SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
The whole process of modulation and encapsulation takes place at different layers
as shown in Figure. The modulation takes place in the physical layer. The
encapsulation is performed in the MPEG transmission layer and the convergence
layer.
Figure 67- Modulation and Encapsulation Layered Model
The IP receiver supports IP decapsulation from MPEG TS frames or from DVB-S2
baseband frames. This is done by first de-packing these fixed-size frames (MPEG
TS or DVB-S2 BBF) into variable-sized MPE packets and subsequently
decapsulating into IP packets. This is illustrated in Figure 68.
Figure 68- Demodulation, Deframing and Decapsulation
To Next Page
Loading...
