{"id":52139,"date":"2019-11-01T00:00:00","date_gmt":"2019-10-31T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/mirovoj-rekord-besprovodnoj-peredachi-dannyh-40-gbit-s-na-11-kilometrov"},"modified":"2020-02-18T13:59:48","modified_gmt":"2020-02-18T10:59:48","slug":"mirovoj-rekord-besprovodnoj-peredachi-dannyh-40-gbit-s-na-11-kilometrov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/mirovoj-rekord-besprovodnoj-peredachi-dannyh-40-gbit-s-na-11-kilometrov","title":{"rendered":"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Augustis 2019 viidi Venemaal esmakordselt maailmas (jah, see on t\u00f5si) l\u00e4bi kaubanduslik projekt juhtmevaba varundamise jaoks, kasutades 40 Gbit\/s kiirusel optilist kiudkaablit. Operaator \u201e\u00dchtekuuluvus\u201d, Norilsk Nickel t\u00fctarettev\u00f5te, kasutas selle kanali kaudu 11-kilomeetrilist juhtmevaba varukoopiat Eniisele. <noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<p><img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/954e0d901d0ab0651bb3b8860820669f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nAeg-ajalt ilmuvad meedias, sealhulgas Habr's, <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/news\/t\/394597\/\">teated juhtmevaba side maailmarekorditest<\/a><\/noindex>. Need on huvitavad tehnoloogia edusammude seisukohalt, kuid need on alati just uurimis- ja testlahendused. Siin on aga tegu reaalse kaubandusprojekti, mitte Silikonide oru v\u00f5i Euroopa \u00fclikooli tingimustes, vaid otse tundras Polaarjoonel. \u00dcllatavalt, kuid just suur maa, keerulised geograafilised ja kliimatingimused loovad eeldused projektide jaoks, mis \u00fcletavad parimaid teaduslaboratooriume.<\/p>\n<blockquote><p>Viimaste juhtmevaba side rekordite kronoloogia:<\/p>\n<ul>\n<li><b>Mai 2013<\/b>, <noindex><a rel=\"nofollow\" href=\"https:\/\/phys.org\/news\/2013-05-gbits-ghz-world-wireless-transmission.html\">40 Gbit\/s 1 km peal<\/a><\/noindex> 240 GHz katse sagedusel toimub Karlruhe Tehnika\u00fclikooli teadlaste, Radiometer Physics GmbH ja Fraunhoferi K\u00f5rge Temperatuuri F\u00fc\u00fcsika Instituudi \u00fchiseks katseks. Signaali sagedus ei ole kaubanduseks kergesti k\u00e4ttesaadav.<\/li>\n<li><b>Mai 2016<\/b>: <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/news\/t\/394597\/\">6 Gbit\/s 37 km-l<\/a><\/noindex> 70\/80 GHz vahemikus, sama meeskond, kuid kui uus katse sagedustel, mis on eraldatud kommertslikeks projektideks,<\/li>\n<li><b>November 2016<\/b>: <noindex><a rel=\"nofollow\" href=\"http:\/\/\">20 Gbit\/s 13 km-l<\/a><\/noindex>, Facebook Connectivity Labi teaduslik keskus,<\/li>\n<li><b>Jaanuar 2019<\/b>, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.ericsson.com\/en\/press-releases\/2019\/1\/deutsche-telekom-and-ericsson-achieve-fiber-like-results-with-wireless-backhaul\">40 Gbit\/s 1,4 km-l<\/a><\/noindex>, Deutsche Telekomi testimispaik seeriatootmisest varustuses Ericssonil, mais 2019 oli sama linkide mahu laiendamine 8 ritta peaaegu 100 Gbit\/s,<\/li>\n<li><b>August 2019<\/b>, <noindex><a rel=\"nofollow\" href=\"https:\/\/lenta.ru\/news\/2019\/08\/21\/wireless\/\">40 Gbit\/s 11 km-l<\/a><\/noindex>, Norilsk ettev\u00f5te \"\u00dchtsus\" seeriatootmisest varustuses O\u00dc \"DOK\" (Peterburi).