeka.

Dual-frequency MESH networking

Mune mbiri-bhendi networking, imwe neimwe node inoshandisa maviri akasiyana frequency mabhendi ekudzokera kumashure uye kuwana.Semuenzaniso, sevhisi yenzvimbo yekuwana inoshandisa 2.4GHz 802.1lb/g chiteshi, uye musana Mesh backpass network inoshandisa 5.8GHz 802.11a chiteshi pasina kukanganisa.Nenzira iyi, imwe neimwe Mesh AP inogona kuita yekumashure uye yekumberi basa ichishandira vashandisi venzvimbo.Kuenzaniswa neiyo imwechete frequency network, iyo mbiri frequency network inogadzirisa dambudziko rekupindira kwechiteshi chekudzoka kumashure uye kuwana, uye inovandudza zvakanyanya mashandiro etiweki.Zvisinei, mumamiriro ezvinhu chaiwo uye kushamwaridzana kukuru, nokuti iyo yakafanana frequency band inoshandiswa pakati pe backhaul links, hapachina chivimbo chokuti hapana kupindira pakati pezviteshi.Naizvozvo, nekuwedzera kwehop count, bandwidth yakagoverwa kune imwe neimwe Mesh AP ichiri kuderera, uye Mesh AP iri kure neMudzi AP ichave isina kunaka mukuwana chiteshi.Naizvozvo, iyo hop count ye-dual-band networking inofanira kuiswa nekuchenjerera.