MULTIPLEXING

MULTIPLEXING

1. type

   • frequency-division multiplexing (FDM)
     • analog hierarchy
     • FDM application
   • wave-division multiplexing (WDM)
     • use the high data rate capability of fiber optic cable
   • time-division multiplexing (TDM)
     • synchronous TDM
       • Frame rate = Channel rate / Multiplexed bit
       • Frame duration = 1 / Frame rate
       • Bit rate = Frame rate x No. of bits in a frame
       • Bit rate = 1 / Bit rate

2. data rate management

   • multilevel multiplexing
   • multi-slot allocation
   • pulse stuffing