Results 1 to 10 of about 1,374 (110)

Deep Learning-Based Secure MIMO Communications with Imperfect CSI for Heterogeneous Networks [PDF]

Sensors, 2020
Perfect channel state information (CSI) is required in most of the classical physical-layer security techniques, while it is difficult to obtain the ideal CSI due to the time-varying wireless fading channel.
Dan Deng, Xingwang Li, Rupak Kharel
exaly   +4 more sources

BeamNet: Unsupervised Beamforming for ISAC Systems Under Imperfect CSI [PDF]

Entropy
Integrated sensing and communication (ISAC) is expected to be a key enabler for future wireless networks, improving spectral and hardware efficiency by jointly performing radar sensing and wireless communication within a unified framework.
Helitha Nimnaka, Samiru Gayan, Ruhui Zhang, Hazer Inaltekin, H. Vincent Poor   +4 more
doaj   +2 more sources

Harmful Cooperation in Relay-Assisted MIMO Under Imperfect CSI [PDF]

Sensors
This paper investigates the performance of cooperative multiple-input multiple-output (MIMO) systems under practical operating impairments, with particular emphasis on imperfect channel state information (CSI) and relay decoding errors.
Nikolaos Mouziouras, Constantinos T. Angelis, Andreas Tsormpatzoglou, Evangelos Spyrou   +3 more
doaj   +2 more sources

RIS-Aided Physical Layer Security with Imperfect CSI: A Robust Model-Driven Deep Learning Approach [PDF]

Entropy
Reconfigurable intelligent surface (RIS) emerges as a promising paradigm and offers a new perspective for physical layer security. In practice, imperfect eavesdropper channel state information (CSI) represents a critical challenge for RIS-aided physical ...
Ruikai Miao, Zhiqun Song, Yong Li, Xingjian Li, Lizhe Liu, Guoyuan Shao, Bin Wang   +6 more
doaj   +2 more sources

Robust Beamfocusing for Secure NFC with Imperfect CSI [PDF]

Sensors
In this paper, we consider the issue of the physical layer security (PLS) problem between two nodes, i.e., transmitter (Alice) and receiver (Bob), in the presence of an eavesdropper (Eve) in a near-field communication (NFC) system.
Weijian Chen, Zhiqiang Wei, Zai Yang
doaj   +2 more sources

Unified Space–Time-Message Interference Alignment: An End-to-End Learning Approach [PDF]

Entropy
This paper investigates the performance of a multi-user multiple-input single-output (MU-MISO) broadcast channel under the practical constraints of imperfect, delayed, and quantized channel state information at the transmitter (CSIT).
Elaheh Sadeghabadi, Steven Blostein
doaj   +2 more sources

Robust Precoding for Multi-User Visible Light Communications with Quantized Channel Information

Sensors, 2022
In this paper, we address the design of multi-user multiple-input single-output (MU-MISO) precoders for indoor visible light communication (VLC) systems. The goal is to minimize the transmitted optical power per light emitting diode (LED) under imperfect
Olga Muñoz, Antonio Pascual-Iserte, Guillermo San Arranz   +2 more
doaj   +1 more source

Improved User Fairness in Decode-Forward Relaying Non-Orthogonal Multiple Access Schemes With Imperfect SIC and CSI

IEEE Access, 2020
Non-orthogonal multiple access (NOMA) is one of the key technologies to serve in ultra-dense networks with massive connections which is crucial for Internet of Things.
Ferdi Kara, Hakan Kaya
doaj   +1 more source

Enhanced deep soft interference cancellation for multiuser symbol detection

ETRI Journal, 2023
The detection of all the symbols transmitted simultaneously in multiuser systems using limited wireless resources is challenging. Traditional model-based methods show high performance with perfect channel state information (CSI); however, severe ...
Jihyung Kim, Junghyun Kim, Moon-Sik Lee
doaj   +1 more source

Outage performance of SWIPT-NOMA-CR network with imperfect SIC and CSI

物联网学报, 2023
For the cognitive relay network based on simultaneous wireless information and power transfer (SWIPT) and non-orthogonal multiple access (NOMA), which is termed as SWIPT-NOMA-CR network, considering the practical situation of imperfect successive ...
Zhuhua MA, Liping LUO
doaj   +2 more sources