<\/li>\n<\/ul>\n<\/blockquote>\n<p>\nTegelikult ei oleks Arktika ringi oludes mingeid rekordilisi juhtmeid, kui mitte Eni\u0161ei j\u00e4\u00e4mineku p\u00e4rast. Projekti eelajalugu on j\u00e4rgmine: 2017. aastal, p\u00e4rast seda, kui \"suur kolm\" operaatorit keeldusid arendamast \u00fchendusi Taimyra suunas, ehitas aktsiaselts \"GMK Norilsk Nickel\" oma rahaga tohutu kiudoptilise \u00fchenduse (VOLS) pikkusega 956 km Urova Urengit Norrilskisse, mille maht on 40 Gbit\/s. See on t\u00f5eliselt keeruline marsruut, mis kulgeb raskesti l\u00e4bitavas maastikus, ja selle ehitajad said selle t\u00f6\u00f6 eest valitsuse auhindu.<\/p>\n<p>\u00dcks kasutamise probleeme on 40 Gbit\/s kiudkaabli VOLS-i \u00fclekandmine Eni\u0161ei kaudu sildade puudumisel, mis otsustati panna j\u00f5e p\u00f5hjale, usaldusv\u00e4\u00e4rsuse tagamiseks pandi mitu kaablit. Kuid j\u00e4\u00e4minek kahjustab kergesti optikat. Eni\u0161eis ei ole j\u00e4\u00e4minek \u00fcritus, mis kestaks vaid \u00fche p\u00e4eva, ja selle aja jooksul ei ole mingid remondit\u00f6\u00f6d vees lubatud inimeste k\u00f5rge ohu t\u00f5ttu. <\/p>\n<p>Lisaks kaablitele Yenisey alap\u00f5hjas, rajati l\u00e4hedal asuv kiirus 1 Gbit\/s kaudu traadita raadio\u00fchendus, mis asub m\u00f5lemal pool j\u00f5ge, Igarkas ja Priluki k\u00fclas (see raadio\u00fchendus on n\u00e4htav \u00fclemisel pildil \u2014 suur taldrik). Kuid mis on 1 Gbit\/s, et tagada kogu Norilsk t\u00f6\u00f6stuspiirkond juhul, kui optika saab kahjustada... \u2014 pisarad. Seet\u00f5ttu alustas Norilski operaator \"\u00dchtsus\", mis kuulub PJSC \"Norilsk Nickel\" struktuuri, 2018-2019 s\u00fcgis-talvisel perioodil traadita kanali projekteerimist\u00f6id Yenisey \u00fcletamiseks, mille maht ei j\u00e4\u00e4 alla VOLS-i peatee omadusele. <\/p>\n<p>Ekspertide \u00fcllatuseks ei ole \u00fckski maailma telekommunikatsiooni br\u00e4nd n\u00f5ustunud pakkuma seadmeid 40-gigabitise traadita kanali jaoks, mille ulatus on 11 km. Probleem seisneb selles, et k\u00f5rge kanaliv\u00f5imsuse ja kauguse kombinatsioon on keeruline. Kaasaegne seerianumber 10 Gbit\/s ja suurema mahutavusega seadmed 70\/80 GHz vahemikus omavad sellist omadust nagu v\u00e4ga piiratud ulatus. See tuleneb asjaolust, et keerukate kodeerimisskeemide, nagu QAM128 v\u00f5i QAM256 kasutamisel \u2014 ning just need suudavad anda 10 Gbit\/s ja enam \u2014 on keeruline tagada piisavalt k\u00f5rget edastamise v\u00f5imsust. 3-5 km kaugused on lihtsad, kuid 11 km puhul muutub signaali n\u00f5rgenemine liiga suureks ja mingit 10GE standardi \u00fchendust ei ole v\u00f5imalik saada. <\/p>\n<p>V\u00e4ljakutse on vastu v\u00f5etud Venemaa arendaja poolt Peterburist \u2014 <noindex><a rel=\"nofollow\" href=\"http:\/\/dokltd.ru\/\">ettev\u00f5te DOC<\/a><\/noindex>. Tal oli juba olemas raadiosildade arendused, mis pakkusid vajalikku ulatust. Enne seda projekti testisid nad 40 Gbit\/s kanalit, kasutades nelja koost\u00f6\u00f6s t\u00f6\u00f6tavat raadiosilda, iga\u00fche v\u00f5imekus oli 10 Gbit\/s, nende 4 km - prooviplatsil ja nad olid kindlad, et sellist mahutavust on v\u00f5imalik saavutada. Praktikas aga ei olnud keegi telekommunikatsiooni t\u00f6\u00f6stuses kunagi proovinud seadistada koos nelja paralleelselt t\u00f6\u00f6tavat raadiosilda 10 Gbit\/s 11 km kaugusel. <\/p>\n<p> <img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/10bbb57f000d215286e2172169977f33.