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Found 10 papers, 0 papers with code
Maximizing Spectrum Efficiency of Data-Carrying Reference Signals via Bayesian Optimization
Data-carrying reference signals are a type of reference signal (RS) constructed on the Grassmann manifold, which allows for simultaneous data transmission and channel estimation to achieve boosted spectral efficiency at high signal-to-noise ratios (SNRs).
Superimposed Pilot-Based OTFS -- Will it Work?
Orthogonal time frequency space (OTFS) modulation is a promising solution to handle doubly-selective fading, but its channel estimation is a nontrivial task in terms of maximizing spectral efficiency.
Covert Communications Without Pre-Sharing of Side Information and Channel Estimation Over Quasi-Static Fading Channels
We propose a new covert communication scheme that operates without pre-sharing side information and channel estimation, utilizing a Gaussian-distributed Grassmann constellation for noncoherent detection.
Joint Channel and Data Estimation for Multiuser Extremely Large-Scale MIMO Systems
The JCDE problem is solved by sequential expectation propagation (EP) algorithms, where the channel and data are alternately updated in an iterative manner.
Achieving Distributed MIMO Performance with Repeater-Assisted Cellular Massive MIMO
In what ways could cellular massive MIMO be improved?
Boosting Spectral Efficiency with Data-Carrying Reference Signals on the Grassmann Manifold
In wireless networks, frequent reference signal transmission for accurate channel reconstruction may reduce spectral efficiency.
Grant-Free Access via Bilinear Inference for Cell-Free MIMO with Low-Coherent Pilots
We propose a novel joint activity, channel, and data estimation (JACDE) scheme for cell-free multiple-input multiple-output (MIMO) systems compliant with fifth-generation (5G) new radio (NR) orthogonal frequency-division multiplexing (OFDM) signaling.
Full-Duplex MIMO Systems with Hardware Limitations and Imperfect Channel Estimation
We consider a bidirectional in-band full-duplex (FD) multiple-input multiple-output (MIMO) system subject to imperfect channel state information (CSI), hardware distortion, and limited analog cancellation capability as well as the self-interference (SI) power requirement at the receiver analog domain so as to avoid the saturation of low noise amplifier (LNA).
Discrete-Aware Matrix Completion via Proximal Gradient
We present a novel algorithm for the completion of low-rank matrices whose entries are limited to a finite discrete alphabet.
Robust Symbol Detection in Overloaded NOMA Systems
Simulation results show that the proposed art significantly outperforms both classic receivers, such as the LMMSE, and recent CS-based alternatives, such as the SOAV and the SCSR detectors.
