OXC (optical cross-connect) ishanduro yakashandurwa yeROADM (Reconfigurable Optical Add-Drop Multiplexer).
Seyakanyanya kuchinjika chinhu che optical network, iyo scalability uye mutengo-kushanda kweOptical cross-connects (OXCs) haingotaridzi kuchinjika kwetiweki topologies asiwo inokonzeresa zvakanangana nekuvaka uye kushanda uye kugadzirisa mutengo wemahombe-akakura optical network. Mhando dzakasiyana dzeOXCs dzinoratidza misiyano yakakura mudhizaini yekuvaka uye kuita basa.
Mufananidzo uri pazasi unoratidza chinyakare CDC-OXC (Colorless Directionless Conctionless Optical Cross-Connect) chivakwa, chinoshandisa wavelength selective switch (WSSs). Kudivi remutsara, 1 × N uye N × 1 WSSs inoshanda senge ingress/egress modules, nepo M × K WSSs padivi rekuwedzera/kudonhedza inotarisira kuwedzera uye kudonha kwemafunguro. Aya ma module akabatanidzwa kuburikidza neoptical fibers mukati meOXC backplane.
Mufananidzo: Traditional CDC-OXC Architecture
Izvi zvinogona zvakare kuwanikwa nekushandura iyo yekumashure kuita network yeSpanke, zvichikonzera yedu Spanke-OXC architecture.
Mufananidzo: Spanke-OXC Architecture
Mufananidzo uri pamusoro unoratidza kuti kudivi remutsara, iyo OXC inosanganiswa nemhando mbiri dzechiteshi: inotungamira madoko uye fiber ports. Chiteshi chega chega chinonangana negwara renzvimbo yeOXC munetiweki topology, nepo imwe neimwe fiber port inomiririra maviri e bidirectional fibers mukati meinotungamira chiteshi. Chiteshi chekutungamira chine akawanda bidirectional fiber pairs (kureva, akawanda fiber ports).
Nepo iyo Spanke-yakavakirwa OXC inobudirira isingavharidzire switching kuburikidza yakabatana yakazara backplane dhizaini, zvipimo zvayo zvinova zvakanyanya kukosha sezvo network traffic inowedzera. Iyo chiteshi chekuverenga muganho wekutengesa wavelength selective switch (semuyenzaniso, yazvino inotsigirwa inotsigirwa ndeye 1 × 48 madoko, akadai seFinisar's FlexGrid Twin 1 × 48) zvinoreva kuti kuwedzera chiyero cheOXC kunoda kutsiva zvese hardware, inodhura uye inodzivirira kushandiswazve kwemidziyo iripo.
Kunyangwe iine yakakwirira-dimensional OXC yekuvaka yakavakirwa paClos network, ichiri kuvimba neinodhura M×N WSSs, zvichiita kuti zviome kuzadzisa zvinodiwa zvekusimudzira.
Kuti vagadzirise dambudziko iri, vaongorori vakakurudzira rivheti yekuvaka yakasanganiswa: HMWC-OXC (Hybrid MEMS uye WSS Clos Network). Nekubatanidza microelectromechanical systems (MEMS) uye WSS, iyi dhizaini inochengetedza iri pedyo-isingavharidzi kushanda uku ichitsigira "kubhadhara-se-iwe-kukura" kukwanisa, kupa nzira inodhura-inobudirira yekusimudzira yevashandi ve optical network.
Iyo yakakosha dhizaini yeHMWC-OXC iri mune yayo matatu-layer Clos network chimiro.
Mufananidzo: Spanke-OXC Architecture Yakavakirwa paHMWC Networks
High-dimensional MEMS optical switches inoiswa pane yekupinza uye yekubuda layer, seye 512 × 512 chiyero parizvino inotsigirwa nehunyanzvi hwazvino, kugadzira dziva rechiteshi chengarava. Iyo yepakati layer ine akati wandei madiki eSpanke-OXC module, akabatana kuburikidza ne "T-ports" kudzikamisa kusangana kwemukati.
Muchikamu chekutanga, vashandisi vanogona kuvaka zvivakwa zvichibva pane iripo Spanke-OXC (semuenzaniso, 4 × 4 chiyero), vachingoendesa MEMS switch (semuenzaniso, 32 × 32) pane yekupinza uye yekubuda layer, vachichengeta imwe chete Spanke-OXC module muchikamu chepakati (munyaya iyi, nhamba yeT-ports i zero). Sezvo simba retiweki rinodiwa richiwedzera, matsva eSpanke-OXC modules anowedzerwa zvishoma nezvishoma kune yepakati layer, uye T-ports inogadziriswa kubatanidza ma modules.
Semuenzaniso, kana uchiwedzera huwandu hwepakati dhiza modules kubva kune imwe kusvika kune mbiri, nhamba yeT-ports inoiswa kune imwe, ichiwedzera chiyero chese kubva kune mana kusvika matanhatu.
