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eess.SP2023
An ML-assisted OTFS vs. OFDM adaptable modem
I. Zakir Ahmed, Hamid R. Sadjadpour
The Orthogonal-Time-Frequency-Space (OTFS) signaling is known to be resilient to doubly-dispersive channels, which impacts high mobility scenarios. On the other hand, the Orthogona…
eess.SP2023
An information-theoretic branch-and-prune algorithm for discrete phase optimization of RIS in massive MIMO
I. Zakir Ahmed, Hamid R. Sadjadpour, Shahram Yousefi
In this paper, we consider passive RIS-assisted multi-user communication between wireless nodes to improve the blocked line-of-sight (LOS) link performance. The wireless nodes are…