Liang Liu     刘亮

Assistant Professor
Department of Electronic and Information Engineering
The Hong Kong Polytechnic University
Office: DE605
Tel: +852 2766 3542     Fax: +852 2362 8439
Email: liang-eie.liu@polyu.edu.hk

Dr. Liang LIU received the B.Eng. degree from the School of Electronic and Information Engineering at Tianjin University in 2010, and the Ph.D. degree from the Department of Electrical and Computer Engineering at National University of Singapore (NUS) in 2014. He was a postdoctoral fellow at University of Toronto from 2015 to 2017, and a research fellow at NUS from 2017 to 2019. Currently, he is an assistant professor in the Department of Electronic and Information Engineering at The Hong Kong Polytechnic University (PolyU). His research interests include wireless communications and networking, advanced signal processing and optimization techniques, and Internet-of-Things (IoT).

Dr. Liang LIU is the recipient of the 2017 IEEE Signal Processing Society Young Author Best Paper Award, and the best paper award for 2011 International Conference on Wireless Communications and Signal Processing (WCSP). He was listed in Highly Cited Researchers, also known as World's Most Influential Scientific Minds, by Clarivate Analytics (Thomson Reuters) in 2018.

Dr. Liang LIU' CV and research profiles can be found at: My CV, ResearcherID, ORCID, Google Scholar Citations, ResearchGate Profile


Announcement: There are some openings for Ph.D and postdoc in our research group. More information can be found here.

News

[07/2021] My first IEEE Transactions on Information Theory paper entitled "Uplink-downlink duality between multiple-access and broadcast channels with compressing relays" was accepted. Cheers.
[06/2021] We gave a tutorial entitled "Recent Techniques for Massive Grant-free Access for Future IoT" at 2021 IEEE International Conference on Communications (ICC).
[05/2021] Congratulations to my first Ph.D. student, Mr. Qipeng Wang, who joined my research group in September 2020 after obtaining his bachelor degree from Harbin Institute of Technology, on the acceptance of his first-authored 2021 IEEE International Symposium on Information Theory (ISIT) paper. A very good achievement for a junior Ph.D. student who just started his research life about half a year ago.
[04/2021] Our paper "Channel estimation for intelligent reflecting surface assisted multiuser communications: framework, algorithms, and analysis", which was published at IEEE Transactions on Wireless Communications in October, 2020, was listed as an ESI hot paper (top 0.1% by citations for field and age). This is a joint work with my former postdoc, Dr. Zhaorui Wang, at PolyU and Prof. Shuguang Cui at CUHK@SZ. More information can be found at here.
[12/2020] We gave a tutorial entitled "Massive Machine-Type Communications for IoT: Recent Progress and Future Directions" at IEEE Global Communications Conference (Globecom), 2020.
[11/2020] We organized a Special Issue on "Massive Machine-Type Communications for IoT" at IEEE Wireless Communications (IF: 11.391). More information can be found at here.
[07/2020] Proposal "Towards Massive Connectivity in Next-Generation Wireless Networks" was funded by RGC.
[05/2019] I joined the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University, as an assistant professor. A new journey began!
[09/2018] I was listed as a 2018 Highly Cited Researcher by Clarivate Analytics (Thomson Reuters).
[09/2018] Our magazine article "Sparse signal processing for grant-free massive connectivity: A future paradigm for random access protocols in the Internet of Things" was published in IEEE Signal Processing Magazine, special issue on Signal Processing and the Internet of Things.
[12/2017] I won 2017 IEEE Signal Processing Society Young Author Best Paper Award, for the paper coauthored with Jie Xu and Rui Zhang, for "Multiuser MISO beamforming for simultaneous wireless information and power transfer," IEEE Trans. Signal Process., vol. 62, no. 18, pp. 4798-4810, Aug. 2014. Cheers.
[11/2017] An invited book chapter, entitled "Transmit beamforming for simultaneous wireless information and energy transfer", was published. (Book URL)
[05/2017] I gave an invited talk entitled "Massive Connectivity Meets Massive MIMO" at University of Science and Technology of China.
[03/2017] I gave an invited talk entitled "Massive Connectivity Meets Massive MIMO" at Tsinghua University.
[03/2017] An invited book chapter, entitled "Fronthaul-aware design for cloud radio-access networks", was published. (Book URL)
[07/2015] I attended my Ph.D Commencement Ceremony at NUS. Cheers.
[09/2014] I gave an invited talk entitled "Joint power control and fronthaul rate allocation for throughput maximization in broadband cloud radio access network" at ShanghaiTech University.

