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2438621
SISTEMA CMDA Y TDMA
Mind Map by
jennifer peñuela
, updated more than 1 year ago
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Created by
jennifer peñuela
almost 6 years ago
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TELEMATICA
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sistema cmda y tdma
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Resource summary
SISTEMA CMDA Y TDMA
1 CDMA es una division donde asigna a cada usuario un codigo diferente
1.1 cada codigo tranforma la señal de un usuario en una señal de banda ancha
2 el CMDA transmite multiples usuarios en un mismo tiempo
2.1 utilizando un codigo para cada uno de sus usuarios
3 el TDMA utiliza multiples usuarios utilizando una misma red portadora
3.1 cada usuario solo puede transmitir un solo intervalo de tiempo
4 ventajas del CMDA
4.1 mayor capacidad seguridad y privacidad control de nivel de potencia mayor covertura reduccion de ruido
5 en el TDMA se guardan los tiempos para evitar el traslape de informacion
5.1 es necesario sincronizar todos lo usuarios para evitar la interferencia
6 el TDMA Y CMDA los usuarios se comunican conla estacion base y a su vez con su red fija ya sea fibra o cable
6.1 el sistema de comunicacion esta muy condicionado por una interfaz radio electrica
6.1.1 comparten intervalos de tiempo y codigos etc...
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