179 citations · 274 across the 13 of their papers we have counts for
4 papers · 2 filters
Lossless Size Reduction for Integer Least Squares with Application to Sphere Decoding
Mohammad Neinavaie, Mostafa Derakhtian, Sergiy A. Vorobyov
Minimum achievable complexity (MAC) for a maximum likelihood (ML) performance-achieving detection algorithm is derived. Using the derived MAC, we prove that the conventional sphere…
Non-Iterative Subspace-Based DOA Estimation in the Presence of Nonuniform Noise
M. Esfandiari, S. A. Vorobyov, S. Aliban +1
The uniform white noise assumption is one of the basic assumptions in most of the existing directional-of-arrival (DOA) estimation methods. In many applications, however, the non-u…
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…
Modelling Graph Errors: Towards Robust Graph Signal Processing
Jari Miettinen, Sergiy A. Vorobyov, Esa Ollila
The first step for any graph signal processing (GSP) procedure is to learn the graph signal representation, i.e., to capture the dependence structure of the data into an adjacency…