Research

Research Projects


* Start-up Fund of PolyU, PI, HK$ 300,000, "Machine-Type Communications for Future Internet of Things and Industry 4.0," 2019-2022.

* RGC Early Career Scheme (ECS) (25215020), PI, HK$ 776,432, "Towards Massive Connectivity in Next-Generation Wireless Networks," 2021-2023.

* RGC Direct Allocation Grant - Funding Support to Small Projects, PI, HK$ 200,000, "Leveraging Large-Scale Antenna Array for Industrial IoT," 2021-2023.


Research Interests


* Massive Connectivity for Internet-of-Things (IoT) (Publications)
  • Grant-free random access
  • Compressed sensing for device activity detection
  • Massive MIMO for massive connectivity



* Integrated Sensing and Communication (ISAC) (Publications)
  • Fundamental trade-off between communication capacity and sensing distortion
  • Signal processing for sensing in cellular network



* Intelligent Reflecting Surface Assisted Communications (Publications)
  • Channel estimation
  • Resource allocation
  • IRS-assisted massive MIMO



* Ultra-Reliable and Low Latency Communications (URLLC) (Publications)
  • Factory automation for Industry 4.0
  • URLLC for drones





* Unmanned Aerial Vehicles (UAVs) Communications (Publications)
  • Uplink communications: interference control for terrestrial communications
  • Downlink communications: URLLC to control UAVs



* Cloud Radio Access Network (C-RAN) (Publications)
  • Data compression, quantization, and routing over fronthaul links
  • Joint design of wireless links and fronthaul links





* Wireless Power Transfer (WPT) (Publications)
  • Simultaneous wireless information and power transfer
  • Wireless powered communication networks



* Multiuser MIMO (Publications)
  • Interference channel, broadcast channel, multiple-access channel
  • Beamforming design



Publications

Book Chapters


  • L. Liu, W. Yu, and O. Simone, "Fronthaul-aware design for cloud radio access networks," in the chapter of Emerging Technologies for 5G Wireless Systems, Cambridge University Press, 2017. (Book URL)
  • L. Liu, J. Xu, and R. Zhang, "Transmit beamforming for simultaneous wireless information and energy transfer," in the chapter of Library in Signal Processing, New York: Academic Press, 2017. (Book URL)

Journal Papers (ArXiv Public Identifier)


Q. Shi, L. Liu, S. Zhang, and S. Cui, "Device-free sensing in OFDM cellular network," submitted to IEEE J. Sel. Areas Commun.. (Available: arXiv)

Z. Wang, L. Liu, S. Zhang, and S. Cui, "Massive MIMO communication with intelligent reflecting surface," submitted to IEEE Trans. Wireless Commun.. (Available: arXiv)

L. Liu, Y. Liu, P. Patil, and W. Yu, "Uplink-downlink duality between multiple-access and broadcast channels with compressing relays," to appear in IEEE Trans. Inf. Theory. (Available: arXiv)

H. Xie, J. Xu, Y-F. Liu, L. Liu, and D. W. K. Ng, "User grouping and reflective beamforming for IRS-aided URLLC," to appear in IEEE Wireless Commun. Lett., 2021. (Available: arXiv)

Y. Han, L. Liu, L. Duan, and R. Zhang, "Towards reliable UAV swarm communication in D2D-enhanced cellular network," IEEE Trans. Wireless Commun., no. 20, no. 3, pp. 1567-1581, Mar. 2021. (Available: arXiv)

Z. Wang, L. Liu, and S. Cui, "Channel estimation for intelligent reflecting surface assisted multiuser communications: Framework, algorithms, and analysis," IEEE Trans. Wireless Commun., vol. 19, no. 10, pp. 6607-6620, Oct. 2020. ESI Highly Cited Paper (Available: arXiv) (Code at Github)

Z. Wang, L. Liu, H. Li, and S. Cui, "Intelligent reflecting surface design for 6G-assisted Internet of Things," Chinese Journal on Internet of Things, vol. 4, no. 2, pp. 84-95, Jun. 2020.

