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Block Phase Tracking Reference Signal (PTRS) Allocation for DFT-s-OFDM

2025-01-20 · Mostafa Ibrahim, Sabit Ekin, Yingming, Tsai, Ravikumar Pragada

This study introduces a Block Phase Tracking Reference Signal (PTRS) allocation approach for Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplexing (DFT-s-OFDM) systems to enhance phase noise tracking and compensation. Our proposed block allocation methodology leverages the concepts of multiresolution time-frequency tiling for more effective sampling, thereby mitigating aliasing effects and improving phase noise resilience. A key contribution of our approach is a novel modulation and demodulation scheme, incorporating a dedicated DFT-s-OFDM symbol, a modulator branch for block PTRS generation, and a dedicated demodulator for accurate phase noise estimation and correction.

📄 PDF Abstract BibTeX arXiv:2501.11780

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Noise Estimation

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