Maximum-SNR transmit antenna selection with two receive antennas is polynomially solvableMaximum-SNR transmit antenna selection with two receive antennas is polynomially solvable Πλήρης Δημοσίευση σε Συνέδριο Conference Full Paper 2015-11-102013enThe recent increased interest in massive multiple-input multiple-output systems, combined with the cost of the analog RF chains, necessitates the use of efficient antenna selection (AS) schemes. Capacity or SNR optimal AS has been considered to require an exhaustive search among all possible antenna subsets. In this work, we prove that the maximum-SNR transmit AS problem with two receive antennas is polynomially solvable and develop an algorithm that solves it with quartic complexity, independently of the number of selected antennas. Our method also applies to receive AS with two transmit antennas.http://creativecommons.org/licenses/by-nc-nd/4.0/ 4749-4753Intern. Conf. Acoust., Speech and Signal Proc Proc. IEEE - Intern. Conf. Acoust., Speech and Signal Proc Gkizeli Maria Karystinos Georgios Καρυστινος Γεωργιος Institute of Electrical and Electronics Engineers