Xuesong Cai
Postdoctoral researcher
Department of Electronic Systems, Aalborg University
Nokia Bell Labs
xuc@es.aau.dk; xuesong.cai.ext@nokia.com; xuesong.cai@ieee.org
Homepage; Google Scholar; Publons
News:
-
31.01.2021: Our paper “Modeling Multi-frequency Characteristics for Classroom and Hall Scenarios at 2-4, 9-11 and 27-29 GHz Bands” has been accepted by IEEE Access for publication.
-
31.12.2020: Our paper “Joint modeling of received power, mean delay, and delay spread for wideband radio channels” has been accepted by IEEE Transactions on Antennas and Propagation for publication.
-
30.11.2020: Our paper “Geometry-based MPC tracking and modeling algorithm for time-varying UAV channels” has been accepted by IEEE Transactions on Wireless Communications for publication.
Research interest:
-
Propagation channel characterization
-
High-resolution parameter estimation
-
UAV communications
-
Power control and resource allocation
-
Over-the-air (OTA) channel emulation
Professional experiences:
-
Postdoctoral research, Wireless Communications Networks Section, Aalborg University, and Nokia Bell Labs, Denmark, 15th April 2020 - present. Collaboration: Prof. Preben E. Mogensen (World Top 2% Scientist)
-
Postdoctoral research, Antenna, Propagation and Millimetre-wave Systems Section, Aalborg University, Denmark, 15th May 2018 - 15th April 2020. Collaboration: Prof. Gert Frølund Pedersen (World Top 2% Scientist)
-
Ph.D. research, Tongji University, China, 1st Sept. 2013 - 31st Mar. 2018. Supervisors: Prof. Antonio Pérez Yuste and Prof. Xuefeng Yin
-
Visiting scholar, Technical University of Madrid, Spain, Feb. 2016 - Aug. 2016. Supervisors: Prof. Cesar Briso and Prof. Antonio Pérez Yuste
-
Intern with Huawei Technologies, Shanghai. July 2015 - Oct. 2015
Research expeditions:
-
Enabling high-throughput UAV communications, April 2020 - present
-
Performance evaluation method for user equipment in mobile millimeter-wave scenarios, 2018-2019.
-
Foliage loss and building loss at mm-wave bands, 2017-2018.
-
Air-to-ground propagation channel measurement, modeling and simulation, 2017-2018.
-
Channel measurement, parameter estimation and modeling for Massive MIMO systems, 2016-2018.
-
Development of a sea-wave-dynamics monitoring radar, 2015-2016.
-
Analysis and verification of channel fingerprint characteristics in UMTS and LTE-A networks, 2013-2015.
Prizes and awards:
-
Marie Sklodowska-Curie Actions Seal of Excellence, H2020-MSCA-IF-2018, European Commission, Mar. 2019.
-
Distinguished Doctorate Graduate Awarded by Shanghai Municipal Education Commission, China, Mar. 2018
-
ZTE Blue Sword - Future Leaders Plan, ZTE, 2018
-
ZTE “Fantastic Algorithm” Award, Jul. 2017
-
Distinguished Student, Tongji University, May. 2017
-
Distinguished Student, Tongji University, Oct. 2016
-
National Ph.D. Scholarship (the highest National honor for Ph.D. candidates in China), Sept. 2016
-
Outstanding Student Scholarship, Tongji University, Sept. 2010
Biography:
Xuesong Cai received the B.S. degree and the Ph.D. degree (Hons.) from Tongji University, Shanghai, China, in 2013 and 2018, respectively. From 2018 to 2020, he was a postdoctoral research fellow with the APMS section, Department of Electronic Systems, Aalborg University (AAU), Aalborg, Denmark. Since April 2020, he has been a postdoctoral fellow with the Wireless Communication Networks Section, Department of Electronic Systems, AAU, and with Nokia Bell Labs. His research interests include propagation channel measurement, high-resolution parameter estimation, channel characterization, channel modeling, over-the-air testing and UAV communications for 5G and beyond wireless communications.
Journal papers:
-
X. Cai, T. S. Izydorczyk, J. Rodríguez-Piñeiro, I. Z. Kovács, J. Wigard, X. Yin, F. M. L. Tavares and P. E. Mogensen, “Empirical Low-Altitude UAV Spatial Channel Modeling for Cellular Networks Connectivity,” submitted to IEEE Journal on Selected Areas in Communications, Oct. 2020. [ArXiv], [RG].
-
X. Cai, I. Kovács, J. Wigard, P. E. Mogensen, “A Centralized and Scalable Uplink Power Control Algorithm in Low SINR: A Case Study for UAV Communications,” submitted to IEEE Transactions on Antennas and Propagation, Aug 2020. [ArXiv], [RG].
