@ARTICLE {31733,
author={B.  Hassan and M.  baig and H.  Asif and S.M. Mumtaz and S.  Muhaidat},
doi={10.1109/JSYST.2021.3111284},
journal={IEEE Systems Journal},
title={A Survey of FDD-Based Channel Estimation Schemes with Coordinated Multipoint},
year={2021},
month={October},
volume={4},
number={7},
pages={1-11},
ISSN={1932-8184}
}