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arXiv · 2501.11780

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

Mostafa Ibrahim·Sabit Ekin·Yingming·Tsai·Ravikumar Pragada
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Abstract

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.

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Mostafa Ibrahim, Sabit Ekin, Yingming, Tsai, Ravikumar Pragada. 2025-01-20. Block Phase Tracking Reference Signal (PTRS) Allocation for DFT-s-OFDM. https://arxiv.org/abs/2501.11780

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