{"id":86250,"date":"2020-06-23T13:42:20","date_gmt":"2020-06-23T11:42:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/novyj-standart-802-11ah-high-efficiency-wlan-chto-zhe-v-nem-novogo-i-kogda-ego-zhdat"},"modified":"2020-06-23T13:42:20","modified_gmt":"2020-06-23T11:42:20","slug":"novyj-standart-802-11ah-high-efficiency-wlan-chto-zhe-v-nem-novogo-i-kogda-ego-zhdat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/administrirovanie\/novyj-standart-802-11ah-high-efficiency-wlan-chto-zhe-v-nem-novogo-i-kogda-ego-zhdat","title":{"rendered":"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Grupi i pun\u00ebs filloi pun\u00ebn mbi standardin q\u00eb n\u00eb vitin 2014 dhe tani po punon mbi draftin 3.0. Kjo \u00ebsht\u00eb disi e ndryshme nga brezat e m\u00ebparsh\u00ebm t\u00eb standardeve 802.11, pasi atje e gjith\u00eb puna ishte p\u00ebrfunduar n\u00eb dy drafta. Kjo ndodh p\u00ebr shkak t\u00eb numrit mjaft t\u00eb madh t\u00eb ndryshimeve komplekse t\u00eb planifikuara, t\u00eb cilat p\u00ebrkat\u00ebsisht k\u00ebrkojn\u00eb testim m\u00eb t\u00eb detajuar dhe t\u00eb nd\u00ebrlikuar t\u00eb pajtueshm\u00ebris\u00eb. Fillimisht, p\u00ebr grupin ishte vendosur detyra p\u00ebr t\u00eb p\u00ebrmir\u00ebsuar efikasitetin e p\u00ebrdorimit t\u00eb spektrit p\u00ebr t\u00eb rritur kapacitetin e WLAN me densitet t\u00eb lart\u00eb t\u00eb stacioneve dhe pikave t\u00eb aksesit. Disa nga faktor\u00ebt kryesor\u00eb p\u00ebr zhvillimin e standardit ishin: rritja e numrit t\u00eb abonent\u00ebve mobil, transmetimet live n\u00eb rrjetet sociale (theks mbi trafikun upload) dhe natyrisht IoT.<\/p>\n<h4>Novacionet p\u00ebrshkruhen n\u00eb m\u00ebnyr\u00eb schematike si m\u00eb posht\u00eb:<\/h4>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/36a0bd4ee33a05f57900ba3ea9c409fc.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><\/p>\n<h4><b>MIMO 8&#215;8, more spatial streams<\/b><\/h4>\n<p>\n\u041f\u043e\u044f\u0432\u0438\u0442\u0441\u044f \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0430 MIMO 8&#215;8, \u0434\u043e 8SS (Spatial Streams). \u0421\u0442\u0430\u043d\u0434\u0430\u0440\u0442 802.11\u0430\u0441 \u0442\u0430\u043a\u0436\u0435 \u043e\u043f\u0438\u0441\u044b\u0432\u044b\u0432\u0430\u043b \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u0443 8 SS \u0432 \u0442\u0435\u043e\u0440\u0438\u0438, \u043d\u043e \u043d\u0430 \u043f\u0440\u0430\u043a\u0442\u0438\u043a\u0435 \u0442\u043e\u0447\u043a\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 802.11\u0430\u0441 \u00abwave 2\u00bb \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u043b\u0438\u0441\u044c \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 4 \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0435\u043d\u043d\u044b\u0445 \u043f\u043e\u0442\u043e\u043a\u043e\u0432. \u0421\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0442\u043e\u0447\u043a\u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u0441 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 MIMO 8\u04458 \u0441\u043c\u043e\u0433\u0443\u0442 \u043e\u0434\u043d\u043e\u0432\u0440\u0435\u043c\u0435\u043d\u043d\u043e \u043e\u0431\u0441\u043b\u0443\u0436\u0438\u0432\u0430\u0442\u044c \u0434\u043e 8 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 1\u04451, \u0447\u0435\u0442\u044b\u0440\u0435\u0445 \u043a\u043b\u0438\u0435\u043d\u0442\u043e\u0432 2\u04452 \u0438\u0442\u0434.