Umthuthukisi wemishini yezokuxhumana u-Ciena wethule uhlelo lokucubungula isignali yokubona. Izonyusa isivinini sokudluliswa kwedatha ku-fiber optical siye ku-800 Gbit/s.
Ngaphansi kokusika - mayelana nemigomo yokusebenza kwayo.
--Ото - - CC BY-SA
Udinga i-fiber eyengeziwe
Ngokwethulwa kwamanethiwekhi esizukulwane esisha kanye nokwanda kwamadivayisi e-inthanethi Yezinto, ngokusho kwezinye izilinganiso, inombolo yawo 50 billion eminyakeni emithathu - umthamo wezimoto zomhlaba wonke uzokwanda. U-Deloitte uthi ingqalasizinda ye-fiber optic ekhona, eyisisekelo samanethiwekhi we-5G, ngeke yanele ukuphatha umthwalo onjalo. Umbono we-ejensi yokuhlaziya usekelwa nabahlinzeki bamafu.
Ukuze kulungiswe lesi simo, izinhlangano eziningi zisebenza ezinhlelweni ezandisa ukuphuma kwe-"optics". Esinye sezixazululo ze-hardware sathuthukiswa ngu-Ciena - sibizwa ngokuthi i-WaveLogic 5. Ngokusho konjiniyela benkampani, iphrosesa entsha iyakwazi ukuhlinzeka ngezilinganiso zokudluliswa kwedatha ezifika ku-800 Gbit/s nge-wavelength eyodwa.
Indlela isixazululo esisha esisebenza ngayo
UCiena wethule izinguquko ezimbili zephrosesa ye-WaveLogic 5. Eyokuqala ibizwa nge-WaveLogic 5 Extreme. Kungumdwebo , esebenza njengephrosesa yesiginali yedijithali () inethiwekhi ye-fiber optic. I-DSP iguqula isignali isuke kugesi iye ku-optical futhi ngokuphambene nalokho.
I-WaveLogic 5 Extreme isekela i-fiber throughput ukusuka ku-200 ukuya ku-800 Gbps - kuye ngebanga lapho isignali idinga ukuthunyelwa khona. Ukuze uthole ukudluliswa kwedatha ngokuphumelelayo, uCiena wethule ku-firmware yephrosesa i-algorithm yokwakheka okungenzeka komlaza wesignali ( - PCS).
Le mlaza isethi yamanani amplitude (amaphuzu) amasignali adlulisiwe. Ngalinye lamaphoyinti ezinkanyezi, i-algorithm ye-PCS ibala amathuba enkohlakalo yedatha namandla adingekayo ukuze kuthunyelwe isignali. Ngemva kwalokho, ukhetha i-amplitude lapho isilinganiso sesignali kuya kumsindo kanye nokusetshenziswa kwamandla kuzoba kuncane.
Iphrosesa futhi isebenzisa i-algorithm yokulungisa iphutha langaphambili () kanye ne-frequency division multiplexing (). I-algorithm yokubethela isetshenziselwa ukuvikela ulwazi oludlulisiwe .
Ukuguqulwa kwesibili kwe-WaveLogic 5 uchungechunge lwamamojula we-Nano optical we-plug-in. Bangathumela futhi bamukele idatha ngesivinini esingafika ku-400 Gbps. Amamojula anezici zamafomu amabili - i-QSFP-DD ne-CFP2-DCO. Eyokuqala incane ngosayizi futhi yakhelwe amanethiwekhi angu-200 noma angu-400GbE. Ngenxa yesivinini esikhulu sokuxhuma nokusebenzisa amandla aphansi, i-QSFP-DD ifanele izixazululo zesikhungo sedatha. Isici sefomu lesibili, i-CFP2-DCO, isetshenziselwa ukuthumela idatha ebangeni elingamakhulu amakhilomitha, ngakho izosetshenziswa kumanethiwekhi e-5G nengqalasizinda yabahlinzeki besevisi ye-inthanethi.
I-WaveLogic 5 izoqala ukuthengiswa engxenyeni yesibili ka-2019.
--Ото - — PD
Izinzuzo kanye nebubi beprosesa
I-WaveLogic 5 Extreme ingenye yamaphrosesa okuqala emakethe ukudlulisa idatha nge-wavelength eyodwa ku-800 Gbps. Ngezixazululo eziningi zokuncintisana, lesi sibalo singama-500-600 Gbit/s. I-Ciena izuza ngo-50% wamandla esiteshi esibonayo futhi yanda 20%.
Kodwa kunobunzima obubodwa - ngokucindezelwa kwesignali kanye nokwanda kwesivinini sokudlulisa idatha, kunengozi yokuhlanekezelwa kolwazi. Iyanda ngebanga elikhulayo. Ngenxa yalokhu, i-processor ubunzima lapho uthumela isignali kumabanga amade. Nakuba abathuthukisi bethi i-WaveLogic 5 iyakwazi ukudlulisa idatha “phesheya kwezilwandle” ngesivinini esingu-400 Gbit/s.
Ama-Analog
Amasistimu okwandisa umthamo we-fiber nawo athuthukiswa yi-Infinite ne-Acacia. Isixazululo senkampani yokuqala sibizwa nge-ICE6 (ICE - Infinite Capacity Engine). Iqukethe izingxenye ezimbili - i-optical integrated circuit (PIC - Photonic Integrated Circuit) kanye neprosesa yesignali yedijithali esesimweni se-ASIC chip. I-PIC kumanethiwekhi iguqula isiginali isuke ku-optical iye kugesi futhi ngokuphambene nalokho, futhi i-ASIC inesibopho sokuphindaphinda kwayo.
Isici esikhethekile se-ICE6 ukuguquguquka kwe-pulse yesiginali (). Iphrosesa yedijithali ihlukanisa ukukhanya kobude beza obuthile kube amaza engeziwe e-subcarrier, anweba inani lamaleveli atholakalayo futhi akhulise ukuminyana kokubonwayo kwesiginali. Kulindeleke ukuthi i-ICE6, njenge-WaveLogic, inikeze amanani okudlulisa idatha esiteshini esisodwa ezingeni lika-800 Gbit/s. Umkhiqizo kufanele udayiswe ekupheleni kuka-2019.
Ngokuqondene ne-Acacia, onjiniyela bayo bakha imojuli ye-AC1200. Izohlinzeka ngesivinini sokudlulisa idatha esingu-600 Gbit/s. Lesi sivinini sifezwa kusetshenziswa ukwakheka kwe-3D komlaza wesiginali: ama-algorithms kumojuli ashintsha ngokuzenzakalelayo imvamisa yokusetshenziswa kwamaphoyinti kanye nesikhundla sawo kumlaza, ukulungisa umthamo wesiteshi.
Kulindeleke ukuthi izixazululo ezintsha zezingxenyekazi zekhompuyutha zikhulise ukuphuma kwe-fiber optical hhayi nje ebangeni elingaphakathi kwedolobha elilodwa noma isifunda, kodwa futhi namabanga amade. Ukwenza lokhu, onjiniyela kufanele banqobe ubunzima obuhambisana neziteshi ezinomsindo. Ukwandisa umthamo wamanethiwekhi angaphansi kwamanzi kuzoba nomthelela omuhle kwikhwalithi yezinsizakalo zabahlinzeki be-IaaS nezinkampani ezinkulu ze-IT, uma kubhekwa ukuthi “»uhhafu wethrafikhi usakazwa phansi olwandle.
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Source: www.habr.com