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arXiv · 2105.07664

Optimal Spatial Signal Design for mmWave Positioning under Imperfect Synchronization

Musa Furkan Keskin·Fan Jiang·Florent Munier·Gonzalo Seco-Granados·Henk Wymeersch
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Abstract

We consider the problem of spatial signal design for multipath-assisted mmWave positioning under limited prior knowledge on the user's location and clock bias. We propose an optimal robust design and, based on the low-dimensional precoder structure under perfect prior knowledge, a codebook-based heuristic design with optimized beam power allocation. Through numerical results, we characterize different position-error-bound (PEB) regimes with respect to clock bias uncertainty and show that the proposed low-complexity codebook-based designs outperform the conventional directional beam codebook and achieve near-optimal PEB performance for both analog and digital architectures.

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Musa Furkan Keskin, Fan Jiang, Florent Munier, Gonzalo Seco-Granados, Henk Wymeersch. 2021-05-17. Optimal Spatial Signal Design for mmWave Positioning under Imperfect Synchronization. https://arxiv.org/abs/2105.07664

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