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/04f9880565115724d4c36ee000323846.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h4><b>MU-MIMO DL\/UL (Multi-User MIMO Downlink\/Uplink)<\/b><\/h4>\n<p>\nMb\u00ebshtetje e nj\u00ebkohshme p\u00ebr modin multiuser si p\u00ebr kanalin e shkarkimit ashtu edhe p\u00ebr at\u00eb t\u00eb ngarkes\u00ebs. Mund\u00ebsia e aksesit konkurrues nj\u00ebkoh\u00ebsh n\u00eb kanalin e ngarkes\u00ebs, grupimi si t\u00eb dh\u00ebnave ashtu edhe fushave t\u00eb kontrollit do t\u00eb lejoj\u00eb uljen e \"overhead\"-it, duke \u00e7uar n\u00eb rritjen e kapacitetit dhe uljen e koh\u00ebs s\u00eb p\u00ebrgjigjes.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/4bf73e1a736677d222292fb240093278.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h4><b>Simbol i gjat\u00eb OFDM<\/b><\/h4>\n<p>\nOFDM ka funksionuar n\u00eb standardet 802.11a\/g\/n\/ac p\u00ebr rreth 20 vjet pa ndonj\u00eb ndryshim. Sipas standardit, n\u00eb nj\u00eb kanal me gjer\u00ebsi 20MGz vendosen 64 n\u00ebnb\u00ebshtetje, t\u00eb cilat ndahen me nj\u00eb interval prej 312,5 kHz (20MHz\/64). Duke pasur parasysh se industria e gjysm\u00ebp\u00ebr\u00e7uesve ka b\u00ebr\u00eb p\u00ebrparime t\u00eb m\u00ebdha gjat\u00eb k\u00ebsaj periudhe, n\u00eb 802.11ax propozimi \u00ebsht\u00eb nj\u00eb kat\u00ebshe e rritjes s\u00eb n\u00ebnb\u00ebshtetjeve n\u00eb 256, me nj\u00eb interval midis n\u00ebnb\u00ebshtetjeve prej 78,125 kHz. Gjat\u00ebsia e simbolit OFDM (koha) \u00ebsht\u00eb nj\u00eb sasi q\u00eb \u00ebsht\u00eb e p\u00ebrpjestueshme invers me frekuenc\u00ebn, dhe p\u00ebr pasoj\u00eb gjithashtu do t\u00eb rritet 4 her\u00eb nga 3,2 \u03bcs n\u00eb 12,8 \u03bcs. Ky p\u00ebrmir\u00ebsim do t\u00eb rris\u00eb efikasitetin dhe besueshm\u00ebrin\u00eb e transmetimit t\u00eb t\u00eb dh\u00ebnave, ve\u00e7an\u00ebrisht n\u00eb WLAN \"outdoor\".<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/419a44a117fc1ec3668cb96606a397be.png\" style=\"display:block;margin: 0 auto;\" \/><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/387221308864da403503298929f1ca0a.png\" style=\"display:block;margin: 0 auto;\" \/> <\/p>\n<h4><b>Gjer\u00ebsi e Zgjatur<\/b><\/h4>\n<p>\nJan\u00eb shtuar vlera t\u00eb reja t\u00eb intervaleve mbrojt\u00ebse midis frame-ve, t\u00eb cilat tani mund t\u00eb jen\u00eb 1.6 \u00b5s dhe 3.2 \u00b5s p\u00ebr WLAN \u00aboutdoor\u00bb, nd\u00ebrsa intervali p\u00ebr \u00abindoor\u00bb mbetet 0.8 \u00b5s. Formati i ri i paketave me nj\u00eb preamb\u00ebl m\u00eb t\u00eb besueshme (t\u00eb gjat\u00eb). E gjith\u00eb kjo do t\u00eb mund\u00ebsoj\u00eb nj\u00eb rritje t\u00eb shpejt\u00ebsis\u00eb s\u00eb lidhjes deri n\u00eb 4 her\u00eb n\u00eb kufirin e rrjetit.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/52b4048a122395892e753fb1e2edb143.png\" style=\"display:block;margin: 0 auto;\" \/> <\/p>\n<h4><b>OFDMA DL\/UL (Q \uc811\uadfc\u00f3stico dhe ndarjes ortogonale t\u00eb frekuencave t\u00eb shumta)<\/b><\/h4>\n<p>\nNj\u00eb nga ndryshimet kryesore \u00ebsht\u00eb zbatimi i OFDMA n\u00eb vend t\u00eb OFDM. Teknologjia OFDMA p\u00ebrdoret n\u00eb rrjetet LTE dhe ka d\u00ebshmuar efikasitet t\u00eb lart\u00eb. Dallimi \u00ebsht\u00eb se gjat\u00eb transmetimit n\u00eb OFDM, e gjith\u00eb kanali frekuencor merret dhe derisa transmetimi t\u00eb mbyllet, klienti tjet\u00ebr nuk mund t\u00eb shfryt\u00ebzoj\u00eb burimin e frekuenc\u00ebs. N\u00eb OFDMA, kjo zgjidhet duke ndar\u00eb kanalin n\u00eb n\u00ebnkanale t\u00eb ndryshme, t\u00eb quajtura RU (Nj\u00ebsit\u00eb e Burimeve). N\u00eb praktik\u00eb, kjo do t\u00eb thot\u00eb se 256 n\u00ebnfrekuenca t\u00eb nj\u00eb kanali 20MHz mund t\u00eb ndahen n\u00eb RU me 26 n\u00ebnfrekuenca. P\u00ebr secil\u00ebn RU mund t\u00eb caktohet skema e saj e kodimit MCS, si dhe fuqia e transmetimit.