Mufananidzo: HMWC-OXC Muenzaniso
Iyi nzira inotevera parameter inomanikidza M> N × (S - T), apo:
M ndiyo nhamba yeMEMS ports,
N ndiyo nhamba yepakati layer modules,
S ndiyo nhamba yemadoko mune imwe Spanke-OXC, uye
T ndiyo nhamba yezviteshi zvakabatana.
Nekugadzirisa zvine simba aya ma paramita, HMWC-OXC inogona kutsigira kuwedzera zvishoma nezvishoma kubva pachikero chekutanga kusvika pachiyero chakatarwa (semuenzaniso, 64 × 64) pasina kutsiva zvese zviwanikwa zvehardware kamwechete.
Kuti vaone kuita chaiko kwechivakwa ichi, timu yekutsvagisa yakaita ongororo yekutevedzera yakavakirwa pane zvine simba nzira yekuona nzira.
Mufananidzo: Kuvhara Kuita kweHMWC Network
Iyo simulation inoshandisa Erlang traffic modhi, kufungidzira zvikumbiro zvesevhisi zvinotevera kugoverwa kwePoisson uye nguva dzekubata sevhisi dzinotevera kugovera kwakashata. Iyo yakazara traffic mutoro wakaiswa ku3100 Erlangs. Iyo yakanangwa OXC dimension ndeye 64 × 64, uye yekupinda uye yekubuda layer MEMS chiyero zvakare 64 × 64. Iyo yepakati layer Spanke-OXC module masisitimu anosanganisira 32 × 32 kana 48 × 48 tsanangudzo. Huwandu hweT-ports hunotangira pa0 kusvika 16 zvichienderana nemamiriro ezvinhu.
Mhedzisiro inoratidza kuti, muchiitiko chine nhanho yeD = 4, mukana wekuvharira weHMWC-OXC uri padyo neiyo yechinyakare Spanke-OXC baseline (S(64,4)). Semuenzaniso, uchishandisa iyo v (64,2,32,0,4) gadziriso, mukana wekuvhara unowedzera neanosvika 5% chete pasi pemutoro wepakati. Kana chiyero chekutungamira chichiwedzera kusvika kuD = 8, mukana wekuvhara unowedzera nekuda kwe "trunk effect" uye kuderera kwehurefu hwefiber munzira imwe neimwe. Zvisinei, nyaya iyi inogona kunyatsogadziriswa nekuwedzera nhamba yeT-ports (somuenzaniso, v (64,2,48,16,8) configuration).
Zvikuru, kunyangwe kuwedzera kwepakati-layer modules kunogona kukonzera kuvharika kwemukati nekuda kwekukakavadzana kweT-port, iyo yakazara dhizaini inogona kuramba ichiita yakagadziridzwa kuita kuburikidza nekumisikidzwa kwakakodzera.
Ongororo yemitengo inowedzera kuratidza zvakanakira HMWC-OXC, sezvinoratidzwa pamufananidzo uri pazasi.
Mufananidzo: Kuvharira Mukana uye Mutengo Wezvakasiyana OXC Architectures
Mumamiriro epamusoro-soro ane 80 wavelengths/fiber, HMWC-OXC (v(64,2,44,12,64)) inogona kuderedza mari ne40% zvichienzaniswa neSpanke-OXC yechinyakare. Muzviitiko zvakaderera-wavelength (semuenzaniso, 50 wavelengths/fiber), mukana wemutengo unotonyanya kukosha nekuda kwenhamba yakaderedzwa yeT-ports inodiwa (semuenzaniso, v(64,2,36,4,64)).
Uku kubatsirikana kwehupfumi kunobva mukusanganiswa kweiyo yakakwira port density yeMEMS switch uye modular yekuwedzera zano, iyo isingangodzivise mari yekutsiva yakakura-yeWSS asi zvakare inoderedza yakawedzera mutengo nekushandisa zvakare aripo Spanke-OXC modules. Simulation mhedzisiro inoratidzawo kuti nekugadzirisa huwandu hwepakati-layer modules uye reshiyo yeT-ports, HMWC-OXC inogona kuchinjika kuenzanisa kuita uye mutengo pasi peakasiyana wavelength kugona uye kutungamira magadzirirwo, ichipa vashandisi mikana yakawanda-dimensional optimization.
Tsvagiridzo yeramangwana inogona kuenderera mberi nekuongorora yakasimba T-port allocation algorithms kukwirisa mukati mekushandisa zviwanikwa. Uyezve, nekufambira mberi kweMEMS maitiro ekugadzira, kubatanidzwa kwepamusoro-dimensional swichi kuchawedzera kuwedzera scalability yeiyi dhizaini. Kune optical network opareta, iyi dhizaini inonyanya kukodzera mamiriro asina kujeka traffic traffic, ichipa inoshanda tekinoroji mhinduro yekuvaka inosimba uye scalable all-optical backbone network.
Nguva yekutumira: Aug-21-2025