SCOPE AND TOPICS OF THIS WORKSHOP

Despite the successful roll-out of fifth-generation (5G) wireless networks at frequencies spanning up to the millimeter-wave (mmWave) spectrum, the quest for increasing data rates persists. Towards this end, higher frequencies over the terahertz (THz) band (0.1-10 THz) will be central to ubiquitous wireless communications in beyond-5G or sixth generation (6G) networks. In particular, THz frequencies promise to support ample spectrum, above hundred Giga-bit-per-second (Gbps) data rates, massive connectivity, denser networks, and highly secure transmissions. Multiple leading 6G initiatives probe THz communications, including the "6Genesis Flagship Program (6GFP)", the European Commission’s H2020 ICT-09 THz Project Cluster, and the “Broadband Communications and New Networks" in China. In the US, THz technology was identified in 2014 by the US Defense Advanced Research Projects Agency (DARPA) as one of the four major research areas that could have an impact on society larger than that of the Internet itself. Similarly, the US National Science Foundation and the Semiconductor Research Consortium (SRC) also identify THz as one of the four essential components of the next IT revolution.

The THz spectrum is sandwiched between the mmWave and the far-infrared (IR) bands and has, for long, been the least investigated electromagnetic spectrum. However, recent advancements in THz signal generation, modulation, and radiation methods are closing the so-called THz gap. The THz band offers much higher transmission bandwidths compared to the mmWave band and more favorable propagation settings compared to the IR band; it can thus complement the conventional radio-frequency spectrum. Several unique challenges, however, have still to be addressed to achieve the full potential of THz communications. For instance, THz transmissions incur very high propagation losses, which significantly limit the communication distances. This may not be an issue for short-range links, such as in the case of intra-machine communications envisioned in industrial IoT (IIoT) scenarios, whereas aerial, satellite, and vehicular networks, which would benefit from high-speed and low-latency THz connections, are expected to be significantly affected by propagation losses. Furthermore, the coexistence of mmWave, sub 6GHz, and optical wireless communications and networking is not yet fully understood. THz communications will be complemented by enablers at both the infrastructure and algorithmic levels. At the infrastructure level, emerging beyond-5G technologies, such as reconfigurable intelligent surfaces, ultra-massive MIMO configurations, and integrated access and backhaul, can boost the gains of THz communications. At the algorithmic level, novel signal processing techniques and networking protocols can get around the THz quasi-optical propagation characteristics to enable seamless connectivity. Efficient THz baseband signal processing can further reduce the gap between the huge available bandwidths and the limited state-of-the-art sampling speeds.

In this workshop, the covered topics include but are not limited to THz transceivers, antennas and antenna arrays; information theoretic analysis of THz communication systems, THz channel modeling, estimation and equalization techniques; ultra-broadband modulation and waveform design; beamforming, precoding and space-time coding schemes; MAC design and interference management; relaying and routing in ultra-broadband networks; system-level modeling and experimental platforms and demonstrations.

RATIONALE

The way in which today’s society creates, shares and consumes information has resulted in an unprecedented increase in the total number of interconnected devices as well as in the data rates at which these devices transmit information. As millimeter wave communication becomes an industry standard, there is a need to explore new wireless technologies beyond 300 GHz. Thanks to major breakthroughs in novel THz devices, it is now the right time for the wireless communication community to enter the field.

THz technology has been identified by DARPA as one of the four major research areas that could eventually have an impact on our society larger than that of the Internet itself. Similarly, the development of a new communication and networking technology to support networks with “billions of connected nanosystems” has been identified as one of the four essential components of the next IT revolution by the Semiconductor Research Consortium (SRC) and the US National Science Foundation (NSF), who are now supporting multiple large-scale research initiatives in THz communications. More recently, THz communications has been identified by IEEE ComSoc as one of the nine communication technology trends to follow. Recently, IEEE ComSoc Radio Communications Committee (RCC) Special Interest Group (SIG) on THz communications is established, led by the workshop organizing team.

Targeted attendees of the workshop include but are not limited to academic researchers in the field of 5G and beyond, millimeter waves, optical wireless communications, as well as inter-disciplinary areas of nanotechnologies, antennas and propagation, and material sciences. Also, this workshop is expected to attract attendees from the funding agencies, industrial partners, and standardization groups, who have strong interests in future-generation wireless systems.

