Ali Rezaei Abolfazl Falahati Shayan Zargari Energy Efficient Multi-Way Massive Mimo AF Relaying with Imperfect CSI and Optimal Power Allocation. 1681-1702 2023 October 132 Wirel. Pers. Commun. 3 https://doi.org/10.1007/s11277-023-10615-w db/journals/wpc/wpc132.html#RezaeiFZ23