000			02207nam a22002777a 4500
001			47996
003			OSt
005			20250520100803.0
008			250520b |||||||| |||| 00| 0 eng d
100			_aXU Jiarui _eAuthor
245			_aLearning at the Speed of Wireless: _bOnline Real-Time Learning for AI-Enabled MIMO in NextG/ _cJiarui Xu,Shashank Jere, Yifei Song, Yi-Hung Kao, Lizhong Zheng, Lingjia Liu
260			_c2025
520			_aIntegration of artificial intelligence (AI) and machine learning (ML) into the air interface has been envisioned as a key technology for next-generation (NextG) cellular networks. At the air interface, multiple-input multiple-output (MIMO) and its variants, such as multi-user MIMO (MU-MIMO) and massive/full-dimension MIMO, have been key enablers across successive generations of cellular networks with evolving complexity and design challenges. Initiating active investigation into leveraging AI/ML tools to address these challenges for MIMO becomes a critical step toward an AI-enabled NextG air interface. At the NextG air interface, the underlying wireless environment will be extremely dynamic with operation adaptations performed on a sub-millisecond basis by MIMO operations such as MU-MIMO scheduling and rank/link adaptation. Given the enormously large number of operation adaptation possibilities, we contend that online real-time AI/ML-based approaches constitute a promising paradigm. To this end, we outline the inherent challenges and offer insights into the design of such online real-time AI/ML-based solutions for MIMO operations. An online real-time AI/ML-based method for MIMO-OFDM channel estimation is then presented, serving as a potential roadmap for developing similar techniques across various MIMO operations in NextG.
598			_aMACHINE LEARNING, NEXTG, AI, SPEED
650			_aSPEED
650			_aARTIFICIAL INTELLIGENCE
650			_aNEXTG
650			_aWIRELESS
700			_aShashank Jere
700			_aYifei Song
700			_aYi-Hung Kao
700			_aLizhong Zheng;
700			_aLingjia Liu
773			_gIEEE Communications Magazine, Volume: 63, Number: 1, Issue: 1, 2025, Page: 92-98
942			_2ddc _cJOURNAL _n0
999			_c47996 _d47996