Near-Field Channel Reconstruction and User Localization for ELAA Systems

Zhizheng Lu, Yu Han, Shi Jin, Michail Matthaiou, Tony Q.S. Quek

研究成果: Conference contribution

4 引文 斯高帕斯(Scopus)

摘要

In this paper, we propose an efficient near-field channel reconstruction and user localization scheme for extremely large-scale antenna array (ELAA) systems. Due to the non-negligible near-field effect in ELAA systems, a more realistic near-field multipath channel model, which incorporates the unequal path loss and the phase deviations across antennas and models line-of-sight (LoS), reflection, and scattering, is considered. A subarray hybrid beamforming architecture is further employed to reduce the cost of using ELAA. Based on the sparsity of the near-field channel in the joint angle-distance domain, a near-field Newtonized orthogonal matching pursuit algorithm is proposed to estimate the multipath parameters. Reconstruction of the near-field channel and positioning of the user can be achieved based on the estimated parameters. Our numerical results verify that the reconstructed channel is very close to the real near-field channel, and the user localization has high accuracy whether a LoS component exists or not, validating the effectiveness and reliability of the proposed scheme.

原文English
主出版物標題2022 International Symposium on Wireless Communication Systems, ISWCS 2022
發行者VDE Verlag GmbH
ISBN(電子)9781665455442
DOIs
出版狀態Published - 2022
事件2022 International Symposium on Wireless Communication Systems, ISWCS 2022 - Hangzhou, China
持續時間: 2022 10月 192022 10月 22

出版系列

名字Proceedings of the International Symposium on Wireless Communication Systems
2022-October
ISSN(列印)2154-0217
ISSN(電子)2154-0225

Conference

Conference2022 International Symposium on Wireless Communication Systems, ISWCS 2022
國家/地區China
城市Hangzhou
期間22-10-1922-10-22

All Science Journal Classification (ASJC) codes

  • 電腦網路與通信
  • 電氣與電子工程
  • 通訊

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