KEYNOTES

Keynote 1: Sub-THz Role in Cellular Evolution

Speaker: Mark Cudak, Department Head, Radio Interface and Standards, Nokia Standards

Abstract: Sub-THz is an exciting new opportunity for wireless communication and one that is being actively pursued in many of the world’s 6G forums. This talk will discuss the variety of spectrum that industry is considering for 6G and the unique role that that sub-THz plays in cellular evolution. The talk will further discuss the regulatory status in the U.S. and some of the technical challenges that remain to be resolved.

Biography: Mark Cudak is a Nokia Bell Labs Fellow and a Department Head in the Radio Interface and Access Group with Nokia Standards in Chicago. He leads a team focusing on cellular air-interface evolution including 5G and 6G. He and his team are active in the 3GPP and Open RAN standards working on physical layer topics including system performance, link performance, transceiver architectures, network architectures and deployment scenarios. Mark and his team at Nokia have also been very active in sub-THz research. Mark serves as chairmen of the mmWave Coalition which is a is a group of 22 innovative companies united in the objective of removing regulatory barriers to technologies using frequencies ranging from 95 GHz to 450 GHz. He also servers as co-chair for the ITU WP 5D drafting group on the feasibility above 100 GHz. Prior to joining Nokia in 2011, Mark was with Motorola for 20 years where he worked on a variety of wireless data systems including APCO 25 and cellular standards from 2G to 4G. Mark has over 40 issued patents, was a Motorola Dan Noble Fellow and holds a M.S. in electrical engineering from the University of Illinois at Urbana-Champaign.

Keynote 2: Exploring the Universe at Terahertz Frequencies: From Antarctica to the Stars

Speaker: Jose V. Siles, NASA Jet Propulsion Laboratory, California Institute of Technology

Abstract: Have you ever wondered how the Solar System was formed? And the stars and planets? Do you think there could be life elsewhere in the Solar System? If so, maybe you have also wondered how one can find answers to all these questions. These are the kind of questions astrophysicists ask themselves to come up with a (simple) idea or hypothesis that eventually leads to a scientific mission and new discoveries. A simple scientific question often leads to a technology idea or concept that evolves until a mature cutting-edge scientific instrument (e.g., camera) is ready to explore the Universe and provide answers to these questions. Antarctica is one of the best places to look at the sky. This talk will explain this process through and actual exploration journey to Antarctica, to build and launch, from the bottom of the world, surrounded by ice and extreme cold, large telescopes that operate at terahertz frequencies to study our Galaxy and other galaxies from the stratosphere. The talk will also discuss new enhancements in preparation for future far-infrared balloon missions, such as ASTHROS. The Astrophysics Stratospheric Telescope for High-spectral Resolution Observations at Submillimeter-wavelengths, ASTHROS, is a 2.5-m (SOFIA-like size) balloon-borne observatory that will make the first detailed spectrally-resolved high spatial resolution 3D map of ionized gas in Galactic and extragalactic star forming regions via simultaneous observations of the 122µm (2.459 THz) & 205µm (1.461 THz) fine structure lines of ionized nitrogen. Technical details of the hardware and fly mission of ASTHROS will be provided, highlighting the challenges for terahertz space sensing and signal processing community.

Biography: Dr. Jose V. Siles received the M.Sc. and Ph.D. degrees in telecommunication and electrical engineering from the Technical University of Madrid, Madrid, Spain, in 2003 and 2008, respectively. In 2002, he joined the Signal, Systems and Radiocommunications Department of the Technical University of Madrid as a Research Fellow supported by a fellowship from the Spanish Ministry of Education, working on the physics-based modeling of semiconductor devices for terahertz applications. Part of this research was performed at the University of Rome “Tor Vergata”, Italy, and at the Observatory of Paris-LERMA, France. In 2008 and 2010, he was a Post-Doctoral Fellow with the Observatory of Paris-LERMA participating in several programs funded by the CNES, the European Space Agency and the European Commission. In September 2010, he joined the Submillimeter-Wave Advanced Technology Group at NASA's Jet Propulsion Laboratory, California Institute of Technology, Pasadena CA, USA, as a Fulbright Post-Doctoral Fellow. He is an experienced terahertz component and circuit designer, having designed and tested terahertz sources and mixer circuits up to 3 THz, all of them exhibiting world-record performances. His current research interests involve the design, development and test of ultra-compact solid-state power-combined multiplied local oscillator sources and receivers for high resolution multi-pixel heterodyne cameras at submillimeter-wave and terahertz frequencies for radio-astronomy, planetary science, Earth science, communications, and radar applications. He is currently the Project Manager and technical lead of the "The Astrophysics Stratospheric 2.5-m Telescope for High Spectral Resolution Observations at Submillimeter-wavelengths" (ASTHROS) NASA balloon mission, scheduled to launch from Antarctica on December 2023.

