# Henry Pfister

- Professor in the Department of Electrical and Computer Engineering
- Associate Professor of Mathematics (Secondary)

**External address:**140 Science Dr., 305 Gross Hall, Durham, NC 27708

**Internal office address:**90984, 315 Gross Hall, Durham, NC 27708

**Phone:**(919) 660-5288

Henry D. Pfister received his Ph.D. in electrical engineering in 2003 from the University of California, San Diego and is currently a professor in the Electrical and Computer Engineering Department of Duke University with a secondary appointment in Mathematics. Prior to that, he was a professor at Texas A&M University (2006-2014), a post-doctoral fellow at the École Polytechnique Fédérale de Lausanne (2005-2006), and a senior engineer at Qualcomm Corporate R&D in San Diego (2003-2004).

He received the NSF Career Award in 2008 and a Texas A&M ECE Department Outstanding Professor Award in 2010. He is a coauthor of the 2007 IEEE COMSOC best paper in Signal Processing and Coding for Data Storage and a coauthor of a 2016 Symposium on the Theory of Computing (STOC) best paper. He served as an Associate Editor for the IEEE Transactions on Information Theory (2013-2016) and a Distinguished Lecturer of the IEEE Information Theory Society (2015-2016).

His current research interests include information theory, communications, probabilistic graphical models, machine learning, and deep neural networks.

### Selected Grants

FET: Small: Efficient Inference Tools for Quantum Systems: Algorithms, Applications, and Analysis awarded by National Science Foundation (Principal Investigator). 2019 to 2022

FET: Small: Efficient Inference Tools for Quantum Systems: Algorithms, Applications, and Analysis awarded by National Science Foundation (Principal Investigator). 2019 to 2022

CIF: Small: Improving Quantum Computing and Classical Communication using Discrete Sets of Unitary Matrices awarded by National Science Foundation (Co Investigator). 2019 to 2022

HDR TRIPODS: Innovations in Data Science: Integrating Stochastic Modeling, Data Representation, and Algorithms awarded by National Science Foundation (Senior Investigator). 2019 to 2022

CIF: Small: Capacity via Symmetry awarded by National Science Foundation (Principal Investigator). 2017 to 2020

Collaborative Research: Advanced Coding Techniques for Next-Generation Optical Communications awarded by National Science Foundation (Principal Investigator). 2016 to 2019

CIF:Small: Design and Analysis of Spatially-Coupled Coding Systems awarded by Texas A&M University (Principal Investigator). 2015 to 2017

CIF: Small: Collaborative Research: Design and Analysis of Novel Compressed Sensing Algorithms via Connections with Coding Theory awarded by National Science Foundation (Principal Investigator). 2014 to 2016

Request for Support for U.S. Participants of the 2015 Workshop on Sensing and Analysis of High-Demensional Data awarded by National Science Foundation (Principal Investigator). 2015 to 2016

Carpi, Fabrizio, et al. “Reinforcement Learning for Channel Coding: Learned Bit-Flipping Decoding.” *2019 57th Annual Allerton Conference on Communication, Control, and Computing (Allerton)*, IEEE, Sept. 2019. *Crossref*, doi:10.1109/allerton.2019.8919799.
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Pfister, Henry D., and Rudiger L. Urbanke. “Near-Optimal Finite-Length Scaling for Polar Codes Over Large Alphabets.” *Ieee Transactions on Information Theory*, vol. 65, no. 9, Institute of Electrical and Electronics Engineers (IEEE), Sept. 2019, pp. 5643–55. *Crossref*, doi:10.1109/tit.2019.2915595.
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Rengaswamy, N., et al. “Unifying the Clifford hierarchy via symmetric matrices over rings.” *Physical Review A*, vol. 100, no. 2, Aug. 2019. *Scopus*, doi:10.1103/PhysRevA.100.022304.
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Lian, M., et al. “Learned Belief-Propagation Decoding with Simple Scaling and SNR Adaptation.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2019-July, July 2019, pp. 161–65. *Scopus*, doi:10.1109/ISIT.2019.8849419.
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Can, T., et al. “Kerdock Codes Determine Unitary 2-Designs.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2019-July, July 2019, pp. 2908–12. *Scopus*, doi:10.1109/ISIT.2019.8849504.
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Tal, I., et al. “Polar Codes for the Deletion Channel: Weak and Strong Polarization.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2019-July, July 2019, pp. 1362–66. *Scopus*, doi:10.1109/ISIT.2019.8849705.
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Reeves, G., and H. D. Pfister. “The Replica-Symmetric Prediction for Random Linear Estimation With Gaussian Matrices Is Exact.” *Ieee Transactions on Information Theory*, vol. 65, no. 4, Apr. 2019, pp. 2252–83. *Scopus*, doi:10.1109/TIT.2019.2891664.
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Yoo, I., et al. “Enhancing Capacity of Spatial Multiplexing Systems Using Reconfigurable Cavity-Backed Metasurface Antennas in Clustered MIMO Channels.” *Ieee Transactions on Communications*, vol. 67, no. 2, Feb. 2019, pp. 1070–84. *Scopus*, doi:10.1109/TCOMM.2018.2876899.
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Schmidt, Christian, et al. “Minimal sets to destroy the k-core in random networks..” *Physical Review. E*, vol. 99, no. 2–1, Feb. 2019. *Epmc*, doi:10.1103/physreve.99.022310.
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Sheikh, A., et al. “On Low-Complexity Decoding of Product Codes for High-Throughput Fiber-Optic Systems.” *International Symposium on Turbo Codes and Iterative Information Processing, Istc*, vol. 2018-December, Jan. 2019. *Scopus*, doi:10.1109/ISTC.2018.8625279.
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## Pages

