Walid Hachem

1.4k total citations
28 papers, 642 citations indexed

About

Walid Hachem is a scholar working on Computer Networks and Communications, Electrical and Electronic Engineering and Artificial Intelligence. According to data from OpenAlex, Walid Hachem has authored 28 papers receiving a total of 642 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Computer Networks and Communications, 15 papers in Electrical and Electronic Engineering and 6 papers in Artificial Intelligence. Recurrent topics in Walid Hachem's work include Cooperative Communication and Network Coding (10 papers), Advanced MIMO Systems Optimization (10 papers) and Wireless Communication Networks Research (8 papers). Walid Hachem is often cited by papers focused on Cooperative Communication and Network Coding (10 papers), Advanced MIMO Systems Optimization (10 papers) and Wireless Communication Networks Research (8 papers). Walid Hachem collaborates with scholars based in France, Spain and Austria. Walid Hachem's co-authors include Pascal Bianchi, Philippe Ciblat, Franck Iutzeler, Philippe Loubaton, Jamal Najım, Gersende Fort, L. А. Pastur, M. de Courville, Mérouane Debbah and Nassar Ksairi and has published in prestigious journals such as IEEE Transactions on Information Theory, IEEE Transactions on Signal Processing and IEEE Transactions on Communications.

In The Last Decade

Walid Hachem

27 papers receiving 616 citations

Peers

Walid Hachem

CNC

EEE

Gonzalo Vazquez-Vilar Spain

Rausley A. A. de Souza Brazil

Jean-Marc Brossier France

S. Appadwedula United States

Mario Tanda Italy

Ramji Venkataramanan United States

Dominik Seethaler Austria

I. Korn Australia

M. de Courville France

G.K. Kaleh France

Gonzalo Vazquez-Vilar Spain

Walid Hachem

496 ×1.1

CNC

346 ×1.0

EEE

62 ×0.6

117 ×1.3

158 ×2.1

Citations per year, relative to Walid Hachem Walid Hachem (= 1×) peers Gonzalo Vazquez-Vilar

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

Bianchi, Pascal, Walid Hachem, & Franck Iutzeler. (2014). A Coordinate Descent Primal-Dual Algorithm and Application to\n Distributed Asynchronous Optimization. arXiv (Cornell University). 75 indexed citations

Bianchi, Pascal, Walid Hachem, & Franck Iutzeler. (2014). A stochastic primal-dual algorithm for distributed asynchronous composite optimization. 732–736. 9 indexed citations

Couillet, Romain, et al.. (2013). Statistical Inference in Large Antenna Arrays Under Unknown Noise Pattern. IEEE Transactions on Signal Processing. 61(22). 5633–5645. 26 indexed citations

Bianchi, Pascal, Gersende Fort, Walid Hachem, & Jérémie Jakubowicz. (2011). Convergence of a distributed parameter estimator for sensor networks with local averaging of the estimates. 3764–3767. 13 indexed citations

Hachem, Walid, Philippe Loubaton, Xavier Mestre, Jamal Najım, & Pascal Vallet. (2011). LARGE INFORMATION PLUS NOISE RANDOM MATRIX MODELS AND CONSISTENT SUBSPACE ESTIMATION IN LARGE SENSOR NETWORKS. Random Matrices Theory and Application. 1(2). 1150006–1150006. 23 indexed citations

Hachem, Walid, et al.. (2011). Randomized Isometric Linear-Dispersion Space-Time Block Coding for the DF Relay Channel. IEEE Transactions on Signal Processing. 60(1). 426–442.

Saadani, Ahmed, et al.. (2010). Performance of asynchronous two-relay two-hop wireless cooperative networks. IEEE Transactions on Wireless Communications. 9(3). 1086–1096. 7 indexed citations

Ksairi, Nassar, Pascal Bianchi, Philippe Ciblat, & Walid Hachem. (2009). Resource Allocation for Downlink Cellular OFDMA Systems—Part II: Practical Algorithms and Optimal Reuse Factor. IEEE Transactions on Signal Processing. 58(2). 735–749. 22 indexed citations

Ksairi, Nassar, Pascal Bianchi, Philippe Ciblat, & Walid Hachem. (2009). Resource Allocation for Downlink Cellular OFDMA Systems—Part I: Optimal Allocation. IEEE Transactions on Signal Processing. 58(2). 720–734. 40 indexed citations

10.

Kammoun, Abla, et al.. (2009). BER and Outage Probability Approximations for LMMSE Detectors on Correlated MIMO Channels. IEEE Transactions on Information Theory. 55(10). 4386–4397. 13 indexed citations

11.

Hachem, Walid, Éric Moulines, Jamal Najım, & François Roueff. (2009). On the error exponents for detecting randomly sampled noisy diffusion processes. 2169–2172. 1 indexed citations

12.

Saadani, Ahmed, et al.. (2009). Performance of Asynchronous Amplify-and-Forward Cooperative Relay Networks. 49. 1–6. 2 indexed citations

13.

Ksairi, Nassar, Pascal Bianchi, Philippe Ciblat, & Walid Hachem. (2008). Resource Allocation for Downlink Cellular OFDMA Systems: Part II - Asymptotic Analysis and Applications. arXiv (Cornell University). 2 indexed citations

14.

Hachem, Walid, Pascal Bianchi, & Philippe Ciblat. (2008). Outage Probability-Based Power and Time Optimization for Relay Networks. IEEE Transactions on Signal Processing. 57(2). 764–782. 17 indexed citations

15.

Hachem, Walid, et al.. (2008). A New Approach for Mutual Information Analysis of Large Dimensional Multi-Antenna Channels. IEEE Transactions on Information Theory. 54(9). 3987–4004. 118 indexed citations

16.

Sezginer, Serdar, Pascal Bianchi, & Walid Hachem. (2007). Asymptotic Cramér–Rao Bounds and Training Design for Uplink MIMO-OFDMA Systems With Frequency Offsets. IEEE Transactions on Signal Processing. 55(7). 3606–3622. 12 indexed citations

17.

Mouhouche, Belkacem, Philippe Loubaton, & Walid Hachem. (2007). Asymptotic Analysis of Reduced-Rank Chip-Level MMSE Equalizers in the Downlink of CDMA Systems. IEEE Transactions on Signal Processing. 55(6). 3048–3060. 6 indexed citations

18.

Hachem, Walid, et al.. (2007). Performance Analysis of an OFDMA Transmission System in a Multicell Environment. IEEE Transactions on Communications. 55(4). 740–751. 33 indexed citations

19.

Debbah, Mérouane, et al.. (2003). MMSE analysis of certain large isometric random precoded systems. IEEE Transactions on Information Theory. 49(5). 1293–1311. 71 indexed citations

20.

Hachem, Walid, François Desbouvries, & Philippe Loubaton. (2002). MIMO channel blind identification in the presence of spatially correlated noise. IEEE Transactions on Signal Processing. 50(3). 651–661. 10 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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