[1]Chong Han and Ian F Akyildiz. Distance-aware bandwidth-adaptive resource allocation for wireless systems in the terahertz band. IEEE Transactions on Terahertz Science and Technology, 6(4):541–553, 2016.
[2]Shu Sun, Theodore S Rappaport, Mansoor Shafi, Pan Tang, Jianhua Zhang, and Peter J Smith. Propagation models and performance evaluation for 5g millimeter-wave bands. IEEE Transactions on Vehicular Technology, 67(9):8422– 8439, 2018.
[3]P Jeyakumar, Elangeeran Malar, Neeraj Idnani, and P Muthuchidambaranathan. Large antenna array with hybrid beamforming system for 5g outdoor mobile broadband communication deployments. Wireless Personal Communi- cations, 120(3):2001–2027, 2021.
[4]Linglong Dai, Jingbo Tan, Zhi Chen, and H Vincent Poor. Delay-phase precoding for wideband thz massive mimo. IEEE Transactions on Wireless Communications, 21(9):7271–7286, 2022.
[5]Chong Han, Yongzhi Wu, Zhi Chen, and Xudong Wang. Terahertz communications (teracom): Challenges and impact on 6g wireless systems. arXiv preprint arXiv:1912.06040, 2019.
[6]Nhan Thanh Nguyen, Mengyuan Ma, Ortal Lavi, Nir Shlezinger, Yonina C Eldar, A Lee Swindlehurst, and Markku Juntti. Deep unfolding hybrid beamforming designs for thz massive mimo systems. IEEE Transactions on Signal Processing, 2023.
[7]Licheng Jiao, Yilin Shao, Long Sun, Fang Liu, Shuyuan Yang, Wenping Ma, Lingling Li, Xu Liu, Biao Hou, Xiangrong Zhang, et al. Advanced deep learning models for 6g: Overview, opportunities and challenges. IEEE Access, 2024.
[8]Ranjitham Govindasamy, Sathish Kumar Nagarajan, Jamuna Rani Muthu, and Purushothaman Annadurai. Deep optimized hybrid beamforming intelligent reflecting surface assisted um-mimo thz communication for 6g broad band connectivity. Telecommunication Systems, pages 1–16, 2024.
[9]Kaien Zhang, Yan Zhang, Cheng-Xiang Wang, Xiping Wu, and Chuan Du. A non-reciprocal channel model for thz asymmetric massive mimo systems. IEEE Transactions on Wireless Communications, 2023.
[10]Yang Wang, Chuang Yang, and Mugen Peng. Hybrid precoding with low-resolution pss for wideband terahertz communication systems in the face of beam squint. arXiv preprint arXiv:2406.16303, 2024.
[11]Mostafa Zaman Chowdhury, Md Shahjalal, Shakil Ahmed, and Yeong Min Jang. 6g wireless communication sys- tems: Applications, requirements, technologies, challenges, and research directions. IEEE Open Journal of the Communications Society, 1:957–975, 2020.
[12]Chong Han, Longfei Yan, and Jinhong Yuan. Hybrid beamforming for terahertz wireless communications: Chal- lenges, architectures, and open problems. IEEE Wireless Communications, 28(4):198–204, 2021.
[13]Yanran Sun, Chuang Yang, and Mugen Peng. Subarray-based hybrid-field channel estimation for terahertz wideband um-mimo systems without prior location knowledge. IEEE Transactions on Vehicular Technology, 2023.
[14]Ibrahim Yildirim, Asil Koc, Ertugrul Basar, and Tho Le-Ngoc. Ris-aided angular-based hybrid beamforming design in mmwave massive mimo systems. In GLOBECOM 2022-2022 IEEE Global Communications Conference, pages 5267–5272. IEEE, 2022.
[15]Ahmet M Elbir, Kumar Vijay Mishra, and Symeon Chatzinotas. Terahertz-band joint ultra-massive mimo radar- communications: Model-based and model-free hybrid beamforming. IEEE Journal of Selected Topics in Signal Processing, 15(6):1468–1483, 2021.
[16]H.M. Abidur Rahman, Foyjul Hasan, Md. Mizanul Hoque, Md. Mizanur Rahman, and Md. Waliur Rahman. Mc- cdma system for multi-user using walsh code on rayleigh fading channel. In 2021 5th International Conference on Electrical Engineering and Information Communication Technology (ICEEICT), pages 1–5, 2021.
