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Impairments-Aware Receiver Design for IRS-Aided Multi-cell Massive MIMO Systems With Channel Aging and Non-Ideal Hardware
For this system, we analyze the distortion due to hardware impairments, and the effect of channel aging, and propose a novel distortion-and-aging-aware MMSE (DAA-MMSE) receiver that not only provides a higher spectral efficiency (SE) than conventional maximal ratio and distortion-unaware MMSE (DU-MMSE) receivers, but also reduces the pilot overhead.
Variational Learning Algorithms For Channel Estimation in RIS-assisted mmWave Systems
We next design the factorized mean field-based algorithm based on the prior we propose.
OTFS Channel Estimation And Data Detection Designs With Superimposed Pilots
This work proposes a superimposed pilot (SP)-based channel estimation and data detection framework for orthogonal time-frequency space (OTFS) scheme, wherein low-powered pilots are superimposed on to data symbols in the delay-Doppler domain.
Full-Duplex Cell-Free mMIMO Systems: Analysis and Decentralized Optimization
Cell-free (CF) massive multiple-input-multiple-output (mMIMO) deployments are usually investigated with half-duplex nodes and high-capacity fronthaul links.
FD Cell-Free mMIMO: Analysis and Optimization
Cell-free (CF) massive multiple-input-multiple-output (mMIMO) deployments are usually investigated with half-duplex nodes and high-capacity fronthaul links.