Reeves, G., et al. “Mutual Information as a Function of Matrix SNR for Linear Gaussian Channels.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2018-June, 2018, pp. 1754–58. *Scopus*, doi:10.1109/ISIT.2018.8437326.
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Hager, C., and H. D. Pfister. “Nonlinear interference mitigation via deep neural networks.” *2018 Optical Fiber Communications Conference and Exposition, Ofc 2018 Proceedings*, 2018, pp. 1–3.

Sabag, O., et al. “A single-letter upper bound on the feedback capacity of unifilar finite-state channels.” *Ieee Transactions on Information Theory*, vol. 63, no. 3, 2017, pp. 1392–409. *Scopus*, doi:10.1109/TIT.2016.2636851.
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Sabag, O., et al. “Single-letter bounds on the feedback capacity of unifilar finite-state channels.” *2016 Ieee International Conference on the Science of Electrical Engineering, Icsee 2016*, 2017. *Scopus*, doi:10.1109/ICSEE.2016.7806200.
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Kumar, S., et al. “Beyond double transitivity: Capacity-achieving cyclic codes on erasure channels.” *2016 Ieee Information Theory Workshop, Itw 2016*, 2016, pp. 241–45. *Scopus*, doi:10.1109/ITW.2016.7606832.
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Hager, C., et al. “Density evolution for deterministic generalized product codes with higher-order modulation.” *International Symposium on Turbo Codes and Iterative Information Processing, Istc*, vol. 2016-October, 2016, pp. 236–40. *Scopus*, doi:10.1109/ISTC.2016.7593112.
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Sanatkar, M. R., and H. D. Pfister. “Increasing the rate of spatially-coupled codes via optimized irregular termination.” *International Symposium on Turbo Codes and Iterative Information Processing, Istc*, vol. 2016-October, 2016, pp. 31–35. *Scopus*, doi:10.1109/ISTC.2016.7593071.
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Reeves, G., and H. D. Pfister. “The replica-symmetric prediction for compressed sensing with Gaussian matrices is exact.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2016-August, 2016, pp. 665–69. *Scopus*, doi:10.1109/ISIT.2016.7541382.
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Hager, C., et al. “Deterministic and ensemble-based spatially-coupled product codes.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2016-August, 2016, pp. 2114–18. *Scopus*, doi:10.1109/ISIT.2016.7541672.
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Kumar, S., et al. “Reed-muller codes achieve capacity on the quantum erasure channel.” *Ieee International Symposium on Information Theory Proceedings*, vol. 2016-August, 2016, pp. 1750–54. *Scopus*, doi:10.1109/ISIT.2016.7541599.
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## Pages

Häger, C., et al. *Density evolution for deterministic generalized product codes on the binary erasure channel at high rates*. 1 July 2017. *Scopus*, doi:10.1109/TIT.2017.2689783.
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Kumar, Santhosh, et al. *A Proof of Threshold Saturation for Spatially-Coupled LDPC Codes on BMS Channels*. 2013.

Nguyen, Phong S., et al. *Spatially-Coupled Codes and Threshold Saturation on Intersymbol-Interference Channels*. 2011.

Pfister, Henry D. *The Capacity of Finite-State Channels in the High-Noise Regime*. 2010.

Kim, Byung-Hak, et al. *Message-Passing Inference on a Factor Graph for Collaborative Filtering*. 2010.

Kim, Byung-Hak, and Henry D. Pfister. *An Iterative Joint Linear-Programming Decoding of LDPC Codes and Finite-State Channels*. 2010.

Nguyen, Phong S., et al. *On Multiple Decoding Attempts for Reed-Solomon Codes*. 2010.

Zhang, Fan, and Henry D. Pfister. *On the Iterative Decoding of High-Rate LDPC Codes With Applications in Compressed Sensing*. 2009.

Pfister, Henry D., and Igal Sason. *Capacity-Achieving Ensembles of Accumulate-Repeat-Accumulate Codes for the Erasure Channel with Bounded Complexity*. 2005.

Pfister, Henry D., et al. *Bounds on the decoding complexity of punctured codes on graphs*. 2004.