{"id":11450,"date":"2022-04-16T10:05:06","date_gmt":"2022-04-16T07:05:06","guid":{"rendered":"https:\/\/kutaybilen.com.tr\/?p=11450"},"modified":"2022-04-16T10:05:06","modified_gmt":"2022-04-16T07:05:06","slug":"wi-fi-denetimi-gurultu-gonderme-proseduruyle-saglanacak","status":"publish","type":"post","link":"https:\/\/kutaybilen.com.tr\/?p=11450","title":{"rendered":"Wi-Fi Denetimi, G\u00fcr\u00fclt\u00fc G\u00f6nderme Prosed\u00fcr\u00fcyle Sa\u011flanacak"},"content":{"rendered":"

WiFi, y\u00fcksek s\u00fcratli data iletimi i\u00e7in tasarland\u0131. Elektrik ve Elektronik M\u00fchendisleri Enstit\u00fcs\u00fc(IEEE), WiFi i\u00e7in irtibat standartlar\u0131n\u0131 802.11 protokol\u00fc ile belirlediler. Bu protokol\u00fc bir\u00e7ok kablosuz y\u00f6nlendiricinin \u00fczerindeki yaz\u0131lardan hat\u0131rlayabiliriz.<\/p>\n

802.11 protokol\u00fcne nazaran, bir ayg\u0131t saniyede en az 1\u00a0megabit (Mbps) g\u00f6ndermedi\u011finde aral\u0131k d\u0131\u015f\u0131 say\u0131lacakt\u0131r. Saniyede yar\u0131m megabit g\u00f6ndermek fizik\u00ee olarak m\u00fcmk\u00fcn olsa bile, protokol buna m\u00fcsaade vermez.\u00a0<\/p>\n

ABD\u2019de bulunan Ulusal Biyomedikal G\u00f6r\u00fcnt\u00fcleme ve Biyom\u00fchendislik Enstit\u00fcs\u00fc(NIBIB) sponsorlu\u011fundaki bir projede Washington \u00dcniversitesi\u2019nden bilgisayar bilimci Neal Patwari, g\u00f6n\u00fcll\u00fclerin konutlar\u0131ndan daima olarak i\u00e7 yer hava kalitesi bilgilerini toplamak i\u00e7in sens\u00f6rleri kullanan bir bir k\u00fcmeyle \u00e7al\u0131\u015f\u0131yor.\u00a0<\/p>\n

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Fakat ara\u015ft\u0131rmac\u0131lar bilgi almay\u0131 b\u0131rakt\u0131\u011f\u0131nda, bir sens\u00f6r\u00fcn fi\u015finin \u00e7ekilip \u00e7ekilmedi\u011fini yahut bir \u015feylerin WiFi sinyalini engelleyip engellemedi\u011fini belirlemenin bir yolu yoktu.\u00a0Sadece k\u00fc\u00e7\u00fck bir ping, k\u00fc\u00e7\u00fck bir \u00f6l\u00e7\u00fc data g\u00f6ndermeleri gerekiyordu, lakin sorun da buydu – protokol buna m\u00fcsaade vermedi.<\/p>\n

Neal Patwari, birebir donan\u0131m\u0131 kullanarak, protokol\u00fcn bir kesimi olmasa bile, bir WiFi ayg\u0131t\u0131ndan daha d\u00fc\u015f\u00fck boyutlu data g\u00f6nderilip g\u00f6nderilemeyece\u011fi \u00fczerinde d\u00fc\u015f\u00fcnmeye ba\u015flad\u0131. Patwari, sorunun tahlili i\u00e7in\u00a0bir yol buldu.\u00a0<\/p>\n

Patwari ve grubu, ara\u015ft\u0131rma sonu\u00e7lar\u0131n\u0131 22 Ekim'de d\u00fczenlenen 25. Milletleraras\u0131 Ta\u015f\u0131nabilir Bilgisayar ve A\u011f \u0130rtibat\u0131 Konferans\u0131 ACM MobiCom 2019'da sundu.<\/p>\n

Neal Patwari ve grubu, i\u00e7 hava kalitesinin ast\u0131m oranlar\u0131n\u0131 nas\u0131l etkiledi\u011fiyle ilgili \u00e7al\u0131\u015fmalar\u0131 i\u00e7in ast\u0131ml\u0131 \u00e7ocuklar\u0131 olan bir\u00e7ok meskenden uzun m\u00fcddet boyunca \u00e7ok say\u0131da bilgiye muhta\u00e7l\u0131k duydular. Ara\u015ft\u0131rmac\u0131lar, kabul eden ailelerin konutlar\u0131na hava kalitesini denetim eden sens\u00f6rler yerle\u015ftirdi. Sens\u00f6rler WiFi arac\u0131l\u0131\u011f\u0131yla ara\u015ft\u0131rmac\u0131lara bilgileri bir y\u0131l boyunca ilettiler.\u00a0<\/p>\n