<br \/>\nN\u00eb p\u00ebrgjith\u00ebsi, kjo do t\u00eb sjell\u00eb nj\u00eb rritje t\u00eb r\u00ebnd\u00ebsishme t\u00eb kapacitetit t\u00eb rrjetit si n\u00eb t\u00ebr\u00ebsi, ashtu edhe n\u00eb kapacitetin p\u00ebr \u00e7do klient t\u00eb ve\u00e7ant\u00eb.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/10ec320ccd52e9689906cd1050fae12f.png\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/ef07d56ff3145c1df555e78418366368.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h4><b>1024 QAM<\/b><\/h4>\n<p>\nJan\u00eb shtuar MCS t\u00eb reja (Grupet e Modulimit dhe Kodimit) 10 dhe 11 p\u00ebr modulimin 1024-QAM. Pra, tani nj\u00eb simbol n\u00eb k\u00ebt\u00eb skem\u00eb do t\u00eb transportoj\u00eb 10 bit informacioni, dhe kjo \u00ebsht\u00eb nj\u00eb rritje prej 25% krahasuar me 8 bit n\u00eb 256-QAM.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/ccb86190a62b645de5c1d3b879ddff29.png\" style=\"display:block;margin: 0 auto;\" \/> <\/p>\n<h4><b>TWT (Koha e Zgjimit t\u00eb Synuar) \u2013 \u00abPlanifikimi i burimeve t\u00eb Up Link\u00bb<\/b><\/h4>\n<p>\nMekanizmi i kursimit t\u00eb energjis\u00eb, i cili ka treguar efektivitet n\u00eb standardin 802.11ah dhe tani \u00ebsht\u00eb adaptuar n\u00eb 802.11ax. TWT lejon pikave t\u00eb qasjes q\u00eb t'u komunikojn\u00eb klient\u00ebve se kur t\u00eb kalojn\u00eb n\u00eb modin e kursimit t\u00eb energjis\u00eb, si dhe siguron nj\u00eb orar p\u00ebr kur duhet t\u00eb zgjohen p\u00ebr t\u00eb pranuar ose d\u00ebrguar informacione. K\u00ebto jan\u00eb periudha shum\u00eb t\u00eb shkurtra kohe, por mund\u00ebsia p\u00ebr t\u00eb fjetur shum\u00eb periudha t\u00eb shkurtra do t\u00eb ket\u00eb nj\u00eb r\u00ebnd\u00ebsi t\u00eb madhe p\u00ebr funksionimin e bateris\u00eb. Reduktimi i \u00abkonflikteve\u00bb dhe kolizioneve midis klient\u00ebve do t\u00eb rris\u00eb koh\u00ebn q\u00eb kalojn\u00eb n\u00eb modin e kursimit t\u00eb energjis\u00eb. Sipas llojit t\u00eb trafikut, p\u00ebrmir\u00ebsimi i konsumit t\u00eb energjis\u00eb mund t\u00eb arrij\u00eb nga 65% deri n\u00eb 95% (sipas testeve t\u00eb Broadcom). P\u00ebr pajisjet IoT, mb\u00ebshtetja TWT \u00ebsht\u00eb jasht\u00ebzakonisht e r\u00ebnd\u00ebsishme.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/0b06bbc6184eec0eb5f803b232ab44f1.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<h4><b>BSS Color \u2013 Riciklimi Hap\u00ebsinor<\/b><\/h4>\n<p>\nP\u00ebr t\u00eb rritur kapacitetin e rrjetit WLAN me densitet t\u00eb lart\u00eb, \u00ebsht\u00eb e nevojshme t\u00eb rritet frekuenca e rip\u00ebrdorimit t\u00eb burimeve kanalike. P\u00ebr t\u00eb ulur ndikimin e BSS-ve fqinje q\u00eb punojn\u00eb n\u00eb t\u00eb nj\u00ebjtin kanal, propozohet etiketimi i tyre me \"color-bit\". Kjo do t\u00eb lejoj\u00eb p\u00ebrshtatjen dinamike t\u00eb ndjeshm\u00ebris\u00eb CCA (evaluimi i kanaleve t\u00eb qarta) dhe fuqis\u00eb s\u00eb transmetuesit. Kapaciteti i rrjetit do t\u00eb rritet p\u00ebr shkak t\u00eb p\u00ebrforcimit t\u00eb planit kanalor, nd\u00ebrkoh\u00eb q\u00eb nd\u00ebrhyrjet ekzistuese do t\u00eb ken\u00eb ndikim m\u00eb t\u00eb vog\u00ebl n\u00eb zgjedhjen e MCS.