{"id":1820,"date":"2022-03-06T00:33:40","date_gmt":"2022-03-06T04:33:40","guid":{"rendered":"https:\/\/www.umes.edu\/engineering\/?page_id=1820"},"modified":"2022-03-06T00:33:40","modified_gmt":"2022-03-06T04:33:40","slug":"time-reversal-in-wireless-communications","status":"publish","type":"page","link":"https:\/\/www.umes.edu\/engineering\/time-reversal-in-wireless-communications\/","title":{"rendered":"Time Reversal in Wireless Communications"},"content":{"rendered":"\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:20.29%\">\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.umes.edu\/engineering\/signal-processing-and-intelligent-sensing-laboratory\/\" data-type=\"page\" data-id=\"1786\">OVERVIEW<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.umes.edu\/engineering\/spis-lab-current-projects\/\" data-type=\"page\" data-id=\"1788\">PROJECTS<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.umes.edu\/engineering\/facilities\/\" data-type=\"page\" data-id=\"1790\">FACILITIES<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.umes.edu\/engineering\/team-members\/\" data-type=\"page\" data-id=\"1792\">TEAM<\/a><\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"\/engineering\/yuanwei-jin\/\">HOME<\/a><\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:46.38%\">\n<p class=\"wp-block-paragraph\">Project &#8211; Time Reversal in Wireless Communications<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Project Description<\/strong>: this project studies time reversal transmission strategies in high data rate communications\u00a0<\/li><li><strong>About Time Reversal in UWB Applications<\/strong><\/li><li>We study the multiple antenna time reversal downlink transmission in an ultra-wideband (UWB) communication system which consists of access points and users. The access point has multiple antennas and the user has a single antenna. We design the UWB beamformer that focuses on the intended user while minimizing its interference on unintended users and eavesdropping access points. We show that the designed UWB beamformer is equivalent to the time reversal focusing and nulling schemes and yields better performance than the conventional delay line wideband beamformer. We verify our results using experimentally measured electromagnetic data in an indoor environment.<\/li><\/ul>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"560\" height=\"420\" src=\"https:\/\/www.umes.edu\/engineering\/wp-content\/uploads\/sites\/116\/2022\/03\/berplot2.jpg\" alt=\"\" class=\"wp-image-1821\" srcset=\"https:\/\/www.umes.edu\/engineering\/wp-content\/uploads\/sites\/116\/2022\/03\/berplot2.jpg 560w, https:\/\/www.umes.edu\/engineering\/wp-content\/uploads\/sites\/116\/2022\/03\/berplot2-300x225.jpg 300w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>\u00a0Fig.-1:Bit error rate plot for focusing beamformer, focusing and nulling beamformer, and delay-line beamformer.\u00a0<\/li><\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">Selected Publications:&nbsp;<\/h4>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Y. Jin<\/strong>, J. Moura, N. O&#8217;Donoughue, &#8220;Adaptive Time Reversal Beamforming in Dense Multipath Communication Networks&#8221;, 42nd Asilomar Conference on Signals, Systems, and Computers, Pacific Grove, CA, October 26-29, 2008<\/li><li><strong>Y. Jin<\/strong>, Y. Jiang, and J.Moura, &#8220;Multiple Antenna Time Reversal Transmissions in Ultra-wideband Communications&#8221;, 50th Globe Communications Conference, Globecom&#8217;07, Washington DC, Nov. 26-30, 2007<\/li><\/ul>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:33.33%\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Project &#8211; Time Reversal in Wireless Communications Project Description: this project studies time reversal transmission strategies in high data rate communications\u00a0 About Time Reversal in UWB Applications We study the multiple antenna time reversal downlink transmission in an ultra-wideband (UWB) communication system which consists of access points and users. The access point has multiple antennas&#8230;<span class=\"cpschool-read-more-link-holder\"><a class=\"btn btn-basic cpschool-read-more-link\" href=\"https:\/\/www.umes.edu\/engineering\/time-reversal-in-wireless-communications\/\">Read more <span class=\"sr-only\">Time Reversal in Wireless Communications<\/span><\/a><\/span><\/p>\n","protected":false},"author":2,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_coblocks_attr":"","_coblocks_dimensions":"","_coblocks_responsive_height":"","_coblocks_accordion_ie_support":"","footnotes":""},"folder":[],"class_list":["post-1820","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/pages\/1820","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/comments?post=1820"}],"version-history":[{"count":0,"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/pages\/1820\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/media?parent=1820"}],"wp:term":[{"taxonomy":"folder","embeddable":true,"href":"https:\/\/www.umes.edu\/engineering\/wp-json\/wp\/v2\/folder?post=1820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}