Results 131 to 140 of about 4,393 (215)

TTD Configurations for Near-Field Beamforming: Parallel, Serial, or Hybrid? [PDF]

True-time delayers (TTDs) are popular components for hybrid beamforming architectures to combat the spatial-wideband effect in wideband near-field communications. In this paper, a serial and a hybrid serial-parallel TTD configuration are investigated for
Schober, Robert, Liu, Yuanwei, Wang, Zhaolin, Mu, Xidong   +3 more
core   +2 more sources

Secure Beamforming Design for IRS-ISAC Systems With a Hardware-Efficient Hybrid Beamforming Architecture

IEEE Transactions on Vehicular Technology
In this paper, we employ a hardware-efficient hybrid beamforming (HB) architecture to achieve balanced performance in an intelligent reflecting surface (IRS)-assisted integrated sensing and communication (ISAC) system. We consider a scenario where a multi-antenna, dual-function base station (BS) performs secure beamforming for a multi-antenna ...
Weijie Xiong, Zhenglan Zhao, Jingran Lin, Zhiling Xiao, Qiang Li 0017   +4 more
openaire   +2 more sources

Subchannel Allocation in Massive Multiple-Input Multiple-Output Orthogonal Frequency-Division Multiple Access and Hybrid Beamforming Systems with Deep Reinforcement Learning

Engineering Proceedings
In this study, we emphasize that the maximum sum rate can be achieved through AI-based subchannel allocation, while taking into account all users’ quality of service (QoS) requirements in data rates for hybrid beamforming systems.
Jih-Wei Lee, Yung-Fang Chen
doaj   +1 more source

Secure Satellite Downlink With Hybrid RIS and AI-Based Optimization

IEEE Access
In this paper, we explore a secure multiuser multiple-input single-output (MISO) satellite downlink communication system, enhanced by the integration of a hybrid reconfigurable intelligent surface (RIS).
Mian Muhammad Kamal, Syed Zain Ul Abideen, Syed Sikandar Shah, Nabila Sehito, Salahuddin Khan, Bal S. Virdee, Mohammad Alibakhshikenari, Patrizia Livreri   +7 more
doaj   +1 more source

Performance Comparison of Hybrid Switch, Phase Shifter and Lens Network over Hybrid Beamforming in Millimeter Wave Massive MIMO [PDF]

Iranian Journal of Electrical and Electronic Engineering
Due to cost and energy concerns with digital beamformers, much of the beamforming is done by hybrid beamformers in mm-wave (mm) massive multiple input multiple output (MIMO). Various works in hybrid beamforming structures considered either phase shifters,
Tadele A Abose, Thomas O Olwal, Abel D Daniel, Murad R Hassen   +3 more
doaj  

Hybrid Beamforming Design for Integrated Sensing and Communication Exploiting Prior Information [PDF]

In this paper, we investigate the hybrid beamforming design for a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, where a multi-antenna base station (BS) with hybrid analog-digital transmit antenna arrays sends ...
Wang, Yizhuo, Zhang, Shuowen
core   +1 more source

State-Driven Adaptive Deep-Unfolded PGA Algorithm for Hybrid Beamforming in MIMO-JCAS Systems. [PDF]

Sensors (Basel)
Liu F, Wang Z, Gao Y, Yao Z.
europepmc   +1 more source

Mitigating Interferers With a Universal Beamformer That Hybridizes Adaptive and Conventional Beamformers

IEEE Access
Savas Erdim, John R. Buck
openaire   +1 more source

Cross-Layer Stream Allocation of mMIMO-OFDM Hybrid Beamforming Video Communications. [PDF]

Sensors (Basel)
Chen YT, Tseng SM, Chen YF, Fang C.
europepmc   +1 more source

Joint Power Allocation and Hybrid Beamforming for Cell-Free mmWave Multiple-Input Multiple-Output with Statistical Channel State Information. [PDF]

Sensors (Basel)
Bai J, Wang G, Wang M, Zhu J.
europepmc   +1 more source