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20062019
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Personal profile

Research Statement

My main research activities lie within the wide area of statistical signal processing, with diverse multi-disciplinary applications to wireless communications and array processing, computational biology, and financial engineering, among others. With a focus on inference and estimation theory under high-dimensional settings (big data), my research is aimed at providing contemporary signal processing solutions and machine learning methods, and at enhancing our current understanding of complex biological systems.

At the core of my research, a common factor is the use of advanced concepts from high-dimensional statistics and random matrix theory to develop estimation and inference methods suited to the large-dimensional nature of contemporary data.

A substantial part of my past (and current) research has been focused on the design and analysis of wireless communication systems. With a special dedication to multi-antenna-based technologies, I have conducted research on channel models (fading and interference modelling), and on different topics including: massive MIMO, coordinated transmission (e.g., interference alignment, coordinated beamforming), spectrum sharing, and channel-aware scheduling. I am generally interested in research challenges posed by the ever-growing dimensionality (e.g., users, antennas) of forthcoming wireless networks, and particularly in the development of robust signal processing solutions.

 

Research Interests

- Statistical Signal Processing

- Machine Learning

- Random Matrix Theory

- Wireless Communications

- Statistical Channel Characterization

- Multipe-antenna systems (Massive MIMO)

 

Particulars

I received the M.Sc. and Ph.D. degrees in Telecommunication Technologies from University of Málaga (Spain) in 2008 and 2011, respectively. Between 2011 and 2013 I was with the Wireless Communications Group (WiCom), headed by Prof. Angel Lozano at the Department of Information and Communication Technologies, Universitat Pompeu Fabra (Barcelona, Spain), where I was a Postdoctoral Fellow and part-time Lecturer. Between 2014 and 2018, I was with the Department of Electronic and Computer Engineering at The Hong Kong University of Science and Technology (HKUST), first as a Visiting Scholar (2014-2016), and then as a Research Assistant Professor (2016-2018). In March 2018 I joined the Faculty of Engineering and Physical Sciences at Queen's University Belfast (QUB), where I am currently a Lecturer (Assistant Professor).

During the summers of 2010 and 2015, I held respective visiting appointments at University College London (UCL), Department of Electronic and Electrical Engineering, hosted by Prof. Kai-Kit Wong, and at Stanford University, Department of Statistics, hosted by Prof. Iain M. Johnstone.

 

Achievements

-IEEE Senior Member

-Best Ph.D. Thesis Award in Electrical and Computer Engeneering by the University of Malaga (Spain); Period: 2009-2012.

Fingerprint Dive into the research topics where David Morales is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

MIMO systems Engineering & Materials Science
Viruses Engineering & Materials Science
Antennas Engineering & Materials Science
Vaccines Engineering & Materials Science
Covariance matrix Engineering & Materials Science
Fading channels Engineering & Materials Science
Outages Engineering & Materials Science
Communication Engineering & Materials Science

Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Research Output 2006 2019

  • 28 Article
  • 16 Conference contribution
  • 3 Chapter
  • 2 Other contribution
8 Citations (Scopus)

Asymptotics of eigenstructure of sample correlation matrices for high-dimensional spiked models

Morales-Jimenez, D., Johnstone, I. M., McKay, M. R. & Yang, J., 16 May 2019, (Accepted) In : Statistica Sinica. p. 1-42 42 p.

Research output: Contribution to journalArticle

Correlation Matrix
High-dimensional
Eigenvalues and Eigenvectors
Spectral Properties
First-order

Extreme eigenvalue distributions of Jacobi ensembles: New exact representations, asymptotics and finite size corrections

Moreno-Pozas, L., Morales-Jimenez, D. & McKay, M. R., 01 Oct 2019, In : Nuclear Physics B. 947, 41 p., 114724.

Research output: Contribution to journalArticle

Open Access
File
Legendre functions
eigenvalues
determinants
matrices
scaling

New Approximation to Distribution of Positive RVs applied to Gaussian Quadratic Forms

Ramirez-Espinosa, P., Morales-Jimenez, D., Cortés, J. A., Paris, J. F. & Martos-Naya, E., 19 Apr 2019, In : IEEE Signal processing Letters. 26, 6, p. 923-927 5 p.

Research output: Contribution to journalArticle

Open Access
File
Quadratic form
Probability density function
Distribution functions
Cumulative distribution function
Approximation

Robust Linear Discriminant Analysis Using Tyler’s Estimator: Asymptotic Performance Characterization

Auguin, N., Morales-Jimenez, D. & McKay, M. R., 17 Apr 2019, IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP’19). Brighton, UK: IEEE

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Open Access
File
Discriminant analysis
Classifiers
Covariance matrix

Sub-dominant principal components inform new vaccine targets for HIV Gag

Ahmed, S. F., Quadeer, A. A., Morales-Jimenez, D. & McKay, M. R., 15 Oct 2019, In : Bioinformatics. 35, 20, p. 3884–3889 6 p.

Research output: Contribution to journalArticle

Vaccines
Vaccine
Principal Components
Viruses
Virus

Prizes

Best PhD Thesis Award in Electrical and Computer Engineering

David Morales (Recipient), 2014

Prize: Prize (including medals and awards)

engineering
thesis

IEEE Senior Member

David Morales (Recipient), Mar 2019

Prize: National/international honour

Activities 2007 2020

IEEE Technical Committee on Signal Processing for Communications and Networking (SPCOM) (External organisation)

David Morales (Board Member)
01 Jan 202001 Jan 2023

Activity: Membership typesMembership of peer review panel or committee

IEEE Signal Processing Society (External organisation)

David Morales (Advisor)
01 Jan 202001 Jan 2023

Activity: Membership typesMembership of peer review panel or committee

Pablo Rodriguez-Espinosa

David Morales (Host)
10 Sep 201810 Dec 2018

Activity: Hosting a visitor typesHosting an academic visitor

Energy efficiency in secure wireless communications systems for 5G

David Morales (Member), F. Javier Lopez Martinez (Recipient)
20182020

Activity: Other activity typesOther

F. Javier Lopez Martinez

David Morales (Host)
09 Jun 201808 Jul 2018

Activity: Hosting a visitor typesHosting an academic visitor