OXC (optical cross-connect) ishanduro yakagadzirwa yeROADM (Reconfigurable Optical Add-Drop Multiplexer).
Sechinhu chikuru chinochinja ma network e optical, kukura uye kushanda zvakanaka kwe optical cross-connects (OXCs) hazvingoone chete kuchinjika kwe network topology asi zvinokanganisawo zvakananga mari yekuvaka nekushanda nekugadzirisa ma network e optical akawanda. Mhando dzakasiyana dzeOXC dzinoratidza musiyano mukuru mukugadzira ma architecture uye mashandiro ekushanda.
Mufananidzo uri pazasi unoratidza dhizaini yechinyakare yeCDC-OXC (Colorless Directionless Contetionless Optical Cross-Connect), iyo inoshandisa switch dzinosarudza wavelength (WSSs). Kudivi remutsetse, 1 × N uye N × 1 WSS dzinoshanda semamodule ekupinda/kubuda, nepo M × K WSS dziri kudivi rekuwedzera/kudonha dzichitarisira kuwedzera nekudonha kwemawavelength. Mamodule aya akabatana kuburikidza nefibers dze optical mukati meOXC backplane.
Mufananidzo: Magadzirirwo ekare eCDC-OXC
Izvi zvinogonawo kuitwa nekushandura backplane kuita network yeSpanke, zvichikonzera dhizaini yedu yeSpanke-OXC.
Mufananidzo: Spanke-OXC Architecture
Mufananidzo uri pamusoro apa unoratidza kuti parutivi rwemutsetse, OXC ine hukama nemhando mbiri dzemaports: maports ekutungamirira uye maports efiber. Chiteshi chimwe nechimwe chekutungamirira chinoenderana negwara reOXC mu network topology, nepo chiteshi chimwe nechimwe chefiber chinomiririra mafiber maviri ekutungamirira mukati mechiteshi chekutungamirira. Chiteshi chekutungamirira chine mafiber maviri ekutungamirira (kureva, maports akawanda efiber).
Kunyange zvazvo OXC yakavakirwa paSpanke ichikwanisa kuchinja chinja pasina kuvharira kuburikidza nedhizaini ye backplane yakabatana zvizere, miganhu yayo inowedzera kukosha sezvo network traffic ichiwedzera. Muganho wehuwandu hwema switch ekusarudza mawavelength ekutengeserana (WSSs) (semuenzaniso, huwandu hwema ports anotsigirwa i1×48 ports, senge Finisar's FlexGrid Twin 1×48) zvinoreva kuti kuwedzera OXC dimension kunoda kutsiva hardware yese, izvo zvinodhura uye zvinodzivirira kushandiswazve kwemidziyo iripo.
Kunyangwe neOXC architecture yepamusoro-soro yakavakirwa paClos networks, ichiri kuvimba neM×N WSSs dzinodhura, zvichiita kuti zviome kusangana nezvinodiwa zvekusimudzira zvishoma nezvishoma.
Kuti vagadzirise dambudziko iri, vaongorori vakapa mazano ekugadzira magadzirirwo matsva emhando dzakasiyana: HMWC-OXC (Hybrid MEMS neWSS Clos Network). Nekubatanidza masisitimu emicroelectromechanical (MEMS) neWSS, dhizaini iyi inochengetedza mashandiro asingadzivisike uku ichitsigira kugona kwe "pay-as-you-grow", zvichipa nzira yekuvandudza inodhura kune vanoshanda ne optical network.
Dhizaini huru yeHMWC-OXC iri muchimiro chayo chenetiweki yeClos ine mativi matatu.
Mufananidzo: Spanke-OXC Architecture Yakavakirwa paHMWC Networks
Maswichi emagetsi eMEMS ane mativi akakwirira anoiswa pama layers ekupinda nekubuda, akadai se 512×512 scale iri kutsigirwa netekinoroji iripo, kuti agadzire dziva rechiteshi rine huwandu hukuru. Layer yepakati ine ma modules madiki akawanda eSpanke-OXC, akabatana kuburikidza ne "T-ports" kuderedza kuzara kwemukati.
Muchikamu chekutanga, vashandisi vanogona kuvaka zvivakwa zvichibva pane zviripo zveSpanke-OXC (semuenzaniso, 4×4 scale), vachingoisa maMEMS switch (semuenzaniso, 32×32) pazvikamu zvekupinda nekubuda, ukuwo vachichengeta module imwe chete yeSpanke-OXC iri pakati (munyaya iyi, huwandu hweT-ports izero). Sezvo zvinodiwa zve network capacity zvichiwedzera, mamodule matsva eSpanke-OXC anowedzerwa zvishoma nezvishoma kune pakati, uye maT-ports anogadzirwa kuti abatanidze mamodule.
Semuenzaniso, kana uchiwedzera huwandu hwemamodule epakati kubva paimwe kusvika paviri, huwandu hwemaT-ports hunoiswa paimwe, zvichiwedzera chiyero chose kubva pamana kusvika patanhatu.
