11 citations · 13 across the 7 of their papers we have counts for
3 papers · 1 filter
On the Spectral Efficiency for Massive MIMO Systems With Imperfect Spacial Covariance Information
A. K. Kocharlakota, K. Upadhya, S. A. Vorobyov
This paper studies the impact of imperfect channel covariance information on the uplink (UL) and downlink (DL) spectral efficiencies (SEs) of a time-division duplexed (TDD) massive…
Joint Detection and Localization of an Unknown Number of Sources Using Algebraic Structure of the Noise Subspace
Matthew W. Morency, Sergiy A. Vorobyov, Geert Leus
Source localization and spectral estimation are among the most fundamental problems in statistical and array signal processing. Methods which rely on the orthogonality of the signa…
Covariance Matrix Estimation for Massive MIMO
Karthik Upadhya, Sergiy A. Vorobyov
We propose a novel pilot structure for covariance matrix estimation in massive multiple-input multiple-output (MIMO) systems in which each user transmits two pilot sequences, with…