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nSaades tagasil\u00f6\u00f6ke maailma br\u00e4ndidelt, ei olnud ka tellija, O\u00dc \u201e\u00dchtsus\u201c, kindel, et kohaliku varustuse suutlikkus projektiga toime tulla. Seet\u00f5ttu otsustati alguses paigaldada pilootetapis k\u00f5igest \u00fcks raadiosild 10 Gbit\/s 11 km peale. Ja kui see osutub h\u00e4sti t\u00f6\u00f6kindlaks, siis suurendada \u00fclesanne nelja paralleelselt t\u00f6\u00f6tava raadiosilla rakendamiseks. <\/p>\n<p><img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/8d572ba46bf36102132fc8eab4500803.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/66cf9992fddb577bfb58436196b372e9.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/da5e4d133a67bca0b57b7c9acdb39438.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<\/p>\n<blockquote><p>Tehnilisest vaatepunktist pole 40 Gbit\/s \u00fches kanalis edastamine, olgu see siis \u00f5hu v\u00f5i optilise kaabli kaudu, sugugi vajalik. Andmete edastamine mitme paralleelse 10 Gbit\/s \"niidi\" kaudu on palju lihtsam. 10GE standardi v\u00f5rgu seadmed on odavamad ja kergemini k\u00e4ttesaadavad kui 40GE standardi l\u00fclitid. Lisaks annavad paralleelsed \u201eniidid\u201c kogu kanalile suurema usaldusv\u00e4\u00e4rsuse. <\/p><\/blockquote>\n<p>\nAga probleem oli selles, et erinevalt optilisest kaablist, kus signaalid paralleelsetes kiududes omavahel ei m\u00f5juta, tekivad raadiokanaleid kasutades vastastikused h\u00e4ired, mis v\u00f5ivad ulatuda t\u00e4ieliku sidekatkestuseni. Sellega v\u00f5ideldakse erinevate signaali polariseerimisv\u00f5tete ja sageduste jaotamise abil. Kuid seda on lihtsam \u00f6elda, kui tegelikult \u201erauda\u201c ellu viia. Peterburis valmistati suurte mikrolaine mikrokiipide (MMIC, Monolithic Microwave Integrated Circuit) skeemitehnika galliummi arseniidi alusel ning nad olid oma skeemitehnilise lahenduse osas kindlad.<\/p>\n<p>10GE standard modern radio bridges are made worldwide using commercial microwave chips. In this field, it's inefficient to pursue vertically integrated development, where all processes are performed within a single company\u2014from depositing microwave chips to assembling components into a finished product. It's somewhat similar to how multiple companies produce computer boards based on chips from Intel and AMD. However, unlike mass-market PC boards, configuring microwave chips, subsequently amplifying the signal, and feeding it into the antenna requires special expertise, which, in fact, is the essence of the companies' know-how,\" commented Valery Salomatov, project manager at LLC \"DOK.\"<\/p>\n<p>The pilot radio bridge model PPC-10G-E-HP operated successfully on towers along the Yenisei River for a couple of months (May-June 2019). Summer rains present the most challenging time for millimeter-wave radio communication, as raindrops are comparable in size to the wavelength (about 4 mm), leading to signal attenuation. In winter, this problem does not occur, as snowflakes, like fog and smoke, are radio-transparent for wireless communication in the 70\/80 GHz range.