3 papers
eess.SP2025
Computationally Efficient Neural Receivers via Axial Self-Attention
SaiKrishna Saketh Yellapragada, Atchutaram K. Kocharlakota, Mário Costa +2
Deep learning-based neural receivers offer promising physical-layer solutions for next-generation wireless systems. We propose an axial self-attention transformer neural receiver t…
cs.LG2024
Pilot Contamination Aware Transformer for Downlink Power Control in Cell-Free Massive MIMO Networks
Atchutaram K. Kocharlakota, Sergiy A. Vorobyov, Robert W. Heath
Learning-based downlink power control in cell-free massive multiple-input multiple-output (CFmMIMO) systems offers a promising alternative to conventional iterative optimization al…
cs.IT2019
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…