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W7: Next Generation Multiple Access (NGMA) for Future Wireless Communications - VTC2023-Spring

W7: Next Generation Multiple Access (NGMA) for Future Wireless Communications

Co-chair: Wenjuan Yu, Lancester University, UK
Co-chair: Tianwei Hou, Beijing Jiaotong University, China
Co-chair: Yuanwei Liu, Queen Mary University of London, UK
Co-chair: Naofal Al-Dhahir, University of Texas at Dallas, USA

Keynote Speaker: Kai-Kit (Kit) Wong, University College London

Abstract: Multiple access has long been the “pearls in the crown” for each generation of mobile communication networks. In the past generations, grant-based orthogonal multiple access (OMA) schemes such as Time Division Multiple Access, Frequency Division Multiple Access, Code Division Multiple Access, and Orthogonal Frequency Division Multiple Access, have been the major schemes, where each user is allocated with one orthogonal time/frequency/code resource. Now, we colleague already stand at 5G “Square” and heading towards 6G. The evolution from 5G towards 6G is expected to transfer the communication philosophy from connected people and things to connected intelligence, which brings new usage scenarios and new challenges for conventional OMA-based systems. In addition to the explosive data demand in 6G, emerging bandwidth thirsty applications (e.g., virtual reality, augmented reality), massive connectivity (e.g., Internet-of-Things networks connecting billions of machine-type devices), ubiquitous wireless coverage (e.g., space-air-ground-integrated-networks), multi-functional wireless networks (e.g., the integrations of communication, sensing, and computation), and bit-beyond transmissions (e.g., semantics/tasks/goals-oriented communications) create new challenges for multiple access. Given the limited radio resources and the stringent rate/latency/connectivity requirements, it necessitates the paradigm shift in multiple access design from grant-based OMA to non-orthogonal/massive/random/grant-free multiple access and other possible multiple access for 6G, namely Next Generation Multiple Access (NGMA). Moreover, the development of NGMA has also to be jointly considered with new enabling technologies, new spectrums, advanced artificial intelligence tools/native intelligence, etc. This workshop aims to attract novel and solid contributions on the emerging topic of NGMA for future wireless communications.

Workshop Program:

Time Topic Author
9:00-9:20 Common Rate Allocation and Power Control Optimization for RSMA-Based Visible Light Communications Jianfei Hu, Chen Sun, Jiaheng Wang, Xiqi Gao, Southeast University; Chunming Zhao, National Mobile Communications Research Lab., Southeast University
9:20-9:40 Performance Analysis of Ambient Backscatter Uplink NOMA Networks Athanasios Chrysologou, Nestor Chatzidiamantis, Aristotle University of Thessaloniki; Alexandros Boulogeorgos, University of Piraeus; George Karagiannidis, Aristotle University of Thessaloniki
9:40-10:00 Federated Learning with Unsourced Random Access Yuqing Tian, Jingze Che, Zhaoyang Zhang, Zhaohui Yang, Zhejiang University
10:00-10:10 Short coffee break
10:10-11:00 Keynote speech (Prof. Kai-Kit Wong, University College London, UK) (40 mins speech + 10 min Q&A)
11:00-11:20 Long coffee break
11:20-11:40(Virtual) Distance-Aware Subarray Selection for Terahertz Ultra-Massive MIMO Systems Yiying Liu, WU JIAO, Seungnyun Kim, Byonhyo Shim, Seoul National University
11:40-12:00(Virtual) On the Performance of NOMA-OFDM Systems with Time-Domain Interleaving Welelaw Yenieneh Lakew, Arafat Al-Dweik, Khalifa University; Mahmoud Aldababsa, Nisantasi University; Mohammed Abou-Khousa, Baker Mohammad, Khalifa University
14:00-14:20 Contextual Multi-Armed Bandit based Beam Allocation in mmWave V2X Communication under Blockage Arturo Medina Cassillas, King’s College London; Abdulkadir Kose, Abdullah Gul University; Haeyoung Lee, University of Hertfordshire; Chuan Heng Foh, University of Surrey; Bruce Leow, University Teknologi Malaysia
14:20-14:40 Rate-Splitting Multiple Access Precoding for Selective Security Sangmin Lee, Seokjun Park, Ulsan National Institute of Science and Technology; Jeonghun Park, Yonsei University; Jinseok Choi, Korea Advanced Institute of Science and Technology
14:40-15:00 Integrated-Navigation-and-Communication (INAC): A Reconfigurable Intelligent Surface (RIS)-aided Approach ZhaoQichao, Wenfei Gong, Tianwei Hou, Beijing jiaotong university; Xin Sun, Beijing Jiaotong University; Eliane Bodanese, Queen Mary University of London
15:00-15:10 Short coffee break
15:10-15:50 Keynote speech (Prof. Qiang Ni, Lancaster University, UK) (30 mins speech + 10 min Q&A)
15:50-16:20 Long coffee break
16:20-16:40(Virtual) Performance Analysis of Broadband Countermeasure Cancellation in Multiple-access Datalink Networks, Naval University of Engineering
16:40-17:00(Virtual) Performance Trade-off for NOMA-based Integrated Localization and Communication Systems lincong han, China Mobile Research Institute