L. Liu, S. Zhang, and R. Zhang, "Multi-beam UAV communication in cellular uplink: Cooperative interference cancellation and sum-rate maximization," IEEE Trans. Wireless Commun., vol. 18, no. 10, pp. 4679-4691, Oct. 2019. (Available: arXiv)

L. Liu, S. Zhang, and R. Zhang, "CoMP in the sky: UAV placement and movement optimization for multi-user communications," IEEE Trans. Commun., vol. 67, no. 8, pp. 5645-5658, Aug. 2019. (Available: arXiv)

Q. Wu, L. Liu, and R. Zhang, "Fundamental trade-offs in communication and trajectory design for UAV-enabled wireless network," IEEE Wireless Commun., vol. 26, no. 1, pp. 36-44, Feb. 2019. ESI Highly Cited Paper & The No. 7 most cited paper among all the papers published after 2019 in IEEE Wireless Communications Magazine (Available: arXiv)

L. Liu, E. G. Larsson, W. Yu, P. Popovski, C. Stefanovic, and E. de Carvalho, "Sparse signal processing for grant-free massive connectivity: A future paradigm for random access protocols in the Internet of Things," IEEE Signal Process. Mag., vol. 35, no. 5, pp. 88-99, Sep. 2018. ESI Highly Cited Paper & The No. 7 most cited paper among all the papers published after 2018 in IEEE Signal Processing Magazine (Available: arXiv)

L. Liu and W. Yu, "A D2D-based protocol for ultra-reliable wireless communications for industrial automation," IEEE Trans. Wireless Commun., vol. 17, no. 8, pp. 5045-5058, Aug. 2018. (Available: arXiv)

L. Liu, P. Patil, and W. Yu, "Channel diagonalization for cloud radio access," IEEE Wireless Commun. Lett., vol. 7, no. 4, pp. 622-625, Aug. 2018. (Available: arXiv)

L. Liu and W. Yu, "Massive connectivity with massive MIMO-Part II: Achievable rate characterization," IEEE Trans. Signal Process., vol. 66, no. 11, pp. 2947-2959, Jun. 2018. (Available: arXiv)

L. Liu and W. Yu, "Massive connectivity with massive MIMO-Part I: Device activity detection and channel estimation," IEEE Trans. Signal Process., vol. 66, no. 11, pp. 2933-2946, Jun. 2018. ESI Highly Cited Paper & The No. 5 most cited paper among all the papers published after 2018 in IEEE Transactions on Signal Processing (Available: arXiv) (Code at Github)

L. Liu and W. Yu, "Cross-layer design for downlink multihop cloud radio access networks with network coding," IEEE Trans. Signal Process., vol. 65, no. 7, pp. 1728-1740, Apr. 2017. (Available: arXiv)

L. Liu and R. Zhang, "How to diagonalize a MIMO channel with arbitrary transmit covariance?," IEEE Wireless Commun. Lett., vol. 5, no. 4, pp. 352-355, Aug. 2016. (Available: arXiv)

H. Xing, L. Liu, and R. Zhang, "Secrecy wireless information and power transfer in fading wiretap channel," IEEE Trans. Veh. Technol., vol. 65, no. 1, pp. 180-190, Jan. 2016. (Available: arXiv)

L. Liu, S. Bi, and R. Zhang, "Joint power control and fronthaul rate allocation for throughput maximization in OFDMA-based cloud radio access network," IEEE Trans. Commun., vol. 63, no. 11, pp. 4097-4110, Nov. 2015. (Available: arXiv)

L. Liu, and R. Zhang, "Optimized uplink transmission in multi-antenna C-RAN with spatial compression and forward," IEEE Trans. Signal Process., vol. 63, no. 19, pp. 5083-5095, Oct. 2015. (Available: arXiv)

S. Lee, L. Liu, and R. Zhang, "Collaborative wireless energy and information transfer in interference channel," IEEE Trans. Wireless Commun., vol. 14, no. 1, pp. 545-557, Jan. 2015. (Available: arXiv)

