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Optimal Spatial Signal Design for mmWave Positioning Under Imperfect Synchronization
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DOI：10.1109/TVT.2022.3149974.png)
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Abstract
En 中文
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.
Keywords:
Signal design
Clocks
Synchronization
Location awareness
Covariance matrices
Uncertainty
Standards
Signal design
mmWave positioning
synchronization
Journal
IF:
7.1
Papers:
1.8W
Citations:
6.6W
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