{"id":2914,"date":"2011-01-24T15:53:42","date_gmt":"2011-01-24T20:53:42","guid":{"rendered":"http:\/\/sciencebusiness.technewslit.com\/?p=2914"},"modified":"2011-01-24T15:53:42","modified_gmt":"2011-01-24T20:53:42","slug":"engineers-develop-wireless-spectrum-sensing-algorithms","status":"publish","type":"post","link":"https:\/\/technewslit.com\/sciencebusiness\/?p=2914","title":{"rendered":"Engineers Develop Wireless Spectrum-Sensing Algorithms"},"content":{"rendered":"<p><a href=\"http:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2011\/01\/CellPhoneTower_RichardSmith_Flickr.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-full wp-image-2915\" title=\"CellPhoneTower_RichardSmith_Flickr\" src=\"http:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2011\/01\/CellPhoneTower_RichardSmith_Flickr.jpg\" alt=\"Cell phone tower (Richard Smith\/Flickr)\" width=\"250\" height=\"200\" srcset=\"https:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2011\/01\/CellPhoneTower_RichardSmith_Flickr.jpg 250w, https:\/\/technewslit.com\/sciencebusiness\/wp-content\/uploads\/2011\/01\/CellPhoneTower_RichardSmith_Flickr-150x120.jpg 150w\" sizes=\"auto, (max-width: 250px) 100vw, 250px\" \/><\/a>Researchers at <a href=\"http:\/\/www.eng.vt.edu\/news\/virginia-tech-engineers-work-interdigital-increase-speed-and-accessibility-future-wireless-syst\">Virginia Tech<\/a> in Blacksburg have developed a set of mathematical rules to help build more reliable and efficient spectrum-sensing techniques needed to meet the expanding demand for wireless technologies. This first phase of a more than two-year study is funded by wireless technology developer <a href=\"http:\/\/www.interdigital.com\/index.php\">InterDigital<\/a> of King of Prussia, Pennsylvania.<\/p>\n<p>Spectrum-sensing technologies are expected to support high speed internet in rural areas, enable the creation of super Wi-Fi networks, and support the implementation of smart grid technologies, but the task is considered daunting. In a recent report by the <a href=\"http:\/\/www.broadband.gov\/download-plan\/\">Federal Communications Commission<\/a> on the need to ensure all Americans have access to broadband capability, it was called &#8220;the greatest infrastructure challenge of the 21st century.&#8221;<\/p>\n<p>Virginia Tech engineering professor Claudio da Silva says a key part of solving this challenge is in the design of wireless systems that more efficiently use the limited radio spectrum resources. &#8220;Devices first identify underutilized spectrum with the use of spectrum databases and\/or spectrum-sensing,&#8221; says da Silva, adding, that following pre-defined rules, they then &#8220;dynamically access the &#8216;best&#8217; frequency bands on an opportunistic and non-interfering basis.<\/p>\n<p>William Headley, one of the Ph.D. students working on this project, describes the first phase of the team&#8217;s work. &#8220;By exploiting location-dependent signal propagation characteristics,&#8221; says Headley, &#8220;we have developed efficient sensing algorithms that enable a set of devices to work together to determine spectrum opportunities.&#8221;<\/p>\n<p>&#8220;The U.S. government has plans to release even more spectrum for unlicensed broadband wireless access,&#8221; adds da Silva. &#8220;While sensing is not a requirement for television band access, the Federal Communications Commission is encouraging the continued development of spectrum-sensing techniques for potential use in these new bands.&#8221;<\/p>\n<p>Photo: <a href=\"http:\/\/www.flickr.com\/photos\/smith\/462515561\/\">Richard Smith\/Flickr<\/a><\/p>\n<p style=\"text-align: center;\">*\u00a0\u00a0\u00a0\u00a0 *\u00a0\u00a0\u00a0\u00a0 *<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Researchers at Virginia Tech in Blacksburg have developed a set of mathematical rules to help build more reliable and efficient spectrum-sensing techniques needed to meet the expanding demand for wireless technologies. This first phase of a more than two-year study is funded by wireless technology developer InterDigital of King of Prussia, Pennsylvania. Spectrum-sensing technologies are [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[86,112,26],"class_list":["post-2914","post","type-post","status-publish","format-standard","hentry","category-products","tag-engineering","tag-mathematics","tag-university"],"_links":{"self":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts\/2914","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2914"}],"version-history":[{"count":1,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts\/2914\/revisions"}],"predecessor-version":[{"id":2916,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=\/wp\/v2\/posts\/2914\/revisions\/2916"}],"wp:attachment":[{"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2914"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=2914"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/technewslit.com\/sciencebusiness\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=2914"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}