Ubwihindurize bwa tekinoroji ya Optical Cross-Connect (OXC)

OXC (optique ihuza-ihuza) ni verisiyo yahindutse ya ROADM (Reconfigurable Optical Add-Drop Multiplexer).

Nkibintu byingenzi byo guhinduranya imiyoboro ya optique, ubunini nogukoresha neza-optique ihuza optique ihuza (OXCs) ntabwo igena gusa imiterere ya topologiya ya netologiya gusa ahubwo inagira ingaruka itaziguye yo kubaka no gukora no gufata neza imiyoboro minini ya optique. Ubwoko butandukanye bwa OXCs bugaragaza itandukaniro rinini muburyo bwububiko no kubishyira mubikorwa.

Igishushanyo gikurikira kirerekana CDC-OXC gakondo (Ibara ritagira ibara ritagira impaka zidafite aho zihurira na Optical Cross-Connect) imyubakire, ikoresha imirongo ihitamo umurongo (WSSs). Kuruhande rwumurongo, 1 × N na N × 1 WSSs ikora nka ingress / egress modules, mugihe M × K WSSs kuruhande rwo kongeramo / guta gucunga gucunga no kugabanuka kwuburebure. Izi module zahujwe binyuze muri fibre optique muri OXC inyuma.

Igishushanyo: Ububiko bwa CDC-OXC

Ibi birashobora kandi kugerwaho muguhindura indege kumurongo wa Spanke, bikavamo ubwubatsi bwa Spanke-OXC.

Igishushanyo: Ubwubatsi bwa Spanke-OXC

Igishushanyo kiri hejuru cyerekana ko kuruhande rwumurongo, OXC ihujwe nubwoko bubiri bwibyambu: ibyerekezo byerekezo hamwe na fibre fibre. Buri cyambu cyerekezo gihuye nicyerekezo cya geografiya ya OXC murusobe rwa topologiya, mugihe buri cyambu cya fibre kigereranya ibice bibiri byerekeranye nicyambu. Icyambu cyerekezo kirimo fibre fibre ebyiri (urugero, ibyambu byinshi bya fibre).

Mugihe OXC ishingiye kuri Spanke igera ku buryo budasubirwaho guhinduranya binyuze mu gishushanyo mbonera cy’imigambi ihuza imipaka, imbogamizi zayo ziragenda zigaragara cyane uko urujya n'uruza rwiyongera. Icyambu cyo kubara icyambu cyo guhitamo ibicuruzwa byahinduwe (WSSs) (kurugero, ibyashyigikiwe ubu ni ibyambu 1 × 48, nka Finisar's FlexGrid Twin 1 × 48) bivuze ko kwagura urugero rwa OXC bisaba gusimbuza ibyuma byose, bikaba bihenze kandi bikabuza kongera gukoresha ibikoresho bihari.

Ndetse hamwe nububiko buhanitse bwa OXC bwubatswe bushingiye kumurongo wa Clos, iracyashingira kuri M × N WSS ihenze, bigatuma bigorana kuzuza ibisabwa byiyongera.

Kugira ngo iki kibazo gikemuke, abashakashatsi basabye ubwubatsi bushya bwa Hybrid: HMWC-OXC (Hybrid MEMS na WSS Clos Network). Muguhuza sisitemu ya microelectromechanical (MEMS) na WSS, ubu bwubatsi bugumana imikorere idahagarikwa mugihe ushyigikiye ubushobozi bwa "kwishyura-nkuko ukura", butanga inzira nziza yo kuzamura ibiciro kubakoresha imiyoboro ya optique.

Igishushanyo mbonera cya HMWC-OXC kiri mubice bitatu bya Clos imiterere.

Igishushanyo: Ubwubatsi bwa Spanke-OXC Bishingiye ku miyoboro ya HMWC

MEMS ihanitse cyane ya optique ikoreshwa muburyo bwinjiza nibisohoka, nkibipimo 512 × 512 kugeza ubu bishyigikiwe nikoranabuhanga rigezweho, kugirango bibe icyuzi kinini gifite icyambu. Igice cyo hagati kigizwe na moderi ntoya ya Spanke-OXC, ihujwe na “T-ports” kugirango igabanye umuvuduko w'imbere.

Mu cyiciro cyambere, abashoramari barashobora kubaka ibikorwa remezo bishingiye kuri Spanke-OXC isanzwe (urugero, 4 × 4 igipimo), bagakoresha gusa MEMS yahinduye (urugero, 32 × 32) murwego rwo kwinjiza no gusohoka, mugihe bagumana module imwe ya Spanke-OXC murwego rwagati (muriki gihe, umubare wa T-port ni zeru). Mugihe ubushobozi bwurusobe busabwa kwiyongera, modul nshya ya Spanke-OXC yongeweho buhoro buhoro murwego rwo hagati, na T-port byashyizweho kugirango bihuze module.

