Chapter 9: OTFS Performance Analysis

Learning Objectives

• Compute pairwise error probability (PEP) and identify the diversity order
• Prove that OTFS achieves diversity order $P$ (number of resolvable DD paths)
• Derive uncoded BER asymptotes and validate via Monte Carlo
• Understand the diversity-multiplexing tradeoff (DMT) for OTFS
• Quantify the OTFS-vs-OFDM performance gap at high mobility