{"id":2124,"date":"2016-11-09T10:21:15","date_gmt":"2016-11-09T15:21:15","guid":{"rendered":"http:\/\/blog.espol.edu.ec\/estg1003\/?p=2124"},"modified":"2026-04-04T10:48:14","modified_gmt":"2026-04-04T15:48:14","slug":"valor-esperado-pmf-ejercicio","status":"publish","type":"post","link":"https:\/\/blog.espol.edu.ec\/algoritmos101\/stp-u01eva\/valor-esperado-pmf-ejercicio\/","title":{"rendered":"Valor Esperado E[x] a partir de pmf - Ejercicio"},"content":{"rendered":"\n<p><strong>Referencia<\/strong>: <a href=\"http:\/\/blog.espol.edu.ec\/girni\/lorawan-descriptor-estadistico-de-un-punto\/\">LoRaWan \u2013 Descriptor estad\u00edstico de un punto en Girni<\/a>,<\/p>\n\n\n\n<p>El indicador de fuerza de la se\u00f1al recibida (RSSI) para un dispositivo a una distancia desde el gateway es un valor entero que se encuentra alrededor el <strong>valor esperado<\/strong> o media. Las condiciones del ambiente generan un componente aleatorio que se muestra en la figura.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"http:\/\/blog.espol.edu.ec\/girni\/files\/2021\/10\/serie_m_LOS22.png\" alt=\"\" \/><\/figure>\n\n\n\n<p>Las mediciones se pueden obtener para el enlace de subida (dispositivo a gateway) o enlace de bajada (gateway a dispositivo). A partir de los valores se pueden obtener la pmf del enlace de subida o de bajada<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" src=\"http:\/\/blog.espol.edu.ec\/girni\/files\/2021\/10\/pmf_LOS22.png\" alt=\"\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Ejercicio<\/h3>\n\n\n\n<p>A partir de los datos de los datos obtenidos para un punto con ubicaci\u00f3n&nbsp; etiquetada LOS04, calcular el <strong>valor esperado<\/strong> para los enlaces de <strong>subida<\/strong> (UP) y de <strong>bajada<\/strong> (Down) a partir de los siguientes datos, presentados en forma de un diccionario de Python:<\/p>\n\n\n\n<pre class=\"wp-block-code alignwide\"><code>{<span style=\"color: #008000\">\"pmf\"<\/span>:\n {<span style=\"color: #008000\">\"pmf_down\"<\/span>:\n  {<span style=\"color: #008000\">\"intervalo\"<\/span>:&#091;-70,-69,-68,-67,-66,-65,-64],\n   <span style=\"color: #008000\">\"freq_relativa\"<\/span>:&#091;0.036101083,0.1371841155,0.1732851986,0.1624548736,0.2707581227,0.202166065,0.0180505415]\n   },\n  <span style=\"color: #008000\">\"pmf_up\"<\/span>:\n  {<span style=\"color: #008000\">\"intervalo\"<\/span>:&#091;-83,-82,-81,-80,-79,-78,-77,-76,-75,-74,-73,-72,-71,-70,-69,-68,-67,-66,-65,-64,-63,-62,-61,-60,-59,-58,-57],\n   <span style=\"color: #008000\">\"freq_relativa\"<\/span>:&#091;0.036101083,0.0,0.0252707581,0.0,0.0072202166,0.0,0.1010830325,0.0036101083,0.1083032491,0.0,0.1227436823,0.0,0.0433212996,0.0324909747,0.0180505415,0.0252707581,0.0685920578,0.1335740072,0.0288808664,0.0,0.1046931408,0.1046931408,0.0180505415,0.0072202166,0.0072202166,0.0,0.0036101083]\n   }\n  },\n <span style=\"color: #008000\">\"dispositivo\"<\/span>:{<span style=\"color: #008000\">\"pmf_down\"<\/span>:<span style=\"color: #008000\">\"cc24\"<\/span>,<span style=\"color: #008000\">\"pmf_up\"<\/span>:<span style=\"color: #008000\">\"cc24\"<\/span>}\n }\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Referencia: LoRaWan \u2013 Descriptor estad\u00edstico de un punto en Girni, El indicador de fuerza de la se\u00f1al recibida (RSSI) para un dispositivo a una distancia desde el gateway es un valor entero que se encuentra alrededor el valor esperado o media. Las condiciones del ambiente generan un componente aleatorio que se muestra en la figura. [&hellip;]<\/p>\n","protected":false},"author":8043,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"wp-custom-template-entrada-stp-unidades","format":"standard","meta":{"footnotes":""},"categories":[213],"tags":[],"class_list":["post-2124","post","type-post","status-publish","format-standard","hentry","category-stp-u01eva"],"_links":{"self":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/2124","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/users\/8043"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/comments?post=2124"}],"version-history":[{"count":1,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/2124\/revisions"}],"predecessor-version":[{"id":22111,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/posts\/2124\/revisions\/22111"}],"wp:attachment":[{"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/media?parent=2124"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/categories?post=2124"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.espol.edu.ec\/algoritmos101\/wp-json\/wp\/v2\/tags?post=2124"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}