Kurugero, mugihe waguye umubare wimyanya yo hagati kuva kuri imwe kugeza kuri ebyiri, umubare wa T-port washyizwe kumurongo umwe, ukongera igipimo cyose kuva kuri bine kugeza kuri bitandatu.

Igishushanyo: HMWC-OXC Urugero

Iyi nzira ikurikira ibipimo bibuza M> N × (S - T), aho:

M numubare wibyambu bya MEMS,
N numubare wurwego rwagateganyo module,
S numubare wibyambu muri Spanke-OXC imwe, na
T numubare wibyambu bifitanye isano.

Muguhindura muburyo bugaragara ibipimo, HMWC-OXC irashobora gushyigikira kwaguka gahoro gahoro kuva murwego rwambere kugera kuntego (urugero, 64 × 64) idasimbuye ibikoresho byose icyarimwe.

Kugirango hamenyekane imikorere nyayo yubu bwubatsi, itsinda ryubushakashatsi ryakoze ubushakashatsi bwikigereranyo bushingiye ku nzira nziza ya optique isaba.

Igishushanyo: Guhagarika imikorere yumurongo wa HMWC

Kwigana gukoresha moderi yumuhanda wa Erlang, ukeka ko ibyifuzo bya serivisi bikurikiza igabanywa rya Poisson kandi serivisi zifata ibihe zikurikira gukwirakwiza nabi. Umutwaro wose wimodoka yashyizwe kuri 3100 Erlangs. Intego ya OXC igipimo ni 64 × 64, naho ibyinjira n'ibisohoka MEMS nayo ni 64 × 64. Igice cyo hagati Spanke-OXC module igizwe na 32 × 32 cyangwa 48 × 48 ibisobanuro. Umubare wa T-port uri hagati ya 0 na 16 bitewe nibisabwa.

Ibisubizo byerekana ko, mubihe bifite icyerekezo cyerekezo cya D = 4, amahirwe yo guhagarika HMWC-OXC yegereye hafi ya gakondo ya Spanke-OXC (S (64,4)). Kurugero, ukoresheje iboneza v (64,2,32,0,4), amahirwe yo guhagarika yiyongera hafi 5% gusa munsi yumutwaro uciriritse. Iyo icyerekezo cyerekezo cyiyongereye kuri D = 8, amahirwe yo guhagarika yiyongera kubera "trunk effect" no kugabanuka kwuburebure bwa fibre muri buri cyerekezo. Nyamara, iki kibazo kirashobora kugabanywa neza mukongera umubare wa T-port (urugero, iboneza v (64,2,48,16,8)).

Ikigaragara ni uko, nubwo kongeramo module yo hagati irashobora gutera imbere imbere bitewe na T-port, ubwubatsi rusange burashobora kugera kubikorwa byiza binyuze muburyo bukwiye.

Isesengura ryibiciro ryerekana kandi ibyiza bya HMWC-OXC, nkuko bigaragara ku gishushanyo gikurikira.

Igishushanyo: Guhagarika Ibishoboka nigiciro cyubwubatsi butandukanye bwa OXC

Mugihe cyinshi cyane gifite uburebure bwa 80 / fibre, HMWC-OXC (v (64,2,44,12,64)) irashobora kugabanya ibiciro 40% ugereranije na Spanke-OXC gakondo. Mugihe gito-cyerekezo (urugero, 50 yumurambararo / fibre), inyungu yikiguzi irakomeye cyane kubera kugabanuka kwa T-ibyambu bisabwa (urugero, v (64,2,36,4,64)).

Iyi nyungu yubukungu ituruka ku guhuza ubwinshi bw’icyambu cya MEMS hamwe n’ingamba zo kwagura uburyo, ibyo ntibirinda gusa amafaranga yo gusimbuza WSS nini ahubwo binagabanya ibiciro byiyongera mukoresha modul ya Spanke-OXC. Ibisubizo byigero byerekana kandi ko muguhindura umubare wimyanya yo hagati hamwe nigipimo cya T-byambu, HMWC-OXC irashobora guhuza neza imikorere nigiciro munsi yubushobozi butandukanye bwumurongo hamwe nicyerekezo cyerekezo, bigaha abashoramari amahirwe menshi yo gutezimbere.

Ubushakashatsi bw'ejo hazaza burashobora kurushaho gushakisha imbaraga T-port igenera algorithms kugirango hongerwe imikoreshereze yimbere. Byongeye kandi, hamwe niterambere mubikorwa byo gukora MEMS, guhuza kwurwego rwohejuru rwohindura bizarushaho kuzamura ubunini bwubu bwubatsi. Kubakoresha imiyoboro ya optique, iyi myubakire irakwiriye cyane cyane kuri siyariyeri hamwe no kwiyongera kwimodoka itazwi, itanga igisubizo gifatika cya tekiniki yo kubaka imiyoboro ihamye kandi nini cyane ya optique yumugongo.