[17]Xianru Liu, Xueming Li, Shu Cao, Qingyong Deng, Rong Ran, Kien Nguyen, and Pei Tingrui. Hybrid precoding for massive mmwave mimo systems. IEEE Access, 7:33577–33586, 2019.
[18]Gerard J Foschini and Michael J Gans. On limits of wireless communications in a fading environment when using multiple antennas. Wireless personal communications, 6:311–335, 1998.
[19]Thomas L Marzetta, Erik G Larsson, and Thorkild B Hansen. Massive mimo and beyond. In Information Theoretic Perspectives on 5G Systems and Beyond. Cambridge University Press, 2020.
[20]Syed Junaid Nawaz, Shree Krishna Sharma, Babar Mansoor, Mohammad N Patwary, and Noor M Khan. Non- coherent and backscatter communications: Enabling ultra-massive connectivity in 6g wireless networks. IEEE Access, 9:38144–38186, 2021.
[21]Theodore S Rappaport, Yunchou Xing, Ojas Kanhere, Shihao Ju, Arjuna Madanayake, Soumyajit Mandal, Ahmed Alkhateeb, and Georgios C Trichopoulos. Wireless communications and applications above 100 ghz: Opportunities and challenges for 6g and beyond. IEEE access, 7:78729–78757, 2019.
[22]Simon Tarboush, Hadi Sarieddeen, Hui Chen, Mohamed Habib Loukil, Hakim Jemaa, Mohamed-Slim Alouini, and Tareq Y Al-Naffouri. Teramimo: A channel simulator for wideband ultra-massive mimo terahertz communications. IEEE Transactions on Vehicular Technology, 70(12):12325–12341, 2021.
[23]Rui Xu, Steven Gao, Benito Sanz Izquierdo, Chao Gu, Patrick Reynaert, Alexander Standaert, Gregory J Gibbons, Wolfgang  Bo¨sch,  Michael  Ernst  Gadringer,  and  Dong  Li.   A  review  of  broadband  low-cost  and  high-gain  low- terahertz antennas for wireless communications applications. Ieee Access, 8:57615–57629, 2020.
[24]Konstantinos Dovelos, Michail Matthaiou, Hien Quoc Ngo, and Boris Bellalta. Channel estimation and hybrid combining for wideband terahertz massive mimo systems. IEEE Journal on selected Areas in communications, 39(6):1604–1620, 2021.
[25]Boyu Ning, Zhongbao Tian, Weidong Mei, Zhi Chen, Chong Han, Shaoqian Li, Jinhong Yuan, and Rui Zhang. Beamforming technologies for ultra-massive mimo in terahertz communications. IEEE Open Journal of the Com- munications Society, 4:614–658, 2023.
[26]Hang Yuan, Nan Yang, Kai Yang, Chong Han, and Jianping An. Hybrid beamforming for terahertz multi-carrier systems over frequency selective fading. IEEE Transactions on Communications, 68(10):6186–6199, 2020.
[27]Akram Shafie, Nan Yang, Chong Han, Josep Miquel Jornet, Markku Juntti, and Thomas Ku¨rner. Terahertz commu- nications for 6g and beyond wireless networks: Challenges, key advancements, and opportunities. IEEE Network, 37(3):162–169, 2022.
[28]Cen Lin and Geoffrey Ye Li. Adaptive beamforming with resource allocation for distance-aware multi-user indoor terahertz communications. IEEE Transactions on Communications, 63(8):2985–2995, 2015.
[29]Ku¨rs¸at Tekbıyık, Ali Rıza Ekti, Gu¨nes¸ Karabulut Kurt, and Ali Go¨rc¸in.  Terahertz band communication systems: Challenges, novelties and standardization efforts. Physical Communication, 35:100700, 2019.
[30]Ling Lyu, Xinping Guan, Nan Cheng, and Xuemin Sherman Shen. Advanced Wireless Technologies for Industrial Network Systems. Springer, 2023.
[31]Lu Zhang, Zefeng Chen, Hongqi Zhang, Zuomin Yang, Yixin Wu, Xiongbin Yu, Xiaodan Pang, Vjaceslavs Bobrovs, Oskars Ozolins, and Xianbin Yu. Hybrid fiber–thz fronthaul supporting up to 16384-qam-ofdm with the delta-sigma modulation. Optics letters, 47(17):4307–4310, 2022.
[32]Haijun Zhang, Haisen Zhang, Wei Liu, Keping Long, Jiangbo Dong, and Victor CM Leung. Energy efficient user clustering, hybrid precoding and power optimization in terahertz mimo-noma systems. IEEE Journal on selected areas in communications, 38(9):2074–2085, 2020.
