{"id":95250,"date":"2018-03-11T10:15:10","date_gmt":"2018-03-11T10:15:10","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/prestaciones-de-las-redes-ad-hoc-inalambricas-teoria-a-traves-de-capas\/"},"modified":"2018-03-11T10:15:10","modified_gmt":"2018-03-11T10:15:10","slug":"prestaciones-de-las-redes-ad-hoc-inalambricas-teoria-a-traves-de-capas","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/tecnologia-de-las-telecomunicaciones\/prestaciones-de-las-redes-ad-hoc-inalambricas-teoria-a-traves-de-capas\/","title":{"rendered":"Prestaciones de las redes ad hoc inal\u00e1mbricas: teor\u00eda a trav\u00e9s de capas"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Eduardo Morgado Reyes <\/strong><\/h2>\n<p>T\u00edtulo de la tesis: prestaciones de las redes ad hoc inal\u00e1mbricas: teor\u00eda a trav\u00e9s de capa resumen: la presente tesis doctoral, desarrollada en el \u00e1mbito de las redes ad hoc inal\u00e1mbricas, profundiza en un estudio anal\u00edtico de las prestaciones, fundamentalmente en t\u00e9rminos de ber (bit error rate) extremo a extremo, de las mhwn (multihop wireless network). Este estudio se realiza desde una perspectiva a trav\u00e9s de capas (o multicapa) que tiene en cuenta las capas f\u00edsica, de enlace y de red del modelo de referencia osi (open system interconnection). La ber extremo a extremo es un par\u00e1metro fundamental para evaluar las prestaciones de las mhwn; sin embargo, su caracterizaci\u00f3n anal\u00edtica todav\u00eda est\u00e1 por determinar cuando interact\u00faan efectos de distintas capas, motivo fundamental para la realizaci\u00f3n de esta tesis. nuestro estudio comienza caracterizando, de forma anal\u00edtica precisa, la ber extremo a extremo al considerar \u00fanicamente los efectos de la capa f\u00edsica. A continuaci\u00f3n, sin considerar a\u00fan la interferencia (capa de enlace) en la red ad hoc, incorporamos los efectos del protocolo de encaminamiento (capa de red), mediante un modelo anal\u00edtico de la directividad de las rutas. para completar nuestro an\u00e1lisis multicapa, proponemos un modelo anal\u00edtico que determina la potencia de interferencia multisalto en mhwn. A partir de este modelo multicapa, que tiene en cuenta las interacciones entre las ya citadas capas, deducimos expresiones de la ber extremo a extremo en presencia de interferencia multisalto, tanto en funci\u00f3n del n\u00famero de saltos que componen la ruta, como en funci\u00f3n de la distancia eucl\u00eddea que separa sus extremos. Adem\u00e1s, para obtener dichas expresiones, formulamos previamente los modelos que relacionan ambas escalas (n\u00famero de saltos y distancia entre extremos) de las rutas en mhwn. tras este an\u00e1lisis de prestaciones en comunicaciones \u00abconvencionales\u00bb, exploramos dos novedosos \u00e1mbitos de las redes de comunicaci\u00f3n con el objetivo de reducir la ber extremo a extremo en mhwn: la comunicaci\u00f3n cooperativa y la codificaci\u00f3n de red. En cuanto a la comunicaci\u00f3n cooperativa, proponemos dos esquemas de codificaci\u00f3n dd (double differential) distribuida para resolver el problema de la p\u00e9rdida de prestaciones ante la aparici\u00f3n de cfo (carrier frequency offset) entre los nodos cooperadores y el nodo destino final. En cuanto a la codificaci\u00f3n de red, proponemos un algoritmo de codificaci\u00f3n adecuado para wsn (wireless sensor network) densas y multisalto, que consigue reducir la ber al realizar una codificaci\u00f3n distribuida mediante c\u00f3digos ldpc (low density parity check).<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Prestaciones de las redes ad hoc inal\u00e1mbricas: teor\u00eda a trav\u00e9s de capas<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Prestaciones de las redes ad hoc inal\u00e1mbricas: teor\u00eda a trav\u00e9s de capas <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Eduardo Morgado Reyes <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Rey juan carlos<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 14\/07\/2009<\/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>Antonio  Jose Caama\u00f1o Fernandez<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: Francisco javier Ramos lopez <\/li>\n<li>alfonso Cano pleite (vocal)<\/li>\n<li>matilde pilar S\u00e1nchez fernandez (vocal)<\/li>\n<li>Juan  Jos\u00e9 Murillo fuentes (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Eduardo Morgado Reyes T\u00edtulo de la tesis: prestaciones de las redes ad hoc inal\u00e1mbricas: teor\u00eda a trav\u00e9s [&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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