Walid Hachem

1.5k total citations
53 papers, 606 citations indexed

About

Walid Hachem is a scholar working on Statistics and Probability, Computer Networks and Communications and Electrical and Electronic Engineering. According to data from OpenAlex, Walid Hachem has authored 53 papers receiving a total of 606 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Statistics and Probability, 19 papers in Computer Networks and Communications and 19 papers in Electrical and Electronic Engineering. Recurrent topics in Walid Hachem's work include Random Matrices and Applications (25 papers), Wireless Communication Networks Research (12 papers) and Advanced Wireless Communication Techniques (11 papers). Walid Hachem is often cited by papers focused on Random Matrices and Applications (25 papers), Wireless Communication Networks Research (12 papers) and Advanced Wireless Communication Techniques (11 papers). Walid Hachem collaborates with scholars based in France, United States and India. Walid Hachem's co-authors include Jamal Najım, Philippe Loubaton, Romain Couillet, Pascal Bianchi, Philippe Ciblat, Pascal Vallet, Abla Kammoun, Xavier Mestre, David Renfrew and Arup Bose and has published in prestigious journals such as SHILAP Revista de lepidopterología, IEEE Transactions on Automatic Control and IEEE Transactions on Information Theory.

In The Last Decade

Walid Hachem

45 papers receiving 579 citations

Peers

Walid Hachem

EEE

CNC

Jamal Najım France

Guangming Pan Singapore

Brian Rider United States

Xingzhi Zhan China

Sueli I. R. Costa Brazil

Max H. M. Costa Brazil

Kenneth I. Gross United States

Randall Dougherty United States

J.K. Townsend United States

Sherman K. Stein United States

Jamal Najım France

Walid Hachem

331 ×1.2

EEE

340 ×1.4

CNC

386 ×1.6

160 ×1.4

97 ×1.3

Citations per year, relative to Walid Hachem Walid Hachem (= 1×) peers Jamal Najım

Countries citing papers authored by Walid Hachem

Since Specialization

Citations

This map shows the geographic impact of Walid Hachem's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Walid Hachem with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Walid Hachem more than expected).

Fields of papers citing papers by Walid Hachem

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Walid Hachem. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Walid Hachem. The network helps show where Walid Hachem may publish in the future.

Co-authorship network of co-authors of Walid Hachem

This figure shows the co-authorship network connecting the top 25 collaborators of Walid Hachem. A scholar is included among the top collaborators of Walid Hachem based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Walid Hachem. Walid Hachem is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hachem, Walid, et al.. (2024). Equilibria of large random Lotka–Volterra systems with vanishing species: a mathematical approach. Journal of Mathematical Biology. 89(6). 61–61. 2 indexed citations

Hachem, Walid. (2023). Approximate Message Passing for sparse matrices with application to the equilibria of large ecological Lotka–Volterra systems. Stochastic Processes and their Applications. 170. 104276–104276. 5 indexed citations

Bianchi, Pascal, et al.. (2022). Convergence of Constant Step Stochastic Gradient Descent for Non-Smooth Non-Convex Functions. Set-Valued and Variational Analysis. 30(3). 1117–1147. 14 indexed citations

Hachem, Walid, et al.. (2021). Non-Hermitian Random Matrices with a Variance Profile (II): Properties and Examples. Journal of Theoretical Probability. 35(4). 2343–2382.

Bianchi, Pascal, et al.. (2020). Stochastic optimization with momentum: convergence, fluctuations, and\n traps avoidance. arXiv (Cornell University). 5 indexed citations

Hachem, Walid, et al.. (2020). Non-Hermitian random matrices with a variance profile (II): properties\n and examples. arXiv (Cornell University). 2 indexed citations

Bose, Arup & Walid Hachem. (2018). Smallest singular value and limit eigenvalue distribution of a class of\n non-Hermitian random matrices with statistical application. arXiv (Cornell University). 9 indexed citations

Bianchi, Pascal, et al.. (2018). Constant step stochastic approximations involving differential inclusions: stability, long-run convergence and applications. Stochastics. 91(2). 288–320. 7 indexed citations

Bianchi, Pascal & Walid Hachem. (2016). Dynamical Behavior of a Stochastic Forward–Backward Algorithm Using Random Monotone Operators. Journal of Optimization Theory and Applications. 171(1). 90–120. 10 indexed citations

10.

Bianchi, Pascal & Walid Hachem. (2014). A primal-dual algorithm for distributed optimization. 4240–4245. 8 indexed citations

11.

Couillet, Romain, et al.. (2013). A new method for source detection, power estimation, and localization in large sensor networks under noise with unknown statistics. 3943–3946. 1 indexed citations

12.

Couillet, Romain, et al.. (2012). On the isolated eigenvalues of large Gram random matrices with a fixed rank deformation. arXiv (Cornell University). 6 indexed citations

13.

Hachem, Walid, Philippe Loubaton, Xavier Mestre, Jamal Najım, & Pascal Vallet. (2012). A subspace estimator for fixed rank perturbations of large random matrices. Journal of Multivariate Analysis. 114. 427–447. 24 indexed citations

14.

Kammoun, Abla, et al.. (2009). A Central Limit Theorem for the SINR at the LMMSE Estimator Output for Large-Dimensional Signals. IEEE Transactions on Information Theory. 55(11). 5048–5063. 33 indexed citations

15.

Fiorina, Jocelyn & Walid Hachem. (2006). Trade-off between repetition factor and frame length in Time-Hopping Impulse Radio Ultra Wide Band. 1. 457–460. 3 indexed citations

16.

Hachem, Walid, Philippe Loubaton, & Jamal Najım. (2005). Deterministic equivalents for certain functionals of large random matrices. HAL (Le Centre pour la Communication Scientifique Directe). 113 indexed citations

17.

Ciblat, Philippe, et al.. (2005). An OFDMA based modem for powerline communications over the low voltage distribution network. 42–46. 19 indexed citations

18.

Hachem, Walid, et al.. (2003). Asymptotic analysis of optimum and sub-optimum CDMA downlink MMSE receivers. 493–496 vol.1. 8 indexed citations

19.

Hachem, Walid, et al.. (2002). Asymptotic analysis of optimum and sub-optimum CDMA downlink MMSE receivers. HAL (Le Centre pour la Communication Scientifique Directe). 1 indexed citations

20.

Debbah, Mérouane, Walid Hachem, Philippe Loubaton, & M. de Courville. (2002). Asymptotic performance analysis for redundant block precoded OFDM systems with MMSE equalization. 389–392. 4 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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