L. Liu, R. Zhang, and K. C. Chua, "Multi-antenna wireless powered communication with energy beamforming," IEEE Trans. Commun., vol. 62, no. 12, pp. 4349-4361, Dec. 2014. ESI Highly Cited Paper & The No. 4 most cited paper among all the papers published after 2014 in IEEE Transactions on Communications (Available: arXiv)

J. Xu, L. Liu, and R. Zhang, "Multiuser MISO beamforming for simultaneous wireless information and power transfer," IEEE Trans. Signal Process., vol. 62, no. 18, pp. 4798-4810, Aug. 2014. ESI Highly Cited Paper & 2017 IEEE Signal Processing Society Young Author Best Paper Award & The No. 4 most cited paper among all the papers published after 2014 in IEEE Transactions on Signal Processing (Available: arXiv)

Q. Shi, L. Liu, W. Xu, and R. Zhang, "Joint transmit beamforming and receive power splitting for MISO SWIPT systems," IEEE Trans. Wireless Commun., vol. 13, no. 6, pp. 3269-3280, Jun. 2014. ESI Highly Cited Paper & The No. 7 most cited paper among all the papers published after 2014 in IEEE Transactions on Wireless Communications (Available: arXiv)

L. Liu, R. Zhang, and K. C. Chua, "Secrecy wireless information and power transfer with MISO beamforming," IEEE Trans. Signal Process., vol. 62, no. 7, pp. 1850-1863, Apr. 2014. ESI Highly Cited Paper & The No. 2 most cited paper among all the papers published after 2014 in IEEE Transactions on Signal Processing (Available: arXiv)

L. Liu, R. Zhang, and K. C. Chua, "Wireless information and power transfer: a dynamic power splitting approach," IEEE Trans. Commun., vol. 61, no. 9, pp. 3990-4001, Sep. 2013. ESI Highly Cited Paper & The No. 5 most cited paper among all the papers published after 2013 in IEEE Transactions on Communications (Available: arXiv)

L. Liu, R. Zhang, and K. C. Chua, "Wireless information transfer with opportunistic energy harvesting," IEEE Trans. Wireless Commun., vol. 12, no. 1, pp. 288-300, Jan. 2013. ESI Highly Cited Paper & The No. 5 most cited paper among all the papers published after 2013 in IEEE Transactions on Wireless Communications (Available: arXiv)

L. Liu, R. Zhang, and K. C. Chua, "Achieving global optimality for weighted sum-rate maximization in the K-user Gaussian interference channel with multiple antennas," IEEE Trans. Wireless Commun., vol. 11, no. 5, pp. 1933-1945, May 2012. (Available: arXiv)

Conference Papers


R. Wang, L. Liu, S. Zhang, and C. Yu, "A new channel estimation strategy in intelligent reflecting surface assisted networks," to appear in IEEE Global Communications Conference (Globecom), 2021. (Available: arXiv)

R. Liu, L. Liu, D. He, W. Zhang, and E. G. Larsson, "Detection of abrupt change in channel covariance matrix for multi-antenna communication," to appear in IEEE Global Communications Conference (Globecom), 2021. (Available: arXiv)

Q. Wang, L. Liu, S. Zhang, and C. M. Lau, "On massive IoT connectivity with temporally-correlated user activity," in Proc. IEEE International Symposium on Information Theory (ISIT), 2021. (Available: arXiv) (Code at Github)

L. Liu and Y.-F. Liu, "An efficient algorithm for device detection and channel estimation in asynchronous IoT systems," in Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), 2021. (Available: arXiv)

L. Liu and S. Zhang, "A two-stage radar sensing approach based on MIMO-OFDM technology," in Proc. IEEE Global Communications Conference (Globecom) Workshop on Integrated Sensing And Communication, 2020. (Available: arXiv)

Z. Wang, L. Liu, and S. Cui, "Intelligent reflecting surface assisted massive MIMO communications," in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2020. (Available: arXiv)

L. Cheng, L. Liu, and S. Cui, "A covariance-based user activity detection and channel estimation approach with novel pilot design," in Proc. IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), 2020. (Available: arXiv)

Z. Wang, L. Liu, and S. Cui, "Channel estimation for intelligent reflecting surface assisted multiuser communications," in Proc. IEEE Wireless Communications and Networking Conference (WCNC), 2020. (Available: arXiv)

L. Liu, S. Zhang, and R. Zhang, "Exploiting NOMA for multi-beam UAV communication in cellular uplink," in Proc. IEEE International Conference on Communications (ICC), Shanghai, China, 2019.

