Chapter 7: Coded Caching over Fading Channels

Learning Objectives

• Model the cache-aided broadcast channel over fading channels with coherence time $T_c$
• Quantify how CSIT quality affects the DoF: full, delayed, and no-CSIT regimes
• Derive the effective DoF $t + L(1 - L/T_c)$ accounting for pilot overhead
• Understand coded caching as a form of blind interference management in no-CSIT regimes
• Analyze outage-limited rate for cache-aided fading systems
• Appreciate why cache-aided designs are CSIT-economical compared to pure MIMO