<\/p>\n<p><img decoding=\"async\" alt=\"Standardi i ri 802.11ax (WLAN me Efikasitet t\u00eb Lart\u00eb), \u00e7far\u00eb ka t\u00eb re dhe kur pritet t\u00eb arrij\u00eb?\" src=\"\/wp-content\/uploads\/2020\/06\/3c6764f39a83577809d9bfb07205cfd4.png\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>N\u00eb lidhje me p\u00ebrdit\u00ebsimin e af\u00ebrt t\u00eb standardeve t\u00eb siguris\u00eb deri n\u00eb <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/company\/globalsign\/blog\/415391\/\">WPA3<\/a><\/noindex>, jo t\u00eb gjith\u00eb do t\u00eb ken\u00eb mund\u00ebsin\u00eb t\u00eb zgjidhin \u00e7\u00ebshtje sigurie me nj\u00eb p\u00ebrdit\u00ebsim t\u00eb thjesht\u00eb n\u00eb softuer, prandaj kompania Extreme Networks do t\u00eb prezantoj\u00eb pik\u00eb qasje me mb\u00ebshtetje harduerike p\u00ebr 802.11ah dhe WPA3 n\u00eb kat\u00ebrmujorin e kat\u00ebrt t\u00eb vitit 2018. <\/p>\n<p>Shtes\u00eb n\u00eb lidhje me <noindex><a rel=\"nofollow\" href=\"https:\/\/habr.com\/post\/348472\/\">802.11ah<\/a><\/noindex>.<br \/>\n<br \/>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/company\/extremenetworks\/blog\/416327\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0420\u0430\u0431\u043e\u0447\u0430\u044f \u0433\u0440\u0443\u043f\u0430 \u043d\u0430\u0447\u0430\u043b\u0430 \u0440\u0430\u0431\u043e\u0442\u0443 \u043d\u0430\u0434 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u043c \u0435\u0449\u0435 \u0432 2014 \u0433\u043e\u0434\u0443 \u0438 \u0441\u0435\u0439\u0447\u0430\u0441 \u0438\u0434\u0435\u0442 \u0440\u0430\u0431\u043e\u0442\u0430 \u043d\u0430\u0434 draft3.0. \u0427\u0442\u043e \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043e\u0442\u043b\u0438\u0447\u0430\u0435\u0442\u0441\u044f \u043e\u0442 \u043f\u0440\u0435\u0434\u044b\u0434\u0443\u0449\u0438\u0445 \u043f\u043e\u043a\u043e\u043b\u0435\u043d\u0438\u0439 \u0441\u0442\u0430\u043d\u0434\u0430\u0440\u0442\u043e\u0432 802.11, \u0432\u0435\u0434\u044c \u0442\u0430\u043c \u0432\u0441\u044f \u0440\u0430\u0431\u043e\u0442\u0430 \u0443\u043a\u043b\u0430\u0434\u044b\u0432\u0430\u043b\u0430\u0441\u044c \u0432 \u0434\u0432\u0430 \u0434\u0440\u0430\u0444\u0442\u0430. \u041f\u0440\u043e\u0438\u0441\u0445\u043e\u0434\u0438\u0442 \u044d\u0442\u043e \u043f\u043e \u043f\u0440\u0438\u0447\u0438\u043d\u0435 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0431\u043e\u043b\u044c\u0448\u043e\u0433\u043e \u0447\u0438\u0441\u043b\u0430 \u0437\u0430\u043f\u043b\u0430\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043b\u0435\u043a\u0441\u043d\u044b\u0445 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u0441\u043e\u043e\u0442\u0432\u0435\u0442\u0441\u0442\u0432\u0435\u043d\u043d\u043e \u0442\u0440\u0435\u0431\u0443\u044e\u0442 \u0431\u043e\u043b\u0435\u0435 \u0434\u0435\u0442\u0430\u043b\u044c\u043d\u043e\u0433\u043e \u0438 \u0441\u043b\u043e\u0436\u043d\u043e\u0433\u043e \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u0438\u043c\u043e\u0441\u0442\u0438. \u0418\u0437\u043d\u0430\u0447\u0430\u043b\u044c\u043d\u043e \u043f\u0435\u0440\u0435\u0434 \u0433\u0440\u0443\u043f\u043f\u043e\u0439 \u0441\u0442\u043e\u044f\u043b\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":86251,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-86250","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - 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