L. Liu, S. Zhang, and R. Zhang, "Cooperative interference cancellation for multi-beam UAV uplink communication: A DoF analysis," in Proc. IEEE Global Communications Conference (Globecom) Workshops, Abu Dhabi, the United Arab Emirates, 2018.

H. Xing, L. Liu, J. Xu, and A. Nallanathan, "Joint task assignment and wireless resource allocation for cooperative mobile-edge computing," in Proc. IEEE International Conference on Communications (ICC), Kansas, America, 2018.

L. Liu and W. Yu, "Massive device connectivity with massive MIMO," in Proc. IEEE International Symposium on Information Theory (ISIT), Aachen, Germany, 2017.

L. Liu and W. Yu, "Joint sparse beamforming and network coding for downlink multi-hop cloud radio access networks," in Proc. IEEE Global Communications Conference (Globecom), Washington D.C., America, 2016.

L. Liu, P. Patil, and W. Yu, "An uplink-downlink duality for cloud radio access network," in Proc. IEEE International Symposium on Information Theory (ISIT), Barcelona, Spain, 2016.

L. Liu and R. Zhang, "Downlink SINR balancing in C-RAN under limited fronthaul capacity," in Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Shanghai, China, 2016.

H. Xing, L. Liu, and R. Zhang, "Secrecy wireless information and power transfer in fading wiretap channel," in Proc. IEEE International Conference on Communications (ICC), Sydney, Australia, 2014.

J. Xu, L. Liu, and R. Zhang, "Multiuser MISO beamforming for simultaneous wireless information and power transfer," in Proc. IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Vancouver, BC, Canada, 2013.

L. Liu, R. Zhang, and K. C. Chua, "Secrecy wireless information and power transfer with MISO beamforming," in Proc. IEEE Global Communications Conference (Globecom), Atlanta, America, 2013.

L. Liu, R. Zhang, and K. C. Chua, "Wireless information transfer with opportunistic energy harvesting," in Proc. IEEE International Symposium on Information Theory (ISIT), Cambridge, MA, America, 2012.

L. Liu, R. Zhang, and K. C. Chua, "A new approach to weighted sum-rate maximization for the K-user Gaussian interference channel," in Proc. IEEE International Conference on Wireless Communications and Signal Processing (WCSP), Nanjing, China, 2011. Best Paper Award




Public Software Packages

We will share the codes for the new algorithms investigated in our research group on Github. Interested readers may find the codes below.


1. Standard AMP: MMV-AMP for massive connectivity with massive MIMO

L. Liu and W. Yu, "Massive connectivity with massive MIMO-Part I: Device activity detection and channel estimation," IEEE Trans. Signal Process., vol. 66, no. 11, pp. 2933-2946, Jun. 2018.


2. SI-aided AMP: MMV-AMP for massive connectivity with temporal side information

Q. Wang, L. Liu, S. Zhang, and C. M. Lau, "On massive IoT connectivity with temporally-correlated user activity," to appear in IEEE International Symposium on Infomration Theory (ISIT), 2021. (Available: arXiv)


3. Low-Overhead Channel Estimation Framework: Reducing redundancy for channel estimation in IRS-assised multi-user uplink communication

Z. Wang, L. Liu, and S. Cui, "Channel estimation for intelligent reflecting surface assisted multiuser communications: framework, algorithms, and analysis," IEEE Trans. Wireless Commun., vol. 19, no. 10, pp. 6607-6620, Oct. 2020.


