@conference{10902/31751,
year = {2023},
url = {https://hdl.handle.net/10902/31751},
abstract = {We address the problem of interference leakage (IL) minimization in the K-user multiple-input multiple-output (MIMO) interference channel (IC) assisted by a reconfigurable intelligent surface (RIS). We describe an iterative algorithm based on block coordinate descent to minimize the IL cost function. A reformulation of the problem provides a geometric interpretation and shows interesting connections with envelope precoding and phase-only zero-forcing beamforming problems. As a result of this analysis, we derive a set of necessary (but not sufficient) conditions for a phase-optimized RIS to be able to perfectly cancel the interference on the K-user MIMO IC.},
organization = {The work of I. Santamaria was supported under grant PID2019-104958RB-C43 (ADELE) funded by MCIN/AEI /10.13039/501100011033.The work of E. Jorswieck and J. Gutierrez was supported in part by the Federal Ministry of Education and Research (BMBF, Germany) as part of the 6G Research and Innovation Cluster 6G-RIC under Grants 16KISK031 and 16KISK026, respectively.},
publisher = {Institute of Electrical and Electronics Engineers, Inc.},
publisher = {IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Rhodes Island, Greece, 2023, 796-800},
title = {Interference leakage minimization in RIS-assisted MIMO interference channels},
author = {Santamaría Caballero, Luis Ignacio and Soleymani, Mohammad and Jorswieck, Eduard and Gutiérrez Terán, Jesús},
}