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Proximal Policy Optimization-based Transmit Beamforming and Phase-shift Design in an IRS-aided ISAC System for the THz Band

Xiangnan Liu, Haijun Zhang, Keping Long, Mingyu Zhou, Yonghui Li, H. Vincent Poor
2022 IEEE Journal on Selected Areas in Communications  

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2022 pre-print arXiv:2203.10819v1 fatcat:vbudutqe4jejbpir7k4vbidfma
In this paper, an IRS-aided integrated sensing and communications (ISAC) system operating in the terahertz (THz) band is proposed to maximize the system capacity.  ...  Then the joint optimization of transmit beamforming and phase-shift design is achieved by gradient-based, primal-dual proximal policy optimization (PPO) in the multi-user multiple-input single-output (  ...  In particular, transmit beamforming and phase-shift design in an IRS-aided device-based ISAC system with multiple users are studied.  ... 
doi:10.1109/jsac.2022.3158696 fatcat:fwrhh3ex7zeshmcn7cgg2qox5q
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Xiangnan Liu, Haijun Zhang, Keping Long, Mingyu Zhou, Yonghui Li, H. Vincent Poor. "Proximal Policy Optimization-based Transmit Beamforming and Phase-shift Design in an IRS-aided ISAC System for the THz Band." IEEE Journal on Selected Areas in Communications 40.7 (2022) 1-1

Terahertz-Band Integrated Sensing and Communications: Challenges and Opportunities [article]

Ahmet M. Elbir, Kumar Vijay Mishra, Symeon Chatzinotas, Mehdi Bennis
2022 arXiv   pre-print

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However, ISAC at THz-band entails several design challenges such as beam split, range-dependent bandwidth, near-field beamforming, and distinct channel model.  ...  In particular, it provides an overview of antenna and array design, hybrid beamforming, integration with reflecting surfaces and data-driven techniques such as machine learning.  ...  For this purpose, a proximal policy optimization (PPO) approach with reinforcement learning (RL) is proposed in [9] , wherein the transmitter and IRS parameters are jointly optimized for THz-ISAC, wherein  ... 
arXiv:2208.01235v1 fatcat:l7c7x4fl4far3j757gxu2gt62q
Citation

Ahmet M. Elbir, Kumar Vijay Mishra, Symeon Chatzinotas, Mehdi Bennis. "Terahertz-Band Integrated Sensing and Communications: Challenges and Opportunities." arXiv (2022)

Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G [article]

Yuanwei Liu and Shuowen Zhang and Xidong Mu and Zhiguo Ding and Robert Schober and Naofal Al-Dhahir and Ekram Hossain and Xuemin Shen
2022 arXiv   pre-print

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2021 pre-print
arXiv:2108.04561v1 fatcat:ka3hbk74mjbsdkatnqgsibv2km
Furthermore, we discuss advanced mathematical tools for facilitating the design of NOMA communication systems, including conventional optimization approaches and new machine learning techniques.  ...  Next, we propose a unified framework for NGMA based on multiple antennas and NOMA, where both downlink and uplink transmissions are considered, thus setting the foundation for this emerging research area  ...  The authors of [217] proposed a DDPG-based algorithm to jointly optimize the NOMA user partition, RIS phase shift, and NOMA power allocation policy to maximize the sum rate.  ... 
arXiv:2108.04561v2 fatcat:yy2wmlweffft5b2wzefkrde6za
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Yuanwei Liu and Shuowen Zhang and Xidong Mu and Zhiguo Ding and Robert Schober and Naofal Al-Dhahir and Ekram Hossain and Xuemin Shen. "Evolution of NOMA Toward Next Generation Multiple Access (NGMA) for 6G." arXiv (2022)

6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities [article]

Md. Noor-A-Rahim, Zilong Liu, Haeyoung Lee, M. Omar Khyam, Jianhua He, Dirk Pesch, Klaus Moessner, Walid Saad, H. Vincent Poor
2022 arXiv   pre-print

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2020 pre-print
arXiv:2012.07753v1 fatcat:iklkoak3j5eyjiysj5tfkmhcum
Aiming for truly intelligent transportation systems, we envision that machine learning will play an instrumental role for advanced vehicular communication and networking.  ...  To this end, we provide an overview on the recent advances of machine learning in 6G vehicular networks.  ...  An architecture for an OFDM based RadCom system has been studied in [104] with unique advantages to the radar application, such as, very high dynamic range, independence from the transmitted user data  ... 
arXiv:2012.07753v2 fatcat:u5edqsewbzgthlkgc3nooqmdo4
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Md. Noor-A-Rahim, Zilong Liu, Haeyoung Lee, M. Omar Khyam, Jianhua He, Dirk Pesch, Klaus Moessner, Walid Saad, H. Vincent Poor. "6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities." arXiv (2022)

6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities

Md. Noor-A-Rahim, Zilong Liu, Haeyoung Lee, Mohammad Omar Khyam, Jianhua He, Dirk Pesch, Klaus Moessner, Walid Saad, H. Vincent Poor
2022 Proceedings of the IEEE  

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This article provides a comprehensive overview of the scientific and technological advances that have the capability to shape future 6G vehicle-to-everything (6G-V2X) communications.  ...  An architecture for an OFDM-based RadCom system has been studied in [104] with unique advantages to the radar application, such as very high dynamic range, independence from the transmitted user data  ...  One of the main challenges in THz-assisted 6G-V2X will be the effective use of traditional cellular and new THz bands.  ... 
doi:10.1109/jproc.2022.3173031 fatcat:vo37ywop6babtmnl7nnq3kmgqa
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Citation

Md. Noor-A-Rahim, Zilong Liu, Haeyoung Lee, Mohammad Omar Khyam, Jianhua He, Dirk Pesch, Klaus Moessner, Walid Saad, H. Vincent Poor. "6G for Vehicle-to-Everything (V2X) Communications: Enabling Technologies, Challenges, and Opportunities." Proceedings of the IEEE 110.6 (2022) 712-734

6G Technology Overview - One6G White Paper [article]

One6G Association
2022 Zenodo  

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In this white paper, we give an overview of the key enabling technologies that constitute the pillars for the evolution toward 6G.  ...  6G is supposed to address the demands for consumption of mobile networking services in 2030 and beyond.  ...  There are already numerous works aimed at optimizing the parameters (amplitudes, phase shifts) of an IRS according to the desired use case.  ... 
doi:10.5281/zenodo.6630705 fatcat:rghtxgovubc5zartbe2qx4ekvm
Open Access
Citation

One6G Association. "6G Technology Overview - One6G White Paper." Zenodo (2022)