Menu

Wenji Wu

wenjiwu 2023 6916 600px
Wenji Wu
Networking Research Engineer

An expert in both quantum and classical networks, Dr. Wenji Wu is a network research engineer in Lawrence Berkeley National Laboratory's Scientific Networking Division, where he works on quantum networks, high-speed networking, and distributed systems for QUANT-NET and for ESnet's Testbeds & Prototypes group.

Dr. Wu served on the organizing committee for the first workshop on quantum network engineering (2025), and the Optical Incubator on Quantum Network Systems Research (2025). He also served as guest editor for Nature Quantum Information, Collection: Towards Large-scale quantum networks, as a member of the technical program committee for QCE25, QCNC 2025, QuNAP 2025, and QuNet’25, and as reviewer for Computer Networks, IEEE Journal of Selected Areas in Communications.

He is currently working on the QUANT-NET project, which aims to build a three-node quantum network testbed in Berkeley area. His roles in the project are (1) quantum network architecture and protocol stack research and development and (2) quantum network real-time control system research and development.

Dr. Wu was the PI on two DOE network research projects, the MDTM project and the BigData Express project. These two projects are targeted at providing schedulable, predictable, and high-performance data transfer service for DOE’s large-scale science computing facilities and their collaborators.

Dr. Wu earned his Ph.D. in computer engineering from University of Arizona. 

Most Recent Papers

Schon D, Umesh P, Cheah YW, Yu SY, Kissel E, Valivarthi R, Saglamyurek E, Ramakrishnan L, Wu W, Sipahigil A, Spiropulu M. The QUANT-NET testbed development and preliminary results. In2024 IEEE International Conference on Quantum Computing and Engineering (QCE) 2024 Sep 15 (Vol. 1, pp. 1799-1808). IEEE.

Yu, S.Y., Perego, E., Phillips, J., Cheah, Y.W., Umesh, P., Gao, G., Liu, J., Kissel, E., Bregar, M., Sun, K. and Wu, Q., 2025, August. A two-level control framework for quantum networks. In 2025 IEEE International Conference on Quantum Computing and Engineering (QCE) (Vol. 1, pp. 1302-1311). IEEE.

Yu, S.Y., Zhang, L., Kissel, E., Wu, W. and Monga, I., 2025, September. An extensible control plane software architecture for quantum networking research. In Proceedings of the 2nd Workshop on Quantum Networks and Distributed Quantum Computing (pp. 35-41).

Chan, C.H., Jain, C., Kissel, E., Wu, W., Barnes, E., Economou, S.E. and Monga, I., 2025. Theoretical Analysis and Simulations of Memory-based and All-photonic Quantum Repeaters and Networks. arXiv preprint arXiv:2512.23111.

Chan, C.H., Jain, C., Kissel, E., Wu, W., Barnes, E., Economou, S.E. and Monga, I., 2025, September. Modeling and Simulation of All-photonic Quantum Repeaters and Networks. In Proceedings of the 2nd Workshop on Quantum Networks and Distributed Quantum Computing (pp. 28-34).

Jain, C., Chan, C.H., Kissel, E., Wu, W. and Monga, I., 2025, September. Modeling and Simulation of Trapped-ion Quantum Repeaters and Networks. In Proceedings of the 2nd Workshop on Quantum Networks and Distributed Quantum Computing (pp. 1-7).

Chan, C.H., Jain, C., Kissel, E., Wu, W., Barnes, E., Economou, S.E. and Monga, I., 2025, August. A Comparative Study of All-Photonic and Memory-Based Quantum Repeaters and Networks. In 2025 IEEE International Conference on Quantum Computing and Engineering (QCE) (Vol. 1, pp. 873-884). IEEE.

Yin, Y., Li, X., Schon, D., Chen, Z., Cheah, Y.W., Saglamyurek, E., Wu, W., Häffner, H. and Monga, I., 2025, March. Experimental Test of Bell-state Measurement for Narrow-band Ion-photon Interfaces in the QUANT-NET Testbed. In Optical Fiber Communication Conference (pp. M4E-4). Optica Publishing Group. 

Journal Articles

Chan, C.H., Jain, C., Kissel, E., Wu, W., Barnes, E., Economou, S.E. and Monga, I., “Theoretical Analysis and Simulations of Memory-based and All-photonic Quantum Repeaters and Networks”, arXiv, December 28, 2025,

Syed Asif Raza, Wenji Wu, Qiming Lu, Liang Zhang, Sajith Sasidharan, Phil DeMar, Chin Guok, John Macauley, Eric Pouyoul, Jin Kim, Seo-Young Noh, “AmoebaNet: An SDN-enabled network service for big data science”, Journal of Network and Computer Applications, Elsevier, October 1, 2018, 119:70-82,

Liang Zhang, Wenji Wu, Phil DeMar, “mdtmFTP and its evaluation on ESNET SDN testbed”, Future Generation Computer Systems, Elsevier, February 1, 2018, 79:199-204,

Wenji Wu, Phil DeMar, Matt Crawford, “A transport-friendly NIC for multicore/multiprocessor systems”, IEEE Transactions on Parallel and Distributed Systems, July 14, 2011, 23:607-615,

Wenji Wu, Phil DeMar, Matt Crawford, “Why can some advanced Ethernet NICs cause packet reordering?”, IEEE Communications Letter, February 1, 2011, 15:253-255,