<\/p>\n<p><img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/9da8e10aab4d2e6c173fbc1b4986c0bc.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\n<img decoding=\"async\" alt=\"Maailmarekord juhtmevaba andmeedastuses: 40 Gbit\/s 11 kilomeetri ulatuses\" src=\"\/wp-content\/uploads\/2019\/11\/9cda146d363d534a1b93551a500a4fab.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n <br \/>\n10 Gbit\/s radio bridge from LLC \"DOK\" successfully handled the weather conditions and distance. Based on the availability statistics, the operator \"Edinstvo\" decided to scale up to 4 parallel wireless channels, each with a capacity of 10GE. The installation was carried out by specialists from the company \"Edinstvo,\" who independently navigated the nuances of configuration following the equipment instructions. At the end of July 2019, the radio bridge. <br \/>\n40 Gbit\/s (4 x 10 Gbit\/s) via Yenisei was put into commercial operation in the presence of the installation team's supervisor from LLC \"DOK.\"<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/467753\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0430\u0432\u0433\u0443\u0441\u0442\u0435 2019 \u0433\u043e\u0434\u0430 \u0432 \u0420\u043e\u0441\u0441\u0438\u0438 \u0432\u043f\u0435\u0440\u0432\u044b\u0435 \u0432 \u043c\u0438\u0440\u0435 (\u0414\u0430, \u044d\u0442\u043e \u043f\u0440\u0430\u0432\u0434\u0430) \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u043b\u0438 \u043a\u043e\u043c\u043c\u0435\u0440\u0447\u0435\u0441\u043a\u0438\u0439 \u043f\u0440\u043e\u0435\u043a\u0442 \u043f\u043e \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u043c\u0443 \u0440\u0435\u0437\u0435\u0440\u0432\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044e \u043c\u0430\u0433\u0438\u0441\u0442\u0440\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u043e\u043f\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u043a\u0430\u0431\u0435\u043b\u044f \u0435\u043c\u043a\u043e\u0441\u0442\u044c\u044e 40 \u0413\u0431\u0438\u0442\/\u0441. \u041e\u043f\u0435\u0440\u0430\u0442\u043e\u0440 \u00ab\u0415\u0434\u0438\u043d\u0441\u0442\u0432\u043e\u00bb, \u0434\u043e\u0447\u0435\u0440\u043d\u044f\u044f \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u044f \u041d\u043e\u0440\u043d\u0438\u043a\u0435\u043b\u044f, \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0442\u0430\u043a\u043e\u0433\u043e \u043a\u0430\u043d\u0430\u043b\u0430 \u043f\u0440\u043e\u0431\u0440\u043e\u0441\u0438\u043b\u0430 11-\u043a\u0438\u043b\u043e\u043c\u0435\u0442\u0440\u043e\u0432\u044b\u0439 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0431\u044d\u043a\u0430\u043f \u0447\u0435\u0440\u0435\u0437 \u0415\u043d\u0438\u0441\u0435\u0439. \u041f\u0435\u0440\u0438\u043e\u0434\u0438\u0447\u0435\u0441\u043a\u0438 \u0432 \u043f\u0440\u0435\u0441\u0441\u0435, \u0438 \u043d\u0430 \u0425\u0430\u0431\u0440\u0435 \u0432 \u0442\u043e\u043c \u0447\u0438\u0441\u043b\u0435, \u043f\u043e\u044f\u0432\u043b\u044f\u044e\u0442\u0441\u044f \u0437\u0430\u043c\u0435\u0442\u043a\u0438 \u043e \u043c\u0438\u0440\u043e\u0432\u044b\u0445 \u0440\u0435\u043a\u043e\u0440\u0434\u0430\u0445 \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0439 \u0441\u0432\u044f\u0437\u0438. 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