A Novel Cross-band CSI Prediction Scheme for Multi-band Fingerprint based Localization

Yuan Ruihao, Huang Kaixuan, Zhang Shunqing
5/6/2024
cs.NIcs.AI

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Abstract

Because of the advantages of computation complexity compared with traditional localization algorithms, fingerprint based localization is getting increasing demand. Expanding the fingerprint database from the frequency domain by channel reconstruction can improve localization accuracy. However, in a mobility environment, the channel reconstruction accuracy is limited by the time-varying parameters. In this paper, we proposed a system to extract the time-varying parameters based on space-alternating generalized expectation maximization (SAGE) algorithm, then used variational auto-encoder (VAE) to reconstruct the channel state information on another channel. The proposed scheme is tested on the data generated by the deep-MIMO channel model. Mathematical analysis for the viability of our system is also shown in this paper.

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Cite this paper

@article{ruihao2024novel,
  title  = {A Novel Cross-band CSI Prediction Scheme for Multi-band Fingerprint based Localization},
  author = {Yuan Ruihao and Huang Kaixuan and Zhang Shunqing},
  year   = {2024},
  eprint = {2405.03842},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2405.03842v1}
}

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