Keynote Speaker Talk and Bio:

Keynote Speaker: Prof (Kit) Kai-Kit Wong, University College London

Keynote Speech Title: NGMA: Bruce Lee Inspired Fluid Antenna Multiple Access

Abstract: “Be formless … shapeless, like water!”, which were the words used by Bruce Lee, as he was revealing the philosophy of Jeet Kune Do, the martial arts system Lee founded in 1967. Many similarities can be observed in wireless communications technologies where engineers have been seeking greater flexibility in using the spectral and energy resources for improving network performance. In this talk, I will speak on a novel antenna technology, referred to as fluid antenna, that adopts a software-controlled, position-flexible antenna to operate on the best signal envelope within a given space. This talk presents some recent results on fluid antenna systems, with an emphasis on multiple access communications. The results present an optimistic outlook for massive connectivity without the need for MIMO precoding at the base station nor multiuser detection at the users that would have been required by NOMA.


(Kit) Kai-Kit Wong received the BEng, the MPhil, and the PhD degrees, all in Electrical and Electronic Engineering, from the Hong Kong University of Science and Technology (UST), Hong Kong, in 1996, 1998, and 2001, respectively. He moved to the UK after beginning his early career at the University of Hong Kong between 2001 and 2004, during which he also spent time at then AT&T Bell-Labs in Holmdel, New Jersy and Stanford University in the United States. Presently, he is Chair Professor of Wireless Communications at the Department of Electronic and Electrical Engineering, University College London (UCL), United Kingdom. He is Fellow of IEEE and IET. Since 2020, he has been the Editor-in-Chief for IEEE Wireless Communications Letters, and also the Subject Editor-in-Chief for Wireless Communications of IET Electronics Letters.


Co-chair Bios:

Wenjuan Yu:

Wenjuan Yu received her PhD degree in Communication Systems from Lancaster University, UK. She is currently a Lecturer with the School of Computing and Communications (SCC), Lancaster University. She was a Research Fellow with the 5G Innovation Centre (5GIC), Institute for Communication Systems, University of Surrey, UK, from 2018 to 2020. Prior to that, she worked as a part-time Research Officer at the School of Computer Science and Electronic Engineering, University of Essex, UK, from Aug. 2017 to Jan. 2018. Her research interests include radio resource management, low latency communications, multi-access edge computing (MEC), and machine learning for Communications. She is an Executive Editor of the Transactions on Emerging Telecommunications Technologies. She has been serving as a TPC Member for many IEEE flagship conferences such as IEEE Globecom, IEEE ICC, and IEEE VTC. She is the Conference Symposium and Workshop Officer for the Next Generation Multiple Access Emerging Technology Initiative (NGMA-ETI).


