Picture of Lei Guan

Lei Guan

Dublin, Ireland
Member of Technical Staff

Education

PhD: 2008-2011, University College Dublin (UCD)
M.E: 2006-2008, Harbin Institute of Technology (HIT)
B.E: 2002-2006, Harbin Institute of Technology (HIT)

Biography

Lei Guan received the B.E. degree and the M.E. degree, both in Electronic Engineering from Harbin Institute of Technology (HIT), Harbin, China in 2006 and 2008, respectively. He was awarded the Ph.D. degree in Electronic Engineering in 2012 by University College Dublin (UCD), Dublin, Ireland. He served as senior research engineer in UCD School of Electrical, Electronic and Communications Engineering for 1 year before his research fellowship in CTVR at the telecommunications research center (Now CONNECT Centre), Trinity College Dublin (TCD), Ireland.

Currently he is a member of technical staff at Bell Labs, Ireland. During his Ph.D, his research interests include digital predistortion (DPD) based linearization and system-level modeling of RF/Microwave power amplifiers (PA); peak to average power ratio (PAPR) reduction for OFDM signals; and the FPGA implementation of  DPD and PAPR Reduction algorithms.

His research interests are mainly in nonlinear system identification algorithms, FPGA-based high performance digital signal processing for wireless communications, high efficient digitally-assisted wireless transceivers, compact and energy efficient massive MIMO processing and flexible architecture with generalized beamforming. He also has interests in FPGA-based network protocol implementation and acceleration, and all-programmable devices based statistical modeling for artificial intelligent (AI) and machine visions.

Research Interests

  • Modulation & Multiplexing
  • System Integration
  • Wireless Communications

Professional Activities

Reviewer of:
IEEE Transactions on Microwave Theory and Techniques
International Journal of Microwave and Wireless Technologies
IEEE Microwave and Wireless Components Letters
IEEE Signal Processing Letters


Selected Articles and Publications

Journals:

  • A. Barakat, M. Thian, V. Fusco, S. Bulja and Lei Guan, "Toward a More Generalized Doherty Power Amplifier Design for Broadband Operation", IEEE Transactions on Microwave Theory and Techniques, Vol.65, no.3, pp.846-859, May. 2017.
  • V. Venkateswaran, F. Pivit and Lei Guan, "Hybrid RF and Digital Beamformer for Cellular Networks: Algorithms, Microwave Architectures and Measurements", IEEE Transactions on Microwave Theory and Techniques, Vol.64, no.7, pp.2226-2243, July. 2016.
  • Lei Guan, P. Rulikowski and R. Kearney, "Practical Multi-band Large Scale Antenna System Architecture for 5G Wireless Networks", IET Electronics Letters, Vol.52, no.11, pp.970-972,May . 2016.
  • Lei Guan, "Xilinx FPGA Enables Scalable MIMO Precoding Core", Excellence in Wireless Communications, Xilinx Xcell Journal, issue 94, Mar. 2016.
  • Lei Guan, "Compact scalable frequency dependent precoding and its FPGA implementation for 5G Massive MIMO wireless systems", IET Electronics Letters, Vol.51, no.23, pp.1937-1939, Nov. 2015.
  • Lei Guan, "Evaluating the Linearity of RF-DAC Multiband Transmitters", Xilinx Xcell Journal, issue 91, May. 2015.
  • Lei Guan, "Simplify your "hot"​ testing with Xilinx's Zynq SoC", Xilinx Xcell Journal, issue 90, Feb. 2015.
  • Lei Guan and A. Zhu, “Green Communications: Digital Predistortion for Wideband RF Power Amplifiers”, IEEE Microwave Magazine, Vol.15, no.7, pp.84-99, Nov. 2014.
  • Lei Guan, R. Kearney, C. Yu and A. Zhu, “High-performance Digital Predistortion Test Platform Development for Wideband RF Power Amplifiers”, International Journal of  Microwave and Wireless Technologies, Vol.5, no.2, pp.149-162, Apr. 2013.
  • C. Yu, Lei Guan, E. Zhu and A. Zhu, “Band-Limited Volterra Series-Based Digital Predistortion for Wideband RF Power Amplifiers”, IEEE Transactions on Microwave Theory and Techniques, Vol. 60, no.12, pp.4198-4208, Dec. 2012.
  • N. Tuffy, Lei Guan, A. Zhu and T. J. Brazil, “A Simplified Broadband Design Methodology for Linearized High Efficiency Continuous Class-F Power Amplifiers”, IEEE Transactions on Microwave Theory and Techniques, Vol. 60, no. 6, pp.1952-1963, Jun. 2012.
  • Lei Guan and A. Zhu, “Optimized Low-Complexity Implementation of Least Squares-Based Model Extraction for Digital Predistortion of RF Power Amplifiers”, IEEE Transactions on Microwave Theory and Techniques, Vol. 60, no. 3, pp. 594-603, Mar. 2012.
  • Lei Guan and A. Zhu, “Dual-loop Model Extraction for Digital Predistortion of Wideband RF Power Amplifiers”, IEEE Microwave and Wireless Components Letters, Vol. 21, no. 9, pp. 501-503, Sep. 2011.
  • Lei Guan and A. Zhu, “Gaussian Pulse-Based Two-Threshold Parallel Scaling Tone Reservation for PAPR Reduction of OFDM Signals”, International Journal of Digital Multimedia Broadcasting, Apr. 2011.
  • Lei Guan and A. Zhu, “Low-Cost FPGA Implementation of Volterra Series-Based Digital Predistorter for RF Power Amplifiers”, IEEE Transactions on Microwave Theory and Techniques, Vol. 58, no. 4, pp. 866 – 872, Apr. 2010.

 

Conferences:

  • S. McGettrick, Lei Guan, A. Hill, D.B. Payne and M. Ruffini, “Ultra-fast 1+1 protection in 10 Gb/s Symmetric Long Reach PON”, 39th European Conference and Exhibition on Optical Communication (ECOC 2013), London, UK, September, 2013.
  • Lei Guan, C. Yu and A. Zhu, “Bandwidth-constrained Least Squares-based Model Extraction for Band-limited Digital Predistortion of RF Power Amplifiers”, IEEE International Workshop on “Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC”, Dublin, Ireland, September, 2012.
  • C. Yu, Lei Guan and A. Zhu, “Band-limited Volterra Series-based Behavioral Modeling of RF Power Amplifiers”, The IEEE MTT-S International Microwave Symposium, Montreal, Canada, June, 2012.
  • Lei Guan and A. Zhu, “Simplified Dynamic Deviation Reduction-based Volterra Model for Doherty Power Amplifiers”, IEEE International Workshop on “Integrated Nonlinear Microwave and Millimeterwave Circuits, INMMIC”, Vienna, Austria, April, 2011.
  • I. Braz, Lei Guan, A. Zhu, and T. J. Brazil, “PAPR reduction technique using unused subcarriers for SFBC-based MIMO-OFDM systems”, The European Wireless Technology Conference 2010, Paris, France, September, 2010.
  •  I. Braz, Lei Guan, A. Zhu, and T. J. Brazil, “Peak-to-Average Power Ratio Reduction of SFBC MIMO-OFDM Signals Using Unused Tone”, IEEE International Microwave Workshop Series on “RF Front-ends for Software Defined and Cognitive Radio Solutions”, Aveiro, Portugal, February, 2010.