Li Laboratory | AWCC

Welcome

Welcome to the Smart Body-Centric Wireless Communications Laboratory at the Advanced Wireless and Communication Center (AWCC), The University of Electro-Communications (UEC), Tokyo, Japan.

In our group, we are aiming at bridging the gap between ultra-high-speed wireless connectivity and human-centric electromagnetic safety in the 5G-Advanced/6G era, driven by two synergetic pillars:

Advanced Wireless Communications Focusing on next-generation networks (5G/6G, Cell-Free Massive MIMO), we specialize in antenna system design, and MIMO-OTA testing. We also explore channel modeling, Communication EMC, and LF/UHF signal evaluations for industrial environments.
RF-EMF Safety & System Co-Design Integrating traditional bioelectromagnetics with system-level design, we utilize Sionna Ray Tracing and PHY/MAC simulations for EMF-aware network optimization. We tackle the coexistence of high data traffic and EMF compliance in multi-BS scenarios, while evaluating wearable/implantable devices for biomedical applications.

We welcome motivated students and researchers. See our Openings page for available positions.

News

2026/10/28

Conference Zhou (M2) presented at ISAP 2026 (Chengdu). Topics: SDR-Based OTA Testing for BER Evaluation Using USRP and a 2-D Spatial Fading Emulator.

2026/10/20

Conference Oda (M2) presented at MICT Workshop @ Tokyo. Topics: A study on Quiet-Zone Formation for Phantom-Free BAN-OTA Evaluation.

2026/09/23

Conference Utsushigawa (M2) and Goto (M1) presented at IEICE Society Conference (Hokkaido). Topics: A Study on Spatial Downsampling Method for Large-Scale EMF Distribution Assessment, and Field Reconstruction Technique on Biological Surfaces for Power Density Assessment in the FR3 Band.

2026/08/19

Conference Ueda (M2) and Tanaka (M1) presented at URSI GASS 2026 (Kraków). Topics: Estimation of Absorbed Power Density at 7 GHz via PWS-based Inverse Reconstruction, and A Study on RF-EMF Assessment of 5G Shared Base Stations in Subway Tunnels Using Ray-Tracing Simulation.

2026/08/12

Conference Oda and Enomoto (M2) presented at APWCS 2026 (Seoul). Topics: Numerical Assessment of Quiet-Zone Formation in a Phantom-Free BAN-OTA Fading Emulator Using Vivaldi Scatterer Antennas, and EMF Compliance Boundary Assessment Based on Near-Field Power Density for Airy Beam Antennas.

2026/08/08

Journal Paper accepted in IEEE Transactions on Electromagnetic Compatibility: A Comprehensive Electromagnetic and Thermal Modeling Framework for Highly Focused Millimeter-Wave Beam Exposure on Rat Dorsal Skin. [DOI]

2026/07/16

Conference Enomoto (M2) presented at EMCJ Workshop @ Tokyo. Topic: EMF Compliance Boundary Assessment Based on Near-Field Power Density for Airy Beam Antennas.

2026/06/22

Conference Goto (M1) presented at BioEM 2026 (Cairns). Topic: Field Reconstruction for Power Density Assessment on Curved Surfaces for EMF Exposure in the FR3 Band.

2026/06/01

Conference Sakai (M1) presented at MICT Workshop @ Yokosuka Research Park (YRP). Topic: Posture change estimation in indoor NLOS environments for elderly fall monitoring.

2026/04/22

Conference Xu and Li (D1) presented at EuCAP 2026 (Dublin). Topics: Sionna ray-tracing-driven RF-EMF analysis in FR3 mmWave LOS scenarios, and RF-EMF / EIRP trade-off in 6G handset multi-antenna systems at FR1 and FR3 bands.

2026/03/13

Conference Sakai (B4) presented at IEICE General Conference @ Kyushu Sangyo University. Topic: A study on the verification of room electromagnetics theory for elderly fall monitoring.

2026/03/06

Conference Xu (D1) presented at RCS Workshop @ Tokyo University of Science. Topic: Precoding optimization for FR3 downlink considering RF-EMF exposure based on Sionna ray-tracing.

2025/12/24

Journal Paper accepted in IEICE Transactions C: Dosimetry estimation of 60 GHz millimeter-wave exposure for thermal physiological threshold evaluation.

2025/12/16

Journal Paper accepted in Physics in Medicine and Biology: Intercomparisons of computed epithelial/absorbed power density and temperature rise in anatomical human face models under localized exposures at 10 GHz and 30 GHz. [DOI]

2025/11/26

Conference Utsukawa, Ueda, and Zhou (M1) presented at ICETC 2025 (Osaka). Topics: Weibull distribution-based MMW skin temperature approximation, averaging of absorbed power density for forearm skin exposure, and BER enhancement under SAR constraints for implanted biomedical telemetry.

2025/11/01

Journal Paper accepted in IEEE Journal of Microwaves: Model Variability in Assessment of Human Exposure to Radio-Frequency Fields. [DOI]

2025/10/30

Conference Oda (M1) presented at ISAP 2025 (Fukuoka). Topic: Over-the-Air testing of BAN diversity antennas in 4G downlink frequency band.

2025/09/02

Conference Ueda (M1) presented at the 17th Bioelectromagnetics Symposium @ NICT Nihonbashi. Topic: Weibull distribution application and accuracy evaluation for thermal response estimation in MMW exposure.

2025/08/21

Conference Utsukawa and Ueda (M1) presented at AP-RASC 2025 (Sydney). Topics: LF-band underground wireless communication characterization using PCA, and ML-based thermal parameter estimation in MMW exposure.