{"id":91044,"date":"2018-03-11T10:09:40","date_gmt":"2018-03-11T10:09:40","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/diseno-de-constelaciones-para-el-canal-gaussiano-controladas-por-los-estada%c2%adsticos-de-fuentes-con-memoria-basado-en-la-transformada-burrows-wheeler\/"},"modified":"2018-03-11T10:09:40","modified_gmt":"2018-03-11T10:09:40","slug":"diseno-de-constelaciones-para-el-canal-gaussiano-controladas-por-los-estada%c2%adsticos-de-fuentes-con-memoria-basado-en-la-transformada-burrows-wheeler","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/ciencias-tecnologicas\/diseno-de-constelaciones-para-el-canal-gaussiano-controladas-por-los-estada%c2%adsticos-de-fuentes-con-memoria-basado-en-la-transformada-burrows-wheeler\/","title":{"rendered":"Dise\u00f1o de constelaciones para el canal gaussiano controladas por los estad\u00edsticos de fuentes con memoria basado en la transformada burrows-wheeler"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Est\u00edbaliz Loyo Mendivil <\/strong><\/h2>\n<p>Hace 60 a\u00f1os claude shannon marc\u00f3 un punto de inflexi\u00f3n en la historia de las comunicaciones mediante la formulaci\u00f3n de la teor\u00eda de la informaci\u00f3n. Desde entonces se han sucedido una gran cantidad de estudios cuyo principal objetivo ha sido la reducci\u00f3n de la potencia y\/o ancho de banda necesarios para la transmisi\u00f3n de informaci\u00f3n desde el emisor hasta el destinatario de la misma. Todos estas investigaciones tienen su fundamento en los dos teoremas que conforman la base de dicha teor\u00eda, el teorema de compresi\u00f3n de fuente y el teorema de codificaci\u00f3n de canal. No obstante, cuando la complejidad es una variable restrictiva en el dise\u00f1o, estas dos teor\u00edas se funden dando lugar a esquemas de codificaci\u00f3n conjunta  fuente-canal, lo cual se traduce en una mayor eficiencia.   concretamente en esta tesis se propone un novedoso esquema de codificaci\u00f3n conjunta fuente-canal en el que el dise\u00f1o de la constelaci\u00f3n sobre el canal gaussiano viene controlado por las caracter\u00edsticas estad\u00edsticas de los s\u00edmbolos generados por la fuente de informaci\u00f3n. Precisamente dichas caracter\u00edsticas resultan de aplicar la transformaci\u00f3n reversible burrows-wheeler sobre la fuente con memoria. Se consigue as\u00ed el objetivo \u00faltimo de esta tesis; explotar la correlaci\u00f3n estad\u00edstica de la fuente para reducir la potencia de transmisi\u00f3n necesaria.   60 years ago claude shannon introduced a new paradigm in the communications history, known as information theory. Since then, one of the earliest goals of a communication system design has been the reduction of the power and\/or the bandwidth needed for the data transmission from a source to a destination. All these studies have their knowhow on the two main premises of information theory, i.E. Source coding and channel coding theorems. Nevertheless. When the complexity is a constraint in the design, joint source-channel coding schemes achieve an improvement in the system performance.  in this thesis we propose a new joint source-channel coding scheme over the gaussian channel, where the constellation design is controlled by the statistical properties of the memory source. These properties result from applying the reversible burrows-wheeler transform to the output of the source. Thus, the statistical correlation among the output symbols is extracted and, consecuently, the aim of this thesis is completely achieved, reducing the required transmission power.<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Dise\u00f1o de constelaciones para el canal gaussiano controladas por los estad\u00edsticos de fuentes con memoria basado en la transformada burrows-wheeler<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Dise\u00f1o de constelaciones para el canal gaussiano controladas por los estad\u00edsticos de fuentes con memoria basado en la transformada burrows-wheeler <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Est\u00edbaliz Loyo Mendivil <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Navarra<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 22\/12\/2008<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Pedro Crespo Bofill<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Carlos Bastero de eleizalde <\/li>\n<li>Javier Garc\u00eda fr\u00edas (vocal)<\/li>\n<li>Ana Mar\u00eda Macarulla arenaza (vocal)<\/li>\n<li>Javier Rodr\u00edguez fonollosa (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Est\u00edbaliz Loyo Mendivil Hace 60 a\u00f1os claude shannon marc\u00f3 un punto de inflexi\u00f3n en la historia [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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