Blind Estimation of Sparse Simo Channels: Quadratic Vs. Linear Constraints
희소 Simo 채널 의 블라인드 평가:2 차 제약 과 선형 제약
Estimación ciega de canales Simo escasos: restricciones cuadráticas y lineales
Blind Estimation of sparse Simo Channel: Quadratic and Linear Constraints
оценка слепоты на редком канале Симо: вторичное ограничение и линейное ограничение
Mohamed Nait-Meziane ¹, Karim Abed-Meraim ¹, Zhipeng Zhao ²
¹ PRISME Laboratory, University of Orléans, Orléans, France
² Mathematical and Algorithmic Sciences Lab, France Research Center, Huawei Technologies Co. Ltd., Boulogne-Billancourt, France
2021 IEEE Statistical Signal Processing Workshop (SSP), 19 August 2021

Blind multichannel estimation is classically done considering one of two constraints on the channel coefficients: (i) a quadratic constraint (i.e., unit-norm), or (ii) a linear constraint (i.e., fixed value for a particular coefficient). These constraints serve to remove the indeterminacy of the solution inherent to this estimation problem.

In this paper, we investigate the adequacy of both constraints in the particular case of sparse channels. For this purpose, we first conduct a Cramér-Rao Bound (CRB)-based performance comparison, then we support the obtained results with simulation experiments using a subspace method. The obtained results indicate that, contrary to common practice, the linear constraint should be favored over the quadratic constraint for the blind estimation of sparse channels.
2021 IEEE Statistical Signal Processing Workshop (SSP)_1
2021 IEEE Statistical Signal Processing Workshop (SSP)_2
Reviews and Discussions
An overview on the principle of inkjet printing technique and its application in micro-display for augmented/virtual realities
Nonlinear optics with structured light
Femtosecond laser-induced periodic structures: mechanisms, techniques, and applications
Giant and light modifiable third-order optical nonlinearity in a free-standing h-BN film
New approach for the digital reconstruction of complex mine faults and its application in mining
p62/SQSTM1 Participates in the Innate Immune Response of Macrophages Against Candida albicans Infection
Configurable topological beam splitting via antichiral gyromagnetic photonic crystal
Single-molecule optoelectronic devices: physical mechanism and beyond
Functional nonlinear optical nanoparticles synthesized by laser ablation
The m6A methylation regulates gonadal sex differentiation in chicken embryo
A new species in the genus Synanthedon (Lepidoptera: Sesiidae) from China
A review on the forward osmosis applications and fouling control strategies for wastewater treatment

Previous Article                                Next Article
Copyright © Hot Paper