What are the origins of carrier frequency offsets and phase offsets?

Name the different frequency recovery algorithms and explain the basic ideas.

Name the different phase recovery algorithms and explain the basic ideas.

What is the purpose of a PLL and how does it work?

Which additional equalizer step can further improve the signal quality?

What is the fundamental idea of error correction? What are the drawbacks?

Give one definition for coding gain.

Classify briefly the different Generations of FEC (Forward Error Correction).