Grid-Less Variational Bayesian Channel Estimation for Antenna Array Systems With Low Resolution ADCs

@article{Zhu2019GridLessVB,
  title={Grid-Less Variational Bayesian Channel Estimation for Antenna Array Systems With Low Resolution ADCs},
  author={Jiang Zhu and Chao-Kai Wen and Jun Tong and Chongbin Xu and Shi Jin},
  journal={IEEE Transactions on Wireless Communications},
  year={2019},
  volume={19},
  pages={1549-1562}
}
Employing low-resolution analog-to-digital converters (ADCs) coupled with large antenna arrays at the receivers has drawn considerable interests in the millimeter wave (mm-wave) system. Since mm-wave channels are sparse in angular dimensions, exploiting the structure could reduce the number of measurements while achieving acceptable performance at the same time. Motivated by the variational Bayesian line spectral estimation (VALSE) algorithm which treats the angles as random parameters, in… 

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