-
X. Cai, W. Fan, Y. Miao and G. F. Pedersen, “Dynamic channel emulation in a cost-effective MPAC setup for mmWave devices over-the-air testing with dominant cluster concept,” submitted to IEEE Transactions on Wireless Communications, June 2020. [ArXiv], [RG].
-
Z. Huang, J. Rodríguez-Piñeiro, T. Domínguez-Bolaño, X. Cai and X. Yin, “Experimental stochastic model of UAV propagation channels for time-evolving MPCs estimated using a novel tracking algorithm,” third-round review with IEEE Transactions on Wireless Communications, Jan. 2021.
-
A. Bharti, R. Adeogun, X. Cai, W. Fan, F. Briol, L. Clavier, T. Pedersen, “Joint modeling of received power, mean delay, and delay spread for wideband radio channels,” to appear, IEEE Transactions on Antennas and propagation, Dec. 2020. [ArXiv].
-
G. Zhang, J. O. Nielsen, X. Cai*(Corresponding Author), S. Kentaro, P. Hanpinitsak, J. Takada, G. F. Pedersen, and W. Fan, “Modeling Multi-frequency Characteristics for Classroom and Hall Scenarios at 2-4, 9-11 and 27-29 GHz Bands,” to appear; IEEE Access, Jan. 2021.
-
J. Rodríguez-Piñeiro, Z. Huang, X. Cai, T. Domínguez-Bolaño and X. Yin, “Geometry-based MPC tracking and modeling algorithm for time-varying UAV channels,” IEEE Transactions on Wireless Communications (early access), Nov. 2020. [VBN], [IEEE Xplore]
-
X. Cai, G. Zhang, C. Zhang, W. Fan, J. Li and G. F. Pedersen, “Dynamic channel modeling for indoor millimeter-wave propagation channels based on measurements,” IEEE Transactions on Communications, vol. 68, no. 9, pp. 5878-5891, Sept. 2020. [RG], [IEEE Xplore].
-
X. Cai, W. Fan, X. Yin, and G. F. Pedersen, “Trajectory-aided maximum-likelihood algorithm for channel parameter estimation in ultra-wideband large-scale arrays,” IEEE Transactions on Antennas and Propagation, vol. 68, no. 10, pp. 7131-7143, Oct. 2020. [RG], [IEEE Xplore].
-
J. Rodríguez-Piñeiro, T. Domínguez-Bolaño, X. Cai*(Corresponding Author), Z. Huang and X. Yin, “Air-to-ground channel characterization for low-height UAVs in realistic network deployments,” IEEE Transactions on Antennas and Propagation, pp. 1-15, 2020. [RG], [IEEE Xplore].
-
A. W. Mbugua, W. Fan, K. Olesen, X. Cai, and G. F. Pedersen, “Phase compensated fiber optic based ultra-wideband channel sounder”, IEEE Transactions on Microwave Theory and Techniques,” vol. 68, no. 2, pp. 636-647, Feb. 2020. [RG], [IEEE Xplore].
-
A. Mbugua, W. Fan, X. Cai, Y. Chen, W. Wang, K. Olesen, G. F. Pedersen, “System development and experimental validation of a long range ultra-wideband channel sounder,” IET Microwaves, Antennas & Propagation, May 2020. [VBN].
-
X. Cai, C. Zhang, J. R. Piñeiro, X. Yin, W. Fan, and G. F. Pedersen, “Interference modeling for low-height air-to-ground channels in live LTE networks,” IEEE Antennas Wireless Propagation Letters, vol. 18, no. 10, pp. 2011-2015, Oct. 2019. [IEEE Xplore].
-
X. Cai, and W. Fan, “A complexity-efficient high resolution parameter estimation algorithm for ultra-wideband large-scale uniform circular array,” IEEE Transactions on Communications, vol. 67, no. 8, pp. 5862-5874, Aug. 2019. [RG], [IEEE Xplore].
-
X. Cai, J. Rodríguez-Piñeiro, X. Yin, N. Wang, B. Ai, G. F. Pedersen, and A. P. Yuste, “An empirical air-to-ground channel model based on passive measurements in LTE,” IEEE Transactions on Vehicular Technology, vol. 68, no. 2, pp. 1140–1154, Feb 2019. [RG], [IEEE Xplore].
-
X. Cai, B. Peng, X. Yin, and A. P. Yuste, “Hough-transform-based cluster identification and modelling for V2V channels based on measurements,” IEEE Transactions on Vehicular Technology, vol. 67, no. 5, pp. 3838–3852, May 2018. [RG], [IEEE Xplore].
