Matau

1. Mesh Introduction

Ko te punaha whatunga ad hoc ahokore mesh he punaha whakawhiti korero rongorau aunui pūkoro i hangaia me te ariā hou o te a “whatunga mata ahokore”. Ka taea e nga pona katoa o te punaha te mohio ki te taunekeneke o nga korero rongorau penei i te reo maha-hongere, raraunga, me nga whakaahua i raro i nga tikanga kore-raina me te tere haere, te whakamahi i te hoahoanga whatunga tohatoha me te kore he whatunga ad hoc pokapū. I taua wa ano, ka tautokohia e te punaha tetahi hanganga topology whatunga, ka taea e ia taputapu node te neke tere me te matapōkeretia, a ka taea te whakahou i te topology o te punaha me te kore e pa ki te tuku punaha. He waatea te punaha whanui ki te hora, ngawari ki te whakamahi, ngawari ki te whakahaere, me te ngawari ki te tiaki.

2. Nga painga o te punaha mesh

• Karekau he whatunga pokapū, ka taea te tuku ngawari i runga i te hiahia, kaore he tautoko hanganga penei i te ruma rorohiko me te whatunga tuku, a ka taea te whakarite i nga hononga honohono.
• Kua whakatapua te whatunga tūmataiti, me te hononga tuku ahokore kaore he utu hono, he utu hokohoko ranei.
• Tautokohia te whakarōpūtanga aroākapa me te whatunga tīpokapoka hei whakawhānui ake i te kaha o te whakawhitiwhiti korero.
• Ki te mahi hopping auau, ka taea e ia te whakapai ake i nga mahi aukati me te aukati i te whai waahi; ka taea e te whakaurunga o te mahi tātari matihiko te whakakore i te pokanoa mamao. I taua wa ano, ka whakamahia te tikanga tuku ARQ hei whakaiti i te tere o te mate o te tuku raraunga me te whakapai ake i te pono o te tuku raraunga.
• Ka tautokohia e te tuku maramara raraunga te tuku maramara rerekee o nga momo raraunga pakihi. Me te kaha whakawhiti aunui, it can support multimedia services such as clear voice, broadband data, and high-definition video.
• The image has self-adaptive adjustment capability, which fully guarantees the continuity and fluency of data, ataata, and other services.
• Adopt COFDM technology and strong anti-multipath ability.
• Using dual antennas, pūihi 1 and antenna 2 support TDD dual transmission and dual reception, and can transmit/receive diversity.

3. Mesh Application areas

The wireless Mesh self-organizing network system can meet various complex communication needs such as large-scale event security patrols, urban anti-terrorism, and stability command, emergency rescue command and dispatch, fire emergency communication command, and ship formation shore-to-sea intercommunication. It is widely used in police, ahi, mana, petroleum, tiaki wai, forestry, radio and television, medical, water and air communications, and other sectors.

4. Mesh System Features

Centerless co-frequency ad hoc network

Mesh wireless ad hoc network system is a non-central co-frequency system, all nodes have equal status, a single frequency point supports TDD two-way communication, frequency management is simple, and spectrum utilization is high. Any node device can be used as an end node, relay node or command node in the network. A wireless communication network can be quickly established at any time and place without relying on any other fixed communication network facilities (such as optical fibers, copper cables, etc.). All non-center co-frequency self-organizing network devices, including outdoor fixed stations, vehicle-mounted stations, individual portable stations, etc., can automatically form a wireless mesh network and communicate with each other in real-time just by powering on.

High reliability

Ko te teihana turanga waea pūkoro Mesh ad hoc ahokore e mau ana i te hoahoa paerewa hoia: he kawe, roa, parewai, me te pehu, he pai mo nga momo taiao kino, a ka taea te tuku tere ki te whakatutuki i nga hiahia korero o nga waahi ohorere. I roto i te whatunga WLAN tuku iho, ki te rahua te hono o te AP, e kore e taea e nga kiritaki katoa i te AP te uru ki te whatunga WLAN. Ko te Mesh Ahokore nga ahuatanga o te whatunga whakahaere whaiaro me te whakaora whaiaro. Na reira, Ko nga kopuku AP kei te whatunga Mesh he maha nga hononga e waatea ana, ka taea te karo i tetahi waahi o te kore.

Te kaha nekeneke

Ko te puta ohoreretanga he tino koretake, a, ko te waahi huihuinga he rerekee, na i runga ano i nga ahuatanga ohorere, he mea tika ki te whakatu i nga teihana turanga kawe rangitahi i runga i te waahi i runga i nga tikanga o te rohe. He rangitahi te teihana turanga kawe kawe, ka whakatauhia i te wa e noho ana te waahi ka tangohia ka mutu te huihuinga.

Te hora tere

I mua i nga aitua, me pehea te hopu i nga korero hihiko o te waahi i roto i te waa, tika, tere, ka whai waahi nui te ahua hohonu ki te taea e nga rangatira o nga taumata katoa te whakatau tika me te whakatau i te whakatau whawhai. Ko te whatunga ahokore Mesh ad hoc te teihana turanga kawe mahi teitei e whakamahi ana i te whatunga auau kotahi, e ngana ana ki te whakangawari i te whirihoranga i runga i te papaanga me te uaua ki te whakatakoto ki te nui rawa atu, me te whakatutuki i nga whakaritenga a nga kaiwhaiwhai o mua mo te hanga whatunga tere me te whirihoranga kore i raro i nga tikanga ohorere.

Ko te whakawhiti-kore-raina (NLOS)

Ko te whirihoranga NLOS ka ngawari te mohio ma te whakamahi i te hangarau whatunga Mesh ad hoc, a ka taea e tana ahuatanga rei aunoa te mohio ki te tuku i runga-te-paepae. te tawhiti mai i te kopuku whainga. Nga hangarau matua hei whakaoti i te “maero whakamutunga” raruraru mo nga momo mara.

Te hōkaiipurangi raraunga teitei mo te nekehanga tere

Ko te whanuitanga raraunga teitei o te punaha whatunga ad hoc ahokore Mesh he 28Mbps. Ko nga pona he kaha tuku waea kore-mau, me te nekehanga tere kaore e pa ki nga ratonga bandwidth raraunga teitei, penei i te reo, raraunga, me nga ratonga ataata, e kore e pa ki nga huringa tere i roto i te topology punaha me te tere tere o nga waahanga.

Te haumaru me te muna

He momo tikanga whakamunatanga ano te punaha penei i te whakamunatanga whakarōpū (auau mahi, mokowhiti kawe, tawhiti whakawhitiwhiti, aratau whatunga, MESHID, etc.), whakamunatanga hongere, me te whakamunatanga puna. Ka haukotia nga korero ka pakaru, te whakarite i te haumarutanga teitei o te whatunga me nga korero.