PROGRAM

## PART 1: IN-PERSON, Time: 08:00-09:30 BRT, Room: Oceania VII

8:00 – 8:10 BRT: Welcome message

8:10 – 8:40 BRT: Paper: An Optimization-Based Wide-Beam Design for THz MIMO. Boyu Ning and Zhi Chen (University of Electronic Science and Technology of China, China)

## PART 2: Virtual LIVE, Time: 11:00 – 13:00 BRT, Zoom (link will be provided separately to the registered participants)

11:00 – 12:00 BRT Keynote 1: Sub-THz Role in Cellular Evolution by Mark Cudak, Nokia Standards

12:00 – 13:00 BRT Keynote 2: Exploring the Universe at Terahertz Frequencies: From Antarctica to the Stars by Jose V. Siles, NASA Jet Propulsion Laboratory, California Institute of Technology

13:00 – 13:10 BRT Closing remarks

# PART 3: Virtual, PRE-RECORDED

(13 technical papers and video presentations)

(Access provided to the registered participants through the Globecom 2022 virtual platform)

------HIGHER LAYERS IN THZ NETWORKS------

Altitude-adaptive Modulation for Covert and Anti-jamming in Terahertz UAV Communications

Weijun Gao and Chong Han (Shanghai Jiao Tong University, China); Zhi Chen (University of Electronic Science and Technology of China, China)

Adaptive Beamwidth Design for High-mobility Terahertz Joint Radar and Communication Systems

Sha Xie, Lingxiang Li, Zhi Chen and Shaoqian Li (University of Electronic Science and Technology of China, China)

Distance Estimation Based on Molecular Absorption at THz Frequencies

Janne Lehtomäki (University of Oulu, Finland); Kenta Umebayashi (Tokyo University of Agriculture and Technology, Japan); Ahmed Al-Tahmeesschi (University of Helsinki, Finland); Markku Juntti (University of Oulu, Finland)

------THZ COMMUNICATION SYSTEMS------

Baseband Phase Noise Modeling and Analysis for 140GHz THz DFT-s-OFDM System

Hyungsik Han, Jaebum Park and Jungmin Kim (Samsung Electronics, Korea (South)); Kitaek Bae (Samsung Electronics Co., Ltd, Korea (South)); Ilju Na (Samsung Electronics, Korea (South))

Beam Squint Effects in THz Communications with UPA and ULA: Comparison and Hybrid Beamforming Design

Nhan Thanh Nguyen, Joonas Kokkoniemi and Markku Juntti (University of Oulu, Finland)

Alternating Optimization Based Hybrid Beamforming in Terahertz Widely-spaced Multi-subarray Systems

Heyin Shen, Longfei Yan and Chong Han (Shanghai Jiao Tong University, China); Hao Liu (Nokia Shanghai Bell, China)

Mitigation of Phase Noise-induced ICI at THz bands using CP-OFDM PT-RS signals

Javier Lorca (InterDigital, UK); Ahmet Serdar Tan (InterDigital Europe, United Kingdom (Great Britain)); Arman Shojaeifard (InterDigital, United Kingdom (Great Britain))

Phase-Noise-Resisting Modulation and Demodulation for Sub-Terahertz Communications

Changming Zhang, Shengnan Dai, Xuemin Li, Kai Zhang and Hua Wang (Zhejiang Lab, China); Xianbin Yu (Zhejiang University, China)

------THZ CHANNELS AND TESTBEDS------

Symbolic Representation of RIS-Assisted FSO Channels

Alain Richard Ndjiongue and Telex M. N. Ngatched (Memorial University of Newfoundland, Canada); Octavia A. Dobre (Memorial University, Canada); Harald Haas (The University of Strathclyde, United Kingdom (Great Britain))

A Post-Correction Method for Terahertz Nonlinear Distortion with Dual-Band Carrier Aggregation

Mengyao Zhang, Jian Liu and Dijie Zhu (University of Electronic Science and Technology of China, China); Xin Quan (Southwest Jiaotong University, China); Qiang Xu, Ying Liu and Zhi Chen (University of Electronic Science and Technology of China, China)