-
G. Zhang, K. Saito, W. Fan, X. Cai, P. Hanpinitsak, J. Takada, and G. F. Pedersen, “Experimental characterization of millimeter-wave indoor propagation channels at 28 GHz,” IEEE Access, vol. 6, pp. 76516-76526, Nov 2018. [RG], [IEEE Xplore].
-
J. Chen, X. Yin, X. Cai, and S. Wang, “Measurement-based massive MIMO channel modelling for outdoor LoS and NLoS environments,” IEEE Access, vol. 5, pp. 2126-2140, 2017. [RG], [IEEE Xplore].
-
X. Ye, X. Yin, X. Cai, and A. P. Yuste, “Neural-network-assisted UE localization using radio-channel fingerprints in LTE Networks,” IEEE Access, vol. 5, pp. 12071-12087, 2017. [RG], [IEEE Xplore].
-
X. Cai, X. Yin, X. Cheng, and A. P. Yuste, “An empirical random-cluster model for subway channels based on passive measurements in UMTS,” IEEE Transactions on Communications, vol. 64, no. 8, pp. 3563–3575, Aug. 2016. [RG], [IEEE Xplore].
-
X. Yin, M. Tian, L. Ouyang, X. Cheng, X. Cai, L. Tian, J. Chen, and P. Yang, “Modelling city-canyon pedestrian radio channels based on passive sounding in in-service networks,” IEEE Transactions on Vehicular Technology, vol. 65, no. 10, pp. 7931–7943, Oct. 2016. [IEEE Xplore].
-
X. Yin, X. Cai, X. Cheng, J. Chen, and M. Tian, “Empirical geometry-based random-cluster model for high-speed-train channels in UMTS networks,” IEEE Transactions on Intelligent Transportation Systems, vol. 16, no. 5, pp. 2850–2861, Oct. 2015. [RG], [IEEE Xplore].
Conference papers:
-
G. Zhang, X. Cai, W. Fan, G. F. Pedersen, “A USRP-based channel sounder for UAV communications,” in European Conference on Antennas and Propagation (EuCAP), April 2020, pp. 1–4.
-
Le Hao, J. R. Piñeiro, X. Cai, et. al, “Measurement-based Double-Directional Polarimetric Characterization of Outdoor Massive MIMO Propagation Channels at 3.5GHz,” in International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), April 2020, pp. 1–5.
-
X. Cai, N. Wang, J. Rodríguez-Piñeiro, X. Yin, A. P. Yuste, W. Fan, G. Zhang, G. F. Pedersen, and L. Tian, “Low altitude air-to-ground channel characterization in LTE network,” in European Conference on Antennas and Propagation (EuCAP), 2019, pp. 1–5.
-
W. Fan, A. W. Mbugua, X. Cai, and K. Olesen, “Development and experimental validation of an ultra-wideband channel sounder,” in European Conference on Antennas and Propagation (EuCAP), 2019, pp. 1–5.
-
N. Wang, X. Yin, X. Cai, J. Rodríguez-Piñeiro, A. P. Yuste, and L. Tian, “A novel air-to-ground channel modeling method based on graph model,” in European Conference on Antennas and Propagation (EuCAP), 2019, pp. 1–5.
-
G. Zhang, P. Hanpinitsak, X. Cai, W. Fan, K. Saito, J. Takada, and G. F. Pedersen, “Millimeter-wave channel characterization in large hall scenario at the 10 and 28 GHz bands,” in 2019 13th European Conference on Antennas and Propagation (EuCAP), 2019, pp. 1–4.
-
N. Wang, X. Yin, X. Cai, A. P. Yuste, and Y. Hu, “A sea-wave-dynamics monitoring radar based on propagation characteristics of echo signals,” in Antennas and Propagation (EuCAP), European Conference on, April 2018, pp. 1-5.
-
C. Zhang, X. Yin, X. Cai, and Z. Yu, “Wideband 39 GHz millimeter-wave channel measurements under diversified vegetation,” in International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), September 2018, pp. 1-6.
-
X. Cai, A. G. Plaza, D. Alonso, L. Zhang, C. B. Rodríguez, A. P. Yuste, and X. Yin, “Low altitude UAV propagation channel modelling,” in European Conference on Antennas and Propagation (EuCAP), Mar 2017, pp. 1-5.
-
X. Ye, X. Cai, X. Yin, J. R. Piñeiro, L. Tian, and J. Dou, “Air-to-ground big-data-assisted channel modelling based on passive sounding in LTE networks,” IEEE Globecom Workshops (GC Wkshps) on, November 2017, pp. 1-1.