Tianwei Hou:

Tianwei Hou received Ph.D. degree from Beijing Jiaotong University (BJTU) in 2021. He was a visiting scholar at Queen Mary University of London (QMUL) (Sep. 2018- Nov. 2020). Since 2021, he has been an associate professor at BJTU. Dr. Hou’s current research interests include next generation multiple access (NGMA), reconfigurable intelligent surface (RIS) aided communications, UAV communications, multiuser multiple-input multiple-output (MIMO) communications, and stochastic geometry. He received the Exemplary Reviewer of the IEEE COMMUNICATION LETTERS and the IEEE TRANSACTIONS ON COMMUNICATIONS in 2018 and 2019. He has served as a TPC Member for many IEEE conferences, such as GLOBECOM, VTC, etc. He served as the publicity officer for the Next Generation Multiple Access Emerging Technology Initiative. He has served as the Co-Chair in workshop for VTC 2022-Fall and ISCT-2022.


Yuanwei Liu:

Yuanwei Liu received the B.S. and M.S. degrees from the Beijing University of Posts and Telecommunications in 2011 and 2014, respectively, and the PhD degree in electrical engineering from the Queen Mary University of London, U.K., in 2016. Hehas been a Senior Lecturer (Associate Professor) with the School of Electronic Engineering and Computer Science, Queen Mary University of London, where he was a Lecturer (Assistant Professor) from 2017 to 2021. Prior to that, he was with the Department of Informatics, King’s College London, from 2016 to 2017, where he was a Post-Doctoral Research Fellow. His research interests are NOMA, RIS, Integrated sensing and communications, and machine learning. He received several research awards, including Web of Science Highly Cited Researcher 2021, the 2020 IEEE ComSoc Outstanding Young Researcher Award for EMEA, the 2020 Early Achievement Award of the IEEE ComSoc Signal Processing and Computing for Communications (SPCC) Technical Committee, the 2020 Early Achievement Award of IEEE Communication Theory Technical Committee, the 2021 IEEE ComSoc Best Young Professional Award Outstanding Nominee. Yuanwei Liu received several research recognition, including listing among the World’s Top 2% Scientists by Stanford University in 2020 and 2021, 2022 AI 2000 Most Influential Scholar Honorable Mention in Internet of Things, being ranked among Top 1% scientists in the world and Top 100 in United Kingdom in the broad field of Electronics and Electrical Engineering.

Yuanwei Liu is currently a Senior Editor of IEEE Communications Letters, an Editor of the IEEE Transactions on Wireless Communications and the IEEE Transactions on Communications. He serves as the leading Guest Editor for IEEE JSAC special issue on Next Generation Multiple Access, a Guest Editor for IEEE JSTSP special issue on Signal Processing Advances for Non-Orthogonal Multiple Access in Next Generation Wireless Networks. He served as the academic Chair for the Next Generation Multiple Access Emerging Technology Initiative. He has served as the Publicity Co-Chair for VTC 2019-Fall. He serves as the chair of Special Interest Group (SIG) in SPCC Technical Committee on signal processing Techniques for next generation multiple access, the vice-chair of SIG WTC on Reconfigurable Intelligent Surfaces for Smart Radio Environments.


Naofal Al-Dhahir:

Naofal Al-Dhahir is Erik Jonsson Distinguished Professor & ECE Dept. Associate Head at UT-Dallas. He earned his PhD degree from Stanford University and was a principal member of technical staff at GE Research Center and AT&T Shannon Laboratory from 1994 to 2003. He is co-inventor of 43 issued patents, co-author of about 490 papers and co-recipient of 5 IEEE best paper awards. He is an IEEE Fellow, received 2019 IEEE SPCC technical recognition award and 2021 Qualcomm faculty award. He served as Editor-in-Chief of IEEE Transactions on Communications from Jan. 2016 to Dec. 2019. He is a Fellow of the National Academy of Inventors.


Workshop paper submissions Extended: 9 March 2023
Acceptance notification: 16 April 2023
Final paper submission due: 30 April 2023

To submit a paper to this workshop, please visit: