Browsing by Author "Abdelkefi, Fatma"
Now showing items 1-4 of 4
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An efficient reduced complexity PAPR reduction approach for 3GPP LTE system
Sghaier, Mouna; Abdelkefi, Fatma; Omri, Aymen; Siala, Mohamed ( Institute of Electrical and Electronics Engineers Inc. , 2016 , Conference Paper)In wideband communication systems, Multi-Input Multi-Output Orthogonal Frequency Division Multiplexing (MIMO-OFDM) has been proposed as an efficient technique to enhance the link reliability and the spectral efficiency. ... -
On quantized compressed sensing with saturated measurements via convex optimization
Elleuch, Ines; Abdelkefi, Fatma; Siala, Mohamed; Hamila, Ridha; Al-Dhahir, Naofal ( European Signal Processing Conference, EUSIPCO , 2016 , Conference Paper)In this paper, we address the problem of sparse signal recovery, from multi-bit scalar quantized compressed sensing measurements, where the saturation issue is taken into account. We propose a convex optimization approach, ... -
On quantized compressed sensing with saturated measurements via greedy pursuit
Elleuch, Ines; Abdelkefi, Fatma; Siala, Mohamed; Hamila, Ridha; Al-Dhahir, Naofal ( IEEE , 2015 , Conference Paper)We consider the problem of signal recovery under a sparsity prior, from multi-bit quantized compressed measurements. Recently, it has been shown that allowing a small fraction of the quantized measurements to saturate, ... -
Quasi-sparsest solutions for quantized compressed sensing by graduated-non-convexity based reweighted ?1minimization
Elleuch, Ines; Abdelkefi, Fatma; Siala, Mohamed; Hamila, Ridha; Al-Dhahir, Naofal ( European Signal Processing Conference, EUSIPCO , 2016 , Conference Paper)In this paper, we address the problem of sparse signal recovery from scalar quantized compressed sensing measurements, via optimization. To compensate for compression losses due to dimensionality reduction and quantization, ...