Sub-THz Wireless Channel Field Measurements: A Study at 140 GHz

Richard Tanski, D'Andre Seymour and Bryan Heredia (Qualcomm Technologies Inc., USA); Christopher Slezak (Qualcomm Incorporated & New York University, USA); Vasanthan Raghavan (Qualcomm, Inc., USA); Ozge Hizir Koymen (Qualcomm, USA); Vito Salluce and Amit Mathur (Qualcomm Technologies Inc., USA); Arumugam Kannan (Qualcomm Technologies Incorporated, USA)

Path Towards Tbps Communications: LoS MIMO Theory, Simulation and Measurement Analysis

Sandy Saab, Dongjoo Kim, Shadi Abu-Surra and Gary Xu (Samsung Research America, USA); Jianzhong Zhang (Samsung, USA)

An Optimization-Based Wide-Beam Design for THz MIMO

Boyu Ning and Zhi Chen (University of Electronic Science and Technology of China, China)

GENERAL CO-CHAIRS

Sergi Abadal, Universitat Politecnica de Catalunya, Spain

Guillaume Ducournau. University of Lille, France

Hina Tabassum, York University, Canada

TPC CO-CHAIRS

Shuai Nie, University of Nebraska Lincoln, USA

Vitaly Petrov, Northeastern University, USA

Xianbin Yu, Zhejiang University, China

STEERING COMMITTEE

Ian F. Akyildiz, Truva Inc, USA

Wolfgang Gerstacker, Friedrich-Alexander University of Erlangen-Nuremberg, Germany

Chong Han, Shanghai Jiao Tong University, China

Josep M. Jornet, Northeastern University, USA

TPC MEMBERS

• Mark Cudak, Nokia, USA

• Qammer H Abbasi University of Glasgow, UK

• Yi Chen, Huawei Technologies, China

• Zhi Chen, University of Electronic Science and Technology of China, China

• Gabor Fodor, Ericsson Research and KTH Royal Institute of Technology, Sweden

• Onur Günlü, University of Siegen, Germany

• Kari Hooli, Nokia, Finland

• Markku Juntti, University of Oulu, Finland

• Tetsuya Kawanishi, Waseda University, Japan

• Wilhelm Keusgen, Technische Universität Berlin, Germany

• Filip Lemic, University of Antwerpen, IMEC, Belgium

• Christos Liaskos, Institute of Computer Science, Foundation of Research and Technology, Hellas, Greece

• Xiaodan Pang, KTH Royal Institute of Technology, Sweden

• Michele Polese, Northeastern University, USA

• Francesco Restuccia, Northeastern University, USA

• Arjun Singh, SUNY Polytechnic Institute, USA

• Ho-Jin Song, POSTECH, Korea

• Dr. Haijian Sun. University of Wisconsin-Whitewater, USA

• Shu Sun, Shanghai Jiao Tong University, China

• Aimin Tang, Shanghai Jiao Tong University, China

• Mikko Valkama, Tampere University, Finland

• Yunchou Xing, Nokia, USA

• Nan Yang, The Australian National University, Australia

• Lei Zhang, Southeast University, China

CALL FOR PAPERS

We seek original completed and unpublished work not currently under review by any other journal/magazine/conference. Topics of interest include, but are not limited to:

• Transceivers for Terahertz communications

• Antenna and massive antenna arrays for Terahertz communications

• Information theoretic analysis of Terahertz communications

• Channel models for Terahertz communications

• Channel estimation techniques for Terahertz communications

• Ultra-broadband modulation and waveform design for Terahertz communications

• Beamforming, precoding and space-time coding schemes for Terahertz communications

• MAC layer design for Terahertz communications

• Interference management for Terahertz communications

• Relaying and routing in Terahertz communications

• System-level modeling and experimental demonstrations for Terahertz communications

• Coexistence of Terahertz with millimeter wave and sub-6GHz transmissions

• Terahertz for space communications

• Terahertz for nano-networks

• Terahertz for industrial IoT

IMPORTANT DATES

• Paper submission deadline: July 15, 2022 August 7, 2022

• Notification of acceptance: September 15, 2022

• Camera-ready papers: October 1, 2022

PAPER SUBMISSION

The workshop accepts only novel, previously unpublished papers. The page length limit for all initial submissions for review is SIX (6) printed pages (10-point font) and must be written in English. All final submissions of accepted papers must be written in English with a maximum paper length of six (6) printed pages (10-point font) including figures. No more than one (1) additional printed page (10-point font) may be included in final submissions and the extra page (the 7th page) will incur an over length page charge of USD100. For more information, please see IEEE GC 2022 official website: https://globecom2022.ieee-globecom.org/authors/call-workshop-papers

EDAS submission link: https://edas.info/newPaper.php?c=29683