A unified approach to sparse signal processing

F Marvasti, A Amini, F Haddadi… - EURASIP journal on …, 2012 - Springer
A unified view of the area of sparse signal processing is presented in tutorial form by
bringing together various fields in which the property of sparsity has been successfully …

Pilot design schemes for sparse channel estimation in OFDM systems

C Qi, G Yue, L Wu, Y Huang… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
In this paper, we consider the pilot design based on the mutual incoherence property (MIP)
for sparse channel estimation in orthogonal frequency-division multiplexing (OFDM) …

Novel compressed sensing-based channel estimation algorithm and near-optimal pilot placement scheme

Y Zhang, R Venkatesan, OA Dobre… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
This paper presents a novel recovery algorithm based on sparsity adaptive matching pursuit
(SaMP) and a new near-optimal pilot placement scheme, for compressed sensing (CS) …

Multihypothesis compressed video sensing technique

M Azghani, M Karimi, F Marvasti - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
In this paper, we present a compressive sampling and multihypothesis (MH) reconstruction
strategy for video sequences that has a rather simple encoder, while the decoding system is …

Compressive sensing-based pilot design for sparse channel estimation in OFDM systems

R Mohammadian, A Amini… - IEEE communications …, 2016 - ieeexplore.ieee.org
We consider the deterministic pilot design problem for sparse channel estimation in an
Orthogonal Frequency Division Multiplexing (OFDM) system. Our design is based on …

Sparse signal processing using iterative method with adaptive thresholding (IMAT)

F Marvasti, M Azghani, P Imani… - 2012 19th …, 2012 - ieeexplore.ieee.org
Classical sampling theorem states that by using an anti-aliased low-pass filter at the Nyquist
rate, one can transmit and retrieve the filtered signal. This approach, which has been used …

Joint pilot power & pattern design for compressive OFDM channel estimation

M Khosravi, S Mashhadi - IEEE Communications Letters, 2014 - ieeexplore.ieee.org
This letter investigates the deterministic design of pilot power and pattern for sparse channel
estimation in OFDM systems based on minimizing the coherence of the DFT sub-matrix. It …

Deterministic pilot design for sparse channel estimation in MISO/multi-user OFDM systems

R Mohammadian, A Amini… - IEEE Transactions on …, 2016 - ieeexplore.ieee.org
We study the pilot design problem for sparse channel estimation in OFDM systems where
multiple channels are estimated at a single antenna receiver. Such design is applicable to …

Sparse signal processing

M Azghani, F Marvasti - … Approximation and Sampling Theory: Festschrift in …, 2014 - Springer
Conventional sampling techniques are based on Shannon-Nyquist theory which states that
the required sampling rate for perfect recovery of a band-limited signal is at least twice its …

Fast fading channel estimation by Kalman filtering and CIR support tracking

Z Jellali, LN Atallah - IEEE Transactions on Broadcasting, 2017 - ieeexplore.ieee.org
Structured estimation of channel impulse response (CIR) is considered in orthogonal
frequency division multiplexing (OFDM) systems for which the channel exhibits a sparse …