Mufananidzo: Muenzaniso weHMWC-OXC
Maitiro aya anotevera chirambidzo cheparameter M > N × (S − T), apo:
M ndiyo nhamba yemaports eMEMS,
N ndiyo nhamba yemamodules epakati nepakati,
S ndiyo nhamba yemachiteshi muSpanke-OXC imwe chete, uye
T ndiyo nhamba yemaports akabatana.
Nekugadzirisa ma parameter aya zvine simba, HMWC-OXC inogona kutsigira kuwedzera zvishoma nezvishoma kubva pachikero chekutanga kuenda kuchikamu chakatarwa (semuenzaniso, 64×64) pasina kutsiva zvese zvishandiso zvehardware panguva imwe chete.
Kuti vaone kuti hunyanzvi hwekuvaka uhwu hwakaita sei, timu yekutsvagisa yakaita bvunzo dzekufananidzira zvichibva pazvikumbiro zve dynamic optical path.
Mufananidzo: Kudzivirira Kushanda kweHMWC Network
Kufungidzira uku kunoshandisa muenzaniso weErlang traffic, tichifunga kuti zvikumbiro zvebasa zvinotevera kugoverwa kwePoisson uye nguva dzekubata sevhisi dzinotevera kugoverwa kwe exponential negative. Mutengo wetraffic wese wakaiswa ku3100 Erlangs. Chiyero cheOXC chakatarwa i64×64, uye chiyero cheMEMS chekupinda nekubuda zvakare i64×64. Magadzirirwo epakati eSpanke-OXC module anosanganisira 32×32 kana 48×48 specifications. Huwandu hweT-ports hunotangira pa0 kusvika pa16 zvichienderana nezvinodiwa nemamiriro ezvinhu.
Zvakawanikwa zvinoratidza kuti, muchiitiko chine divi rekutungamirira raD = 4, mukana wekuvharira weHMWC-OXC uri pedyo newaSpanke-OXC baseline (S(64,4)). Semuenzaniso, uchishandisa configuration yev(64,2,32,0,4), mukana wekuvharira unowedzera ne5% chete pasi pemutoro uri pakati nepakati. Kana divi rekutungamirira rawedzera kusvika kuD = 8, mukana wekuvharira unowedzera nekuda kwe "trunk effect" uye kudzikira kwehurefu hwefiber munzira imwe neimwe. Zvisinei, nyaya iyi inogona kuderedzwa zvinobudirira nekuwedzera huwandu hweT-ports (semuenzaniso, configuration yev(64,2,48,16,8).
Zvinonyanya kukosha, kunyangwe kuwedzerwa kwemamodule epakati kunogona kukonzera kuvharika kwemukati nekuda kwekusawirirana kweT-port, dhizaini yacho yese inogona kuwana mashandiro akanaka kuburikidza nekugadzirisa kwakakodzera.
Kuongorora mutengo kunoratidzawo zvakanakira HMWC-OXC, sezvakaratidzwa mumufananidzo uri pazasi.
Mufananidzo: Kuvharira Mikana uye Mutengo weMagadzirirwo Akasiyana eOXC
Muzviitiko zvine density yakakura ine ma wavelengths/fiber 80, HMWC-OXC (v(64,2,44,12,64)) inogona kuderedza mitengo ne40% zvichienzaniswa neSpanke-OXC yechinyakare. Muzviitiko zvine ma wavelengths akaderera (semuenzaniso, ma wavelengths/fiber 50), mukana wemutengo wacho wakanyanya kukosha nekuda kwehuwandu hwakaderera hwema T-ports anodiwa (semuenzaniso, v(64,2,36,4,64)).
Kubatsirwa uku kwehupfumi kunobva mukusanganiswa kwehuwandu hwakawanda hwema switch eMEMS uye nzira yekuwedzera modular, iyo isingangodziviriri chete mari yekutsiva WSS yakakura asiwo inoderedza mari inowedzera nekushandisa zvakare ma modules aripo eSpanke-OXC. Mhedzisiro yekuenzanisa inoratidzawo kuti nekugadzirisa huwandu hwema modules epakati nepakati uye chiyero cheT-ports, HMWC-OXC inogona kuenzanisa mashandiro uye mutengo zviri nyore pasi pesimba rakasiyana rewavelength uye magadzirirwo egwara, zvichipa vashandisi mikana yekuvandudza mativi akawanda.
Tsvagiridzo yeramangwana inogona kuongorora zvakare maalgorithms eT-port allocation kuti awedzere kushandiswa kwezviwanikwa zvemukati. Uyezve, nekufambira mberi mukugadzira kweMEMS, kubatanidzwa kwemaswichi emhando yepamusoro kuchawedzera kukura kwechivakwa ichi. Kune vanoshanda nenetwork ye optical, dhizaini iyi yakakodzera zvakanyanya kune zviitiko zvisina chokwadi chekukura kwetraffic, ichipa mhinduro inoshanda yekuvaka network ye backbone yakasimba uye inokura.
Nguva yekutumira: Nyamavhuvhu-21-2025