4. Change Detection: LLR-based change detector for channel covariance matrix

R. Liu, L. Liu, D. He, W. Zhang, and E. G. Larsson, "Detection of abrupt change in channel covariance matrix for multi-antenna communication," to appear in IEEE Global Communications Conference (Globecom), 2021. (Available: arXiv)




Team

Ph.D. Student


• Qipeng Wang Google Scholar
        Ph.D. student since 2020/09
        Degree: B.S., Harbin Institute of Technology
        Research interests: massive IoT connectivity

• Qin Shi Google Scholar
        Ph.D. student since 2021/01
        Degree: B.S., Beijing Institute of Technology
        Research interests: integrated sensing and communication

• Rui Wang
        Ph.D. student since 2021/09
        Degree: M.S., Southeast University
                      B.S., University of Electronic Science and Technology of China
        Research interests: intelligent reflecting surface assisted wireless communication

• Hongjia Huang
        Ph.D. student since 2021/09 (joint programme with SUSTech, co-supervised with Dr. Weijie Yuan)
        Degree: M.S. and B.S., Shenzhen University
        Research interests: integrated sensing and communication


Visiting Ph.D. Student


• Runnan Liu
        A visitor until 2022/04
        Ph.D. student in Shanghai Jiao Tong University
        Research interests: orthogonal time frequency and space modulation


Visiting Postdoc


• Miao Jiang
        A visitor until 2022/05
        Degree: Ph.D., Sun Yat-sen University
        Research interests: information security, non-orthogonal multiple access

• Yiqing Li
        A visitor until 2022/05
        Degree: Ph.D., Sun Yat-sen University
        Research interests: information security, non-orthogonal multiple access


Alumni


• Zhaorui Wang Google Scholar
        Postdoc from 2019/09 to 2020/09
        Degree: Ph.D., The Chinese University of Hong Kong
        Research interests: intelligent reflecting surface assisted wireless communication




Teaching

ENG 2003 Information Technology

EIE 579 Advanced Telecommunication Systems

EIE 589 Wireless Data Network

Activities

Guest Editor


[1] IEEE Wireless Communications Special Issue on Massive Machine-Type Communications for IoT


Technical Program Committee (TPC) Member


[1] IEEE VTC 2015 Fall
[2] IEEE Globecom 2015 Workshop on Heterogeneous and Small Cell Networks
[3] IEEE ICC 2016 Wireless Communications Symposium
[4] IEEE ICC 2016 Workshop on Wireless Physical Layer Security
[5] IEEE Globecom 2016 Workshop on Emerging Technologies for 5G Wireless Cellular Networks
[6] IEEE Globecom 2016 Workshop on Full Duplex Wireless Communications
[7] IEEE Globecom 2017 Workshop on Emerging Technologies for 5G and Beyond Wireless and Mobile Networks
[8] IEEE ICC 2017 Wireless Communications Symposium
[9] IEEE PIMRC 2018
[10] IEEE Globecom 2018 Workshop on Emerging Technologies for 5G and Beyond Wireless and Mobile Networks
[11] IEEE PIMRC 2019
[12] IEEE Globecom 2019 Wireless Communications Symposium
[13] IEEE Globecom 2020 Wireless Communications Symposium
[14] IEEE ICC 2020 Wireless Communications Symposium
[15] IEEE VTC-Fall 2020 Workshop on W5: Technology and Standardization Evolution for 5G New Radio
[16] IEEE Globecom 2020 Workshop on Future of Wireless Access for Industrial IoT


Awards

  • Highly Cited Researcher in 2018 by Clarivate Analytics.
  • IEEE Signal Processing Society Young Author Best Paper Award, 2017, for the paper coauthored with Jie Xu and Rui Zhang, for "Multiuser MISO beamforming for simultaneous wireless information and power transfer," IEEE Trans. Signal Process., vol. 62, no.18, pp. 4798-4810, Aug. 2014.
  • Best Paper Award, IEEE International Conference on Wireless Communications and Signal Processing (WCSP), 2011.
  • Exemplary Reviewer for IEEE Transactions on Communications, 2018 (Fewer than 2%)
  • Exemplary Reviewer for IEEE Wireless Communications Letters, 2017 (Fewer than 3%)
  • Exemplary Reviewer for IEEE Transactions on Communications, 2015 (Fewer than 2%)
  • Exemplary Reviewer for IEEE Wireless Communication Letters, 2015 (Fewer than 3%)
  • Exemplary Reviewer for IEEE Communications Letters, 2014 (Fewer than 3%)
  • Exemplary Reviewer for IEEE Communications Letters, 2013 (Fewer than 3%)
  • President's Graduate Fellowships, National University of Singapore, 2011-2014.
  • Research Scholarship, National University of Singapore, 2010-1011.
  • National Scholarship, Tianjin University, 2008.