[33]Weizheng Zhang, Wei Wang, and Wei Zhang. Channel training for ris-aided indoor terahertz mimo systems. IEEE Wireless Communications Letters, 12(8):1384–1388, 2023.
[34]Joa˜o Pedro  Pavia,  Vasco Velez,  Renato  Ferreira,  Nuno  Souto,  Marco Ribeiro,  Joa˜o Silva,  and  Rui Dinis.   Low complexity hybrid precoding designs for multiuser mmwave/thz ultra massive mimo systems. Sensors, 21(18):6054, 2021.
[35]P Jeyakumar, Arvind Ramesh, S Srinitha, V Vishnu, and P Muthuchidambaranathan. Wideband hybrid precoding techniques for thz massive mimo in 6g indoor network deployment. Telecommunication Systems, 79(1):71–82, 2022.
[36]Seungnyun Kim, Anho Lee, Hyungyu Ju, Khoa Anh Ngo, Jihoon Moon, and Byonghyo Shim. Transformer-based channel parameter acquisition for terahertz ultra-massive mimo systems. IEEE Transactions on Vehicular Technol- ogy, 72(11):15127–15132, 2023.
[37]Hadi Sarieddeen, Mohamed-Slim Alouini, and Tareq Y Al-Naffouri. An overview of signal processing techniques for terahertz communications. Proceedings of the IEEE, 109(10):1628–1665, 2021.
[38]Muhammad Zubair, Abdul Jabbar, Farooq A Tahir, Jalil ur Rehman Kazim, Masood Ur Rehman, Muhammad Imran, Bo Liu, and Qammer H Abbasi. A high-performance sub-thz planar antenna array for thz sensing and imaging applications. Scientific Reports, 14(1):17030, 2024.
[39]Sanjiv Kumar and PK Gupta. Performance analysis of rayleigh and rician fading channel models using matlab simulation. 2013.
[40]Andrew J Viterbi and Jim K Omura. Principles of digital communication and coding. Courier Corporation, 2009.
[41]Theodore S Rappaport. Wireless communications: principles and practice. Cambridge University Press, 2024.
[42]Annu Singh and Sunil Joshi. A survey on hybrid beamforming in mmwave massive mimo system. J Sci Res, 65(1):201–213, 2021.
[43]O Simeone, U Spagnolini, and Y Bar-Ness.   Linear and non-linear precoding/decoding for mimo systems using the fading correlation at the transmitter. In 2003 4th IEEE Workshop on Signal Processing Advances in Wireless Communications-SPAWC 2003 (IEEE Cat. No. 03EX689), pages 6–10. IEEE, 2003.
[44]Zhipeng Lin, Tiejun Lv, Wei Ni, J Andrew Zhang, and Ren Ping Liu. Tensor-based multi-dimensional wideband channel estimation for mmwave hybrid cylindrical arrays. IEEE Transactions on Communications, 68(12):7608– 7622, 2020.
[45]Zhenyu Xiao, Zhu Han, Arumugam Nallanathan, Octavia A Dobre, Bruno Clerckx, Jinho Choi, Chong He, and Wen Tong. Antenna array enabled space/air/ground communications and networking for 6g. IEEE Journal on Selected Areas in Communications, 40(10):2773–2804, 2022.
[46]Shahid Hamid, Shakti Raj Chopra, Akhil Gupta, Sudeep Tanwar, Bogdan Cristian Florea, Dragos Daniel Taralunga, Osama Alfarraj, and Ahmed M Shehata. Hybrid beamforming in massive mimo for next-generation communication technology. Sensors, 23(16):7294, 2023.
[47]Foad Sohrabi and Wei Yu. Hybrid analog and digital beamforming for mmwave ofdm large-scale antenna arrays. IEEE Journal on Selected Areas in Communications, 35(7):1432–1443, 2017.
[48]Ali Raed Faisal, Fazirulhisyam Hashim, Nor Kamariah Noordin, Mahamod Ismail, and Abbas Jamalipour. Efficient beamforming and spectral efficiency maximization in a joint transmission system using an adaptive particle swarm optimization algorithm. Applied Soft Computing, 49:759–769, 2016.
[49]Feifei Gao, Bolei Wang, Chengwen Xing, Jianping An, and Geoffrey Ye Li. Wideband beamforming for hybrid massive mimo terahertz communications. IEEE Journal on Selected Areas in Communications, 39(6):1725–1740.