Joint channel estimation and data detection in MIMO-OFDM systems: A sparse Bayesian learning approach

R Prasad, CR Murthy, BD Rao - IEEE Transactions on signal …, 2015 - ieeexplore.ieee.org
The impulse response of wireless channels between the Nt transmit and Nr receive
antennas of a MIMO-OFDM system are group approximately sparse (ga-sparse), ie, the NtNr …

Joint approximately sparse channel estimation and data detection in OFDM systems using sparse Bayesian learning

R Prasad, CR Murthy, BD Rao - IEEE Transactions on Signal …, 2014 - ieeexplore.ieee.org
It is well known that the impulse response of a wideband wireless channel is approximately
sparse, in the sense that it has a small number of significant components relative to the …

A message-passing receiver for BICM-OFDM over unknown clustered-sparse channels

P Schniter - IEEE Journal of Selected Topics in Signal …, 2011 - ieeexplore.ieee.org
We propose a factor-graph-based approach to joint channel-estimation-and-decoding
(JCED) of bit-interleaved coded orthogonal frequency division multiplexing (BICM-OFDM). In …

A factor graph approach to joint OFDM channel estimation and decoding in impulsive noise environments

M Nassar, P Schniter, BL Evans - IEEE Transactions on Signal …, 2013 - ieeexplore.ieee.org
We propose a novel receiver for orthogonal frequency division multiplexing (OFDM)
transmissions in impulsive noise environments. Impulsive noise arises in many modern …

Joint channel-estimation/decoding with frequency-selective channels and few-bit ADCs

P Sun, Z Wang, RW Heather… - IEEE Transactions on …, 2018 - ieeexplore.ieee.org
We propose a fast and near-optimal approach to joint channel-estimation, equalization, and
decoding of coded single-carrier (SC) transmissions over frequency-selective channels with …

Balancing Application Relevant and Sparsity Revealing Excitation in Input Design

J Parsa, CR Rojas… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
The maximum absolute correlation between regressors, which is called mutual coherence,
plays an essential role in sparse estimation. A regressor matrix whose columns are highly …

Coherence-based Input Design for Sparse System Identification

J Parsa, CR Rojas, H Hjalmarsson - arXiv preprint arXiv:2402.06048, 2024 - arxiv.org
The maximum absolute correlation between regressors, which is called mutual coherence,
plays an essential role in sparse estimation. A regressor matrix whose columns are highly …

Belief-propagation-based joint channel estimation and decoding for spectrally efficient communication over unknown sparse channels

P Schniter - Physical Communication, 2012 - Elsevier
We consider spectrally-efficient communication over a Rayleigh N-block-fading channel with
a K-sparse L-length discrete-time impulse response (for 0< K< L< N), where neither the …

[PDF][PDF] 高阶QAM 调制下OFDM 的载波与采样频偏联合纠正

刘田, 杨琳, 邓凯, 唐友喜, 张嘉岷 - 电子学报, 2023 - ejournal.org.cn
采用高阶QAM (Quadrature Amplitude Modulation) 调制的正交频分复用(OFDM, Orthogonal
Frequency-Division Multiplexing) 系统, 相对于低阶调制来说, 密集的星座点分布更容易受到 …

Joint estimation and decoding for sparse channels via relaxed belief propagation

P Schniter - 2010 Conference Record of the Forty Fourth …, 2010 - ieeexplore.ieee.org
We consider the problem of communicating efficiently over an N-block Rayleigh-fading
channel with a K-sparse L-length discrete-time impulse response (with 0<; K<; L<; N), where …