Wenji Wu, Phil DeMar, Matt Crawford, “Sorting reordered packets with interrupt coalescing”, Computer Networks, Elsevier, October 12, 2009, 53:2646-2662,

Wenji Wu,Matt Crawford,Mark Bowden, “The performance analysis of Linux networking–packet receiving”, Computer Communication, Elsevier, March 8, 2007, Volume 3:1044-1057,

Wenji Wu, Matt Crawford, “Potential performance bottleneck in Linux TCP”, International Journal of Communication Systems, Wiley, February 1, 2007, 20:1263-1283,

Conference Papers

Yu, S.Y., Zhang, L., Kissel, E., Wu, W. and Monga, I., “An extensible control plane software architecture for quantum networking research”, Proceedings of the 2nd Workshop on Quantum Networks and Distributed Quantum Computing, September 8, 2025, 35-41,

Se-young Yu, Elia Perego, Justin Phillips, You-Wei Cheah, Prathwiraj Umesh, Guangqi Gao, Jiarui Liu, Ezra Kissel, Michael Bregar, Ke Sun, Qiming Wu, Raju Valivarthi, Erhan Saglamyurek, Wenji Wu, Maria Spiropulu, Hartmut Häffner, Inder Monga, “A two-level control framework for quantum networks”, 2025 IEEE International Conference on Quantum Computing and Engineering (QCE), August 31, 2025, 1:1302-1311,

Schon D, Umesh P, Cheah YW, Yu SY, Kissel E, Valivarthi R, Saglamyurek E, Ramakrishnan L, Wu W, Sipahigil A, Spiropulu M., “The QUANT-NET testbed development and preliminary results”, 2024 IEEE International Conference on Quantum Computing and Engineering (QCE), September 15, 2024, 1:1799-1808,

Inder Monga, Erhan Saglamyurek, Ezra Kissel, Hartmut Haffner, Wenji Wu, “QUANT-NET: A testbed for quantum networking research over deployed fiber”, SIGCOMM QuNet'23, ACM, September 10, 2023, QuNet'23:31-37,

Wenji Wu, Joaquin Chung, Gregory Kanter, Nikolai Lauk Raju Valivarthi, Russell Ceballos, Cristian Pena, Neil Sinclair, Jordan Thomas, Ely Eastman, Si Xie, Rajkumar Kettimuthu, Prem Kumar, Panagiotis Spentzouris, Maria Spiropulu, “Illinois express quantum network for distributing and controlling entanglement on metro-scale”, IEEE/ACM International Workshop on Quantum Computing Software (QCS), IEEE/ACM, December 22, 2021,

Joaquin Chung, Gregory Kanter, Nikolai Lauk, Raju Valivarthi, Wenji Wu, Russell R. Ceballos, Cristián Peña, Neil Sinclair, Jordan Thomas, Si Xie, Rajkumar Kettimuthu, Prem Kumar, Panagiotis Spentzouris, Maria Spiropulu, “Illinois Express Quantum Network (IEQNET): metropolitan-scale experimental quantum networking over deployed optical fiber”, SPIE, Quantum Information Science, Sensing, and Computation XIII, SPIE, April 21, 2021,

Wenji Wu, Liang Zhang, Qiming Lu, Phil DeMar, Robert Illingworth, Joe Mambretti, Se-Young Yu, Jim Hao Chen, Inder Monga, Xi Yang, Tom Lehman, Chin Guok, John MacAuley, “ROBIN (RuciO/BIgData Express/SENSE) A Next-Generation High-Performance Data Service Platform”, 2020 IEEE/ACM Innovating the Network for Data-Intensive Science (INDIS), IEEE/ACM, December 31, 2020,

Qiming Lu, Liang Zhang, Sajith Sasidharan, Wenji Wu, Phil DeMar, Chin Guok, John Macauley, Inder Monga, Se-Young Yu, Jim Hao Chen, Joe Mambretti, Jin Kim, Seo-Young Noh, Xi Yang, Tom Lehman, Gary Liu, “BigData Express: Toward Schedulable, Predictable, and High-Performance Data Transfer”, 2018 IEEE/ACM Innovating the Network for Data-Intensive Science (INDIS), IEEE/ACM, February 24, 2019,

Liang Zhang, Phil Demar, Bockjoo Kim, Wenji Wu, “MDTM: Optimizing Data Transfer Using Multicore-Aware I/O Scheduling”, 2017 IEEE 42nd Conference on Local Computer Networks (LCN), IEEE, September 12, 2017,

Bulk data transfer is facing significant challenges in the coming era of big data. There are multiple performance bottlenecks along the end-to-end path from the source to destination storage system. The limitations of current generation data transfer tools themselves can have a significant impact on end-to-end data transfer rates. In this paper, we identify the issues that lead to underperformance of these tools, and present a new data transfer tool with an innovative I/O scheduler called MDTM. The MDTM scheduler exploits underlying multicore layouts to optimize throughput by reducing delay and contention for I/O reading and writing operations. With our evaluations, we show how MDTM successfully avoids NUMA-based congestion and significantly improves end-to-end data transfer rates across high-speed wide area networks.

Wenji Wu, Phil DeMar, “Wirecap: a novel packet capture engine for commodity NICs in high-speed networks”, ACM IMC'14, ACM, November 5, 2014, IMC'14:395-406,

Web Articles

Others

Wenji Wu, Phil DeMar, Liang Zhang, Packet capture engine for commodity network interface cards in high-speed networks, Patent US20160127276A1 United States, November 4, 2015,