Search Results for author: Joan Palacios

Found 9 papers, 0 papers with code

Separable multidimensional orthogonal matching pursuit and its application to joint localization and communication at mmWave

no code implementations31 Oct 2022 Joan Palacios, Nuria González-Prelcic

Greedy sparse recovery has become a popular tool in many applications, although its complexity is still prohibitive when large sparsifying dictionaries or sensing matrices have to be exploited.

Position

Hybrid mmWave MIMO Systems under Hardware Impairments and Beam Squint: Channel Model and Dictionary Learning-aided Configuration

no code implementations17 Oct 2022 Hongxiang Xie, Joan Palacios, Nuria González-Prelcic

Low overhead channel estimation based on compressive sensing (CS) has been widely investigated for hybrid wideband millimeter wave (mmWave) multiple-input multiple-output (MIMO) systems.

Compressive Sensing Dictionary Learning

Multidimensional orthogonal matching pursuit: theory and application to high accuracy joint localization and communication at mmWave

no code implementations24 Aug 2022 Joan Palacios, Nuria González-Prelcic, Cristian Rusu

Greedy approaches in general, and orthogonal matching pursuit in particular, are the most commonly used sparse recovery techniques in a wide range of applications.

Low complexity joint position and channel estimation at millimeter wave based on multidimensional orthogonal matching pursuit

no code implementations7 Apr 2022 Joan Palacios, Nuria González-Prelcic, Cristian Rusu

Compressive approaches provide a means of effective channel high resolution channel estimates in millimeter wave MIMO systems, despite the use of analog and hybrid architectures.

Position

Joint Initial Access and Localization in Millimeter Wave Vehicular Networks: a Hybrid Model/Data Driven Approach

no code implementations4 Apr 2022 Yun Chen, Joan Palacios, Nuria González-Prelcic, Takayuki Shimizu, HongSheng Lu

High resolution compressive channel estimation provides information for vehicle localization when a hybrid mmWave MIMO system is considered.

Millimeter Wave Localization with Imperfect Training Data using Shallow Neural Networks

no code implementations9 Dec 2021 Anish Shastri, Joan Palacios, Paolo Casari

In this work, we propose a shallow neural network model to localize mmWave devices indoors.

A Dynamic Codebook Design for Analog Beamforming in MIMO LEO Satellite Communications

no code implementations16 Nov 2021 Joan Palacios, Nuria González-Prelcic, Carlos Mosquera, Takayuki Shimizu

Beamforming gain is a key ingredient in the performance of LEO satellite communication systems to be integrated into cellular networks.

A hybrid beamforming design for massive MIMO LEO satellite communications

no code implementations22 Apr 2021 Joan Palacios, Nuria Gonzalez-Prelcic, Carlos Mosquera, Takayuki Shimizu, Chang-Heng Wang

5G and future cellular networks intend to incorporate low earth orbit (LEO) satellite communication systems (SatCom) to solve the coverage and availability problems that cannot be addressed by satellite-based or ground-based infrastructure alone.

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