Chapter 9: Multi-Server Coded Caching

Learning Objectives

• Model multi-server coded caching: multiple transmitters, shared users, cooperative delivery
• Derive the multi-server MAN scheme and its rate under full server cooperation
• Distinguish shared-cache (users-per-cache) from dedicated-cache (per-user-cache) models
• Analyze multi-server DoF: $\mathrm{DoF} = t + S L$ under cooperative MIMO-BC
• Understand load balancing across servers and its effect on delivery rate
• Relate multi-server coded caching to cell-free massive MIMO and cooperative networks