<\/p>\n

Ara\u015ft\u0131rmac\u0131lar, WiFi sens\u00f6rleri meskenlere kurmaya ba\u015flad\u0131klar\u0131nda bir sorun ile kar\u015f\u0131la\u015ft\u0131lar. Patwari, kablosuz y\u00f6neticinin kar\u015f\u0131s\u0131nda bulunan yatak odas\u0131na bir sens\u00f6r yerle\u015ftirdi. Fakat sens\u00f6r \u00f6n\u00fcne gelen \u00e7ama\u015f\u0131r sepeti nedeniyle temas kuramad\u0131. \u00c7ama\u015f\u0131r sepeti kald\u0131r\u0131ld\u0131\u011f\u0131nda sens\u00f6r irtibat kurabildi.\u00a0<\/p>\n

Sorun \u00e7ama\u015f\u0131r sepetinin ge\u00e7ilmez bir duvar haline gelmesi de\u011fil asl\u0131nda. Sadece\u00a0sens\u00f6r y\u00f6nlendiriciden \u00e7ok uzakta oldu\u011fu i\u00e7in, rastgele bir k\u00fc\u00e7\u00fck bozulma, bilgi transfer surat\u0131n\u0131 protokol\u00fcn m\u00fcsaade verdi\u011fi en d\u00fc\u015f\u00fck transfer surat\u0131 olan 1 Mbps'nin alt\u0131na d\u00fc\u015f\u00fcrd\u00fc.\u00a0B\u00f6ylece ba\u011flant\u0131 kesildi. Bu y\u00fczden ara\u015ft\u0131rmac\u0131lar, sens\u00f6r\u00fcn\u00fc temas\u0131n\u0131n sonland\u0131r\u0131l\u0131p sonland\u0131r\u0131lmad\u0131\u011f\u0131n\u0131 yahut sens\u00f6r\u00fcn tak\u0131l\u0131 olup olmad\u0131\u011f\u0131n\u0131 anlaman\u0131n bir yolunu bulmaya \u00e7al\u0131\u015ft\u0131lar.\u00a0<\/p>\n

Patwari ve tak\u0131m\u0131, sens\u00f6r\u00fc bilgi g\u00f6nderen bir \u015fey olmazda ses g\u00f6nderen bir \u015fey olarak kabul etti. \u00c7a\u011fda\u015f konutlar, kablosuz g\u00fcr\u00fclt\u00fcyle doludur – bilgisayarlardan televizyonlara, m\u00fczik setlerinden cep telefonlar\u0131na – sinyaller her yerdedir.\u00a0Brigham Young \u00dcniversitesi'nde yard\u0131mc\u0131 do\u00e7ent olan Phil Lundrigan liderli\u011findeki grup, bunu avantajlar\u0131 i\u00e7in kullanabileceklerini d\u00fc\u015f\u00fcn\u00fcyordu.\u00a0WiFi sens\u00f6r\u00fcne bir dizi 1 ve 0 dizisini programlad\u0131lar.\u00a0Y\u00f6nlendirici, bu kal\u0131b\u0131 etraftaki kablosuz seslerden ay\u0131rt edebildi. B\u00f6ylelikle y\u00f6nlendirici sens\u00f6r\u00fcn datalar\u0131n\u0131 alamasa bile, ortam g\u00fcr\u00fclt\u00fcs\u00fcndeki bu deseni se\u00e7ebilir ve sens\u00f6r\u00fcn hala ba\u011fl\u0131 oldu\u011funu anlayabilir.<\/p>\n

WiFi i\u00e7in bu yenilik i\u00e7in yaln\u0131zca bir ba\u015flang\u0131\u00e7.\u00a0Lundrigan'a nazaran \u201cuzun menzilli\u201d kablosuz protokolleri daha da uzun menzilli yapabilir yahut bu prosed\u00fcr,\u00a0bluetooth yahut h\u00fccresel \u00fczere \u00f6teki kablosuz teknolojilerin \u00fczerinde kullan\u0131labilir. Lundrigan, “WiFi'nin ne yapt\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z olarak data g\u00f6nderip alabiliriz. Gereksinimimiz olan tek \u015fey g\u00fc\u00e7 iletme ve sonra g\u00fcr\u00fclt\u00fc \u00f6l\u00e7\u00fcm\u00fc alma yetene\u011fi.” <\/em>formunda konu\u015ftu.<\/p>\n

<\/div>\n","protected":false},"excerpt":{"rendered":"

WiFi, y\u00fcksek s\u00fcratli data iletimi i\u00e7in tasarland\u0131. Elektrik ve Elektronik M\u00fchendisleri Enstit\u00fcs\u00fc(IEEE), WiFi i\u00e7in irtibat standartlar\u0131n\u0131 802.11 …<\/p>\n","protected":false},"author":1,"featured_media":11451,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[15],"tags":[2450,1300,1913,882,2449],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/11450"}],"collection":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=11450"}],"version-history":[{"count":1,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/11450\/revisions"}],"predecessor-version":[{"id":11452,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/11450\/revisions\/11452"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/media\/11451"}],"wp:attachment":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=11450"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=11450"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=11450"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}