Part 5: Practical Aspects and Open Problems

Chapter 18: Open Problems

Advanced~200 min

Learning Objectives

  • Characterize the frequency-selective phase response of realistic RIS hardware
  • Analyze RIS channel aging and its impact on control-loop design
  • Assess the control-overhead-vs-performance tradeoff for large RIS
  • Describe the standardization trajectory (ETSI, 3GPP, ITU)
  • Identify fundamental capacity limits of RIS-aided channels

Sections

Prerequisites & Notation
nextSpecial
Wideband RIS: Frequency-Selective Phase Response
RIS Channel Aging and Control-Loop Design
The Path to Standardization
Fundamental Capacity Limits of RIS-Aided Channels
Chapter Summary
Special
Exercises
References & Further Reading
Special

Prerequisites

Full book (Chapters 1–17)Communication over frequency-selective channels (Telecom Ch 13)OFDM and wideband signaling (Telecom Ch 14)Information-theoretic capacity (ITA Ch 9–10)

💬 Discussion

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