Chapter 3
The DLL and Information Theory in Tactical Networks
Chapter 2 covered some important aspects of the physical layer, including signals, modulation/demodulation, probability of symbol error rate, and spectral modeling. Now that you have seen the challenges of the physical layer in tactical wireless communications, you are ready to move up the protocol stack, while looking at the fundamental communications and networking issue of information transfer. This includes source coding, channel coding, and the challenges of error control coding at the different layers of the tactical wireless networking protocol stack. While signal representation and channel coding belong to the data link layer (DLL), not all the topics in this chapter do, such as source coding, transport layer coding, and network coding.
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