-
X. Ye, X. Cai, Y. Shen, X. Yin, and X. Cheng, “A geometry-based path loss model for high-speed-train environments in LTE-A networks,” in International Conference on Computing, Networking and Communications (ICNC), Feb 2016, pp. 1–6.
-
X. Ye, X. Cai, H. Wang and X. Yin, “Tunnel and non-tunnel channel characterization for high-speed-train scenarios in LTE-A networks,” IEEE 83rd Vehicular Technology Conference (VTC Spring) on, May 2016, pp. 1-5.
-
X. Cai, X. Yin, and A. P. Yuste., “Direction-of-arrival estimation using single antenna in high-speed-train environments,” in European Conference on Antennas and Propagation (EuCAP), April 2016, pp. 1-4.
-
X. Cai, X. Yin, Y. He, W. Duan, and S. R. Boque, “Measurement-based stochastic models for channel transition in underground subway environments,” in European Conference on Antennas and Propagation (EuCAP), April 2015, pp. 1–5.
-
N. Zhang, X. Yin, S. X. Lu, M. Du, and X. Cai, “Measurement-based angular characterization for 72 GHz propagation channels in indoor environments,” IEEE Globecom Workshops (GC Wkshps) on, December 2014, pp. 370-376.
Book chapters:
-
X. Cai, C. Zhang, W. Fan, “High-Density Channels,” Wiley 5G Ref, May 2020.
-
H. Wang, X. Yin, X. Cai, H. Wang, Z. Yu and J. Lee, “Fading characterization of 73 GHz millimeter-wave V2V channel based on real measurements,” Communication Technologies for Vehicles, Springer, 2018.
Patent:
-
L. Ouyang, X. Cai, X. Yin, “基于多普勒信道特性的天线辐射方向图自适应方法 (Self-adaption method of antenna radiation pattern based on Doppler characteristics),” China, ZL201510563057.7, 2018.
3GPP contribution:
-
3GPP, R1-1720572, “Field measurement results for LTE aerials,” ZTE, Sanechips, Tongji University, 2017.
Presentations in conferences and invited talks in universities:
-
X. Cai (2020), “Trajectory-aided maximum-likelihood algorithm for channel parameter estimation in ultra-wideband large-scale arrays,” COST CA15104 Post-IRACON, Online Microsoft Teams Meeting.
-
X. Cai (2020), “Trajectory-aided maximum-likelihood algorithm for channel parameter estimation in ultra-wideband large-scale arrays,” Vienna University of Technology (TU Wien), Austria.
-
X. Cai (2019), “Hough-Transform-Based cluster identification and modelling for V2V channels based on measurements,” COST CA15104 IRACON, Finland.
-
X. Cai (2019), “Low Altitude Air-to-Ground Channel Characterization in LTE Network,” in European Conference on Antennas and Propagation, Poland.
-
X. Cai (2017), “Low altitude UAV propagation channel modelling,” in European Conference on Antennas and Propagation, France.
-
X. Cai (2016), “Direction-of-arrival estimation using single antenna in high-speed-train environments,” in European Conference on Antennas and Propagation, Switzerland.
-
X. Cai (2016), “An empirical random-cluster model for subway channels based on passive measurements in UMTS,” COST CA15104 IRACON, France.
-
X. Cai (2016), “Investigations on passive sounding,” University of A Coruna, Spain.
-
X. Cai (2015), “Measurement-based stochastic models for channel transition in underground subway environments,” in European Conference on Antennas and Propagation, Portugal.
Technical Programme Committee (TPC):
-
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC) 2018, 2020.
-
European Conference on Networks and Communications (EuCNC) 2018, 2019, 2020.
-
Baltic URSI Symposium, 2020.
-
International conference on innovation and intelligence for informatics, computing, and technologies 2020.
-
IEEE Middle East & North Africa COMMunications Conference (MENACOMM) 2019.
Academic services (peer reviews, see also Publons):
-
IEEE Journal on Selected Areas in Communications
-
IEEE Transactions on Wireless Communications
-
IEEE Transactions on Vehicular Technology
-
IEEE Wireless Communications Magazine
-
IEEE Transactions on Intelligent Transportation Systems
-
IEEE Transactions on Aerospace and Electronic Systems
-
IEEE Antenna and Wireless Propagation Letters
-
IEEE Wireless Communication Letters
-
IEEE Open Journal of Antennas and Propagation
-
IEEE Access
-
IET Microwaves, Antennas and Propagation
-
International Journal of Antennas and Propagation
-
Physical Communication
-
Wireless Communication and Mobile Computing
Updated Janurary 2021