Network yemesh i "network yegrid isina waya", network ye "multi-hop", yakagadzirwa kubva kune network ye ad hoc, ndeimwe yematekinoroji akakosha ekugadzirisa dambudziko re "last mile". Mukufambira mberi kwe network yechizvarwa chinotevera, wireless tekinoroji inokosha. Wireless mesh inogona kutaurirana pamwe chete nedzimwe network, uye i network architecture ine simba inogona kuramba ichiwedzerwa, uye chero zvishandiso zviviri zvinogona kuchengetedza wireless interconnection.
Mamiriro ezvinhu ese
Nehunhu hwekubatana kwe multi-hop uye Mesh topology, network ye wireless mesh yakashanduka kuita mhinduro inoshanda kune akasiyana-siyana ma network ekuwana waya akadai se network ye broadband home, network yemunharaunda, network yebhizinesi uye network yenzvimbo yemaguta. Ma router e Wireless Mesh anoumba ma network e AD hoc kuburikidza ne multi-hop interconnection, iyo inopa kuvimbika kwakanyanya, kufukidzwa kwebasa rakakura uye mutengo wakaderera weWMN network. WMN inotora nhaka yakawanda yehunhu hwe network dze wireless AD hoc, asi pane misiyano. Kune rumwe rutivi, kusiyana nekufamba kwema node e network dze wireless Ad Hoc, nzvimbo yema router e wireless Mesh inowanzo gadziriswa. Kune rumwe rutivi, zvichienzaniswa nema network e wireless Ad Hoc ane simba rakawanda, ma router e wireless Mesh anowanzo kuve nemagetsi akagadzika. Pamusoro pezvo, WMN yakasiyanawo nema network e wireless sensor, uye zvinowanzo fungidzirwa kuti modeli yebhizinesi pakati pema router e wireless Mesh yakagadzikana, yakafanana ne network yakajairika yekuwana kana network ye campus. Naizvozvo, WMN inogona kushanda se network yekutumira ine masevhisi akagadzika, senge network yezvivakwa zvechinyakare. Kana ikashandiswa kwenguva pfupi kumabasa enguva pfupi, WMNS inogona kazhinji kushanda se network dze mobile AD hoc dzechinyakare.
Magadzirirwo akajairika eWMN ane zvinhu zvitatu zvakasiyana zvenetwork isina waya: marouter egedhi (marouter ane gateway/bridge capabilities), maMesh routers (access points), uye maMesh clients (mobile kana zvimwewo). Mesh client yakabatana newireless Mesh router kuburikidza newireless connection, uye wireless Mesh router inogadzira network yekufambiswa kwedata yakagadzikana muchimiro che multi-hop interconnection. Mu general network architecture yeWMN, chero Mesh router inogona kushandiswa sedata forwarding relay kune mamwe maMesh routers, uye mamwe maMesh routers anewo kugona kwekuwedzera kwemagedhi eInternet. Gateway Mesh router inofambisa traffic pakati peWMN neInternet kuburikidza ne high-speed wired link. General network architecture yeWMN inogona kuonekwa seine mapuraneti maviri, umo access plane inopa network connections kune maMesh clients, uye forwarding plane forwards relay services pakati peMesh routers. Nekuwedzera kwekushandiswa kwe virtual wireless interface technology muWMN, network architecture yakagadzirwa neWMN yave kufarirwa zvakanyanya.
HUANET inogona kupa Huawei dual band EG8146X5 WIFI6 Mesh onu.
Chirongwa chekubatanidza network cheMESH
MuMesh networking, zvinhu zvakaita sekupindira kwechiteshi, kusarudzwa kwenhamba yehop uye kusarudzwa kwema frequency zvinofanirwa kutariswa zvizere. Chikamu chino chinotora WLANMESH zvichibva pa802.11s semuenzaniso wekuongorora zvirongwa zvakasiyana-siyana zve networking. Zvinotevera zvinotsanangura zvirongwa zve networking ye single-frequency uye dual-frequency uye mashandiro azvo.
Networking ye MESH inofambiswa nefrequency imwe chete
Chirongwa chekubatanidza ma "single-frequency" chinonyanya kushandiswa munzvimbo dzine michina nezviwanikwa zve "frequency" zvishoma. Chakakamurwa kuita "single-frequency single-hop" uye "single-frequency multi-hop". Mu "single-frequency networking", "wireless access point" yese ye "Mesh AP" uye "wired access point Root AP" zvinoshanda mu "frequency band" imwe chete. Sezvakaratidzwa muMufananidzo 1, "channel 802.11b/g" pa2.4GHz inogona kushandiswa pakutumira nekutumira ma "access". Zvichienderana nemamiriro akasiyana e "channel interference" panguva yekushandiswa kwechigadzirwa ne "network", "channel" inoshandiswa pakati pe "hops" inogona kunge iri "non-interference channel" yakazvimirira zvachose, kana kuti panogona kunge paine "interference channel" (yakawanda ye "latter" iri munzvimbo chaiyo). Muchiitiko ichi, nekuda kwe "interference" pakati pe "nodes" dziri pedyo, "nodes" dzese hadzigone kugamuchira kana kutumira panguva imwe chete, uye "MAC mechanism" yeCSMA/CA inofanira kushandiswa kutaurirana mu "multi-hop range". Nekuwedzera kwe "hop count", "bandwidth" yakagoverwa kune yega yega ye "Mesh AP" ichaderera zvakanyanya, uye "single frequency network performance" ichave yakaganhurirwa zvikuru.
Kubatana kweMESH kwema frequency maviri
Mu network ye dual-band, node yega yega inoshandisa ma frequency band maviri akasiyana e backpass ne access. Semuenzaniso, local access service inoshandisa 2.4GHz 802.1lb/g channel, uye backbone Mesh backpass network inoshandisa 5.8GHz 802.11a channel pasina kupindirana. Nenzira iyi, yega yega Mesh AP inogona kuita backpass ne forward function uku ichishandira vashandisi ve local access. Kana ichienzaniswa ne single frequency network, dual frequency network inogadzirisa dambudziko re channel interference re back transmission ne access, uye inovandudza zvikuru mashandiro e network. Zvisinei, munzvimbo chaiyo uye network yakakura, nekuti frequency band imwe chete inoshandiswa pakati pe backhaul links, hapana vimbiso yekuti hapana kupindirana pakati pe channels. Naizvozvo, nekuwedzera kwe hop count, bandwidth yakagoverwa kune yega yega Mesh AP ichiri kudzikira, uye Mesh AP iri kure neRoot AP ichave panjodzi mu access channel. Nokudaro, hop count ye dual-band networking inofanira kuiswa nekungwarira.
Nguva yekutumira: Ndira-12-2024