Retraction Notice: A Spatial Delay Domain-Based Prony Channel Prediction Method for Massive MIMO LEO Communications (IEEE Systems Journal (2023) 17:3 (4137–4148) DOI: 10.1109/JSYST.2022.3223145)

Zhiqiang Liu, Di Zhang, Jingjing Guo, Theodoros A. Tsiftsis, Yuwei Su, Battulga Davaasambuu, Sahil Garg, and Takuro Sato IEEE Systems Journal 10.1109/JSYST.2022.3223145 Notice of Retraction Z. Liu et al., “A Spatial Delay Domain-Based Prony Channel Prediction Method for Massive MIMO LEO Communications,” in IEEE Systems Journal, vol. 17, no. 3, pp. 4137–4148, Sept. 2023. After careful and considered review of this article by senior publication officers at IEEE, this article was found not to meet IEEE’s publication standards. Concerns were raised after publication regarding IEEE’s authorship policy that resulted in a determination that, specifically, at the time of publication, co-author S. Garg was prohibited from publishing with IEEE. The other co-authors were unaware of this prohibition and did not consent to co-author a paper with a prohibited individual. When asked for a response, the authors did not agree with the retraction.