CDMA (ALM1037S)

Written by: Newton C. Braga
Category: Banco de Informaciones - Almanaque

 

Es un acrónimo de Code Division Multiple Acces o Acceso múltiple por división de código,

Es una tecnología utilizada para la comunicación por radio.

CDMA se desarrolló por primera vez para sistemas de radiocomunicaciones militares.

Gastando poca energía, utiliza las frecuencias disponibles de manera muy eficiente, simplificando la planificación, ya que todos los equipos transmiten y reciben en la misma frecuencia.

Además, utiliza un sistema de código exclusivo que le permite recibir la señal deseada incluso en condiciones desfavorables.

Otra característica importante de CDMA es que es muy difícil interferir con una transmisión de radio que usa CDMA y también rastrear y escuchar esta transmisión clandestinamente.

En 1989, el ejército estadounidense lanzó la tecnología CDMA para aplicaciones comerciales.

Desde entonces, Qualcomm, Lucent, Motorola, Nec, Sansung y muchos otros han invertido en esta tecnología.

CDMA se utilizó en telefonía celular analógica.

¡En el sistema CDMA, todos los suscriptores transmiten y reciben información usando el mismo canal, al mismo tiempo!

A cada suscriptor se le asigna un código único. Para recibir información de un suscriptor específico, solo conociendo su código.

 

 

Buscador de Datasheets


N° de Componente 

Banco de Circuitos

J! InfoRequestSessionProfileQueries21
Settings18.879MBMemory Usage51.9msRequest Duration
Theme
Open Button Position
Hide Empty Tabs
Autoshow
Reset to defaults
Joomla! Version5.3.2
PHP Version8.3.23
Identityguest
Response200
Templatecassiopeia
Database
Server
mysql
Version
10.5.27-MariaDB
Collation
latin1_swedish_ci
Conn Collation
utf8mb4_general_ci
$_GET
[]
$_POST
[]
$_SESSION
array:1 [ "joomla" => "***redacted***" ]
$_COOKIE
[]
$_SERVER
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session
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array:21 [ "id" => 0 "name" => null "username" => null "email" => null "password" => "***r...
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  • afterInitialise (1.13MB) (4.52ms)
  • afterRoute (123.96KB) (1.2ms)
  • beforeRenderComponent com_content (100.9KB) (553μs)
  • Before Access::preloadComponents (all components) (33.13KB) (207μs)
  • After Access::preloadComponents (all components) (113.53KB) (813μs)
  • Before Access::preloadPermissions (com_content) (1.57KB) (9μs)
  • After Access::preloadPermissions (com_content) (16.24MB) (25.32ms)
  • Before Access::getAssetRules (id:353 name:com_content.article.10016) (514.65KB) (1.26ms)
  • After Access::getAssetRules (id:353 name:com_content.article.10016) (7.38KB) (82μs)
  • afterRenderComponent com_content (324.64KB) (8.55ms)
  • afterDispatch (2.25KB) (72μs)
  • beforeRenderRawModule mod_articles_category (Banco de Circuitos) (358.56KB) (2.39ms)
  • afterRenderRawModule mod_articles_category (Banco de Circuitos) (79.5KB) (493μs)
  • beforeRenderRawModule mod_finder (Busca_inteligente) (5.9KB) (102μs)
  • afterRenderRawModule mod_finder (Busca_inteligente) (54.63KB) (1.06ms)
  • beforeRenderModule mod_articles_category (Banco de Circuitos) (9.27KB) (689μs)
  • afterRenderModule mod_articles_category (Banco de Circuitos) (5.47KB) (69μs)
  • beforeRenderModule mod_finder (Busca_inteligente) (6.64KB) (244μs)
  • afterRenderModule mod_finder (Busca_inteligente) (4.44KB) (63μs)
  • afterRender (249.55KB) (3.77ms)
  • 1 x After Access::preloadPermissions (com_content) (16.24MB) (48.79%)
    25.32ms
    1 x afterRenderComponent com_content (324.64KB) (16.48%)
    8.55ms
    1 x afterInitialise (1.13MB) (8.72%)
    4.52ms
    1 x afterRender (249.55KB) (7.26%)
    3.77ms
    1 x beforeRenderRawModule mod_articles_category (Banco de Circuitos) (358.56KB) (4.61%)
    2.39ms
    1 x Before Access::getAssetRules (id:353 name:com_content.article.10016) (514.65KB) (2.42%)
    1.26ms
    1 x afterRoute (123.96KB) (2.3%)
    1.20ms
    1 x afterRenderRawModule mod_finder (Busca_inteligente) (54.63KB) (2.04%)
    1.06ms
    1 x After Access::preloadComponents (all components) (113.53KB) (1.57%)
    813μs
    1 x beforeRenderModule mod_articles_category (Banco de Circuitos) (9.27KB) (1.33%)
    689μs
    1 x beforeRenderComponent com_content (100.9KB) (1.07%)
    553μs
    1 x afterRenderRawModule mod_articles_category (Banco de Circuitos) (79.5KB) (0.95%)
    493μs
    1 x afterLoad (83.63KB) (0.6%)
    314μs
    1 x beforeRenderModule mod_finder (Busca_inteligente) (6.64KB) (0.47%)
    244μs
    1 x Before Access::preloadComponents (all components) (33.13KB) (0.4%)
    207μs
    1 x beforeRenderRawModule mod_finder (Busca_inteligente) (5.9KB) (0.2%)
    102μs
    1 x After Access::getAssetRules (id:353 name:com_content.article.10016) (7.38KB) (0.16%)
    82μs
    1 x afterDispatch (2.25KB) (0.14%)
    72μs
    1 x afterRenderModule mod_articles_category (Banco de Circuitos) (5.47KB) (0.13%)
    69μs
    1 x afterRenderModule mod_finder (Busca_inteligente) (4.44KB) (0.12%)
    63μs
    1 x Before Access::preloadPermissions (com_content) (1.57KB) (0.02%)
    9μs
21 statements were executed, 5 of which were duplicates, 16 unique11.87ms1.53MB
UniquesDuplicates 1Duplicates 2
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