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Found 28 papers, 0 papers with code
Modeling and Analysis of Terahertz Wave Propagation in Charged Dust Using Extended Mie Scattering Theory
In this paper, a channel model for THz wave propagation in charged dust is developed for wireless communications.
Dual-Functional FMCW Waveform for Terahertz Space Debris Detection and Inter-Satellite Communications
In this study, a dual-functional frequency modulated continuous waveform (FMCW) operating in the THz band is adopted for space debris sensing and inter-satellite communications.
Hybrid Channel Modeling and Environment Reconstruction for Terahertz Monostatic Sensing
This work offers valuable insights into THz monostatic sensing channel modeling and the design of future THz ISAC systems.
Tera-SpaceCom: GNN-based Deep Reinforcement Learning for Joint Resource Allocation and Task Offloading in TeraHertz Band Space Networks
To tackle this challenge, a graph neural network (GNN)-deep reinforcement learning (DRL)-based joint resource allocation and task offloading (GRANT) algorithm is proposed with the target of long-term resource efficiency (RE).
PAFedFV: Personalized and Asynchronous Federated Learning for Finger Vein Recognition
Base on these experiment results, the impact of non-IID finger vein data on performance of federated learning are analyzed, and the superiority of PAFedFV in accuracy and robustness are demonstrated.
Deep Reinforcement Learning Based Cross-Layer Design in Terahertz Mesh Backhaul Networks
Furthermore, a DRL based resource allocation algorithm is developed to realize long-term RE maximization and fast recovery from broken links.
How to Differentiate between Near Field and Far Field: Revisiting the Rayleigh Distance
Future wireless systems are likely to adopt extremely large aperture arrays to achieve higher throughput, wider coverage, and higher spatial resolution.
Attenuation and Loss of Spatial Coherence Modeling for Atmospheric Turbulence in Terahertz UAV MIMO Channels
In this paper, the attenuation and loss of spatial coherence for atmospheric turbulence are modeled in THz UAV MIMO channels.
A Universal Attenuation Model of Terahertz Wave in Space-Air-Ground Channel Medium
Providing continuous bandwidth over several tens of GHz, the Terahertz (THz) band (0. 1-10 THz) supports space-air-ground integrated network (SAGIN) in 6G and beyond wireless networks.
Transformer-based GAN for Terahertz Spatial-Temporal Channel Modeling and Generating
Terahertz (THz) communications are envisioned as a promising technology for 6G and beyond wireless systems, providing ultra-broad continuous bandwidth and thus Terabit-per-second (Tbps) data rates.
Scintillation and Attenuation Modelling of Atmospheric Turbulence for Terahertz UAV Channels
Terahertz (THz) wireless communications have the potential to realize ultra-high-speed and secure data transfer with miniaturized devices for unmanned aerial vehicle (UAV) communications.
Transfer Generative Adversarial Networks (T-GAN)-based Terahertz Channel Modeling
In this paper, a transfer generative adversarial network (T-GAN) based modeling method is proposed in the THz band, which exploits the advantage of GAN in modeling the complex distribution, and the benefit of transfer learning in transferring the knowledge from a source task to improve generalization about the target task with limited training data.
THz ISAC: A Physical-Layer Perspective of Terahertz Integrated Sensing and Communication
In this article, challenges from THz channel and transceiver perspectives, as well as difficulties of ISAC are elaborated.
Finger Multimodal Feature Fusion and Recognition Based on Channel Spatial Attention
In this paper, we propose a multimodal biometric fusion recognition algorithm based on fingerprints and finger veins (Fingerprint Finger Veins-Channel Spatial Attention Fusion Module, FPV-CSAFM).
Terahertz Communications for 6G and Beyond Wireless Networks: Challenges, Key Advancements, and Opportunities
The unprecedented increase in wireless data traffic, predicted to occur within the next decade, is motivating academia and industries to look beyond contemporary wireless standards and conceptualize the sixth-generation (6G) wireless networks.
Novel Spectrum Allocation Among Multiple Transmission Windows for Terahertz Communication Systems
We also show that a further data rate gain can be obtained by optimally determining the unused spectra at the edges of TWs, as compared to avoiding using pre-defined spectra at the edges of TWs.
PRINCE: A Pruned AMP Integrated Deep CNN Method for Efficient Channel Estimation of Millimeter-wave and Terahertz Ultra-Massive MIMO Systems
Millimeter-wave (mmWave) and Terahertz (THz)-band communications exploit the abundant bandwidth to fulfill the increasing data rate demands of 6G wireless communications.
DFT-Spread Orthogonal Time Frequency Space System with Superimposed Pilots for Terahertz Integrated Sensing and Communication
Moreover, the effectiveness of the iterative method for data detection aided by superimposed pilots in DFT-s-OTFS systems is validated by the simulations and the bit error rate performance is not degraded by the Doppler effects.
TeraHertz Band Communication: An Old Problem Revisited and Research Directions for the Next Decade
The key aspects presented in this paper will enable THz communications as a pillar of 6G and Beyond wireless systems in the next decade.
Spectrum Allocation with Adaptive Sub-band Bandwidth for Terahertz Communication Systems
Aided by numerical results, we show that by enabling and optimizing ASB, significantly higher throughput can be achieved as compared to adopting equal sub-band bandwidth, and this throughput gain is most profound when the power budget constraint is more stringent.
Sensing Integrated DFT-Spread OFDM Waveform and Deep Learning-powered Receiver Design for Terahertz Integrated Sensing and Communication Systems
One step forward, THz integrated sensing and communication (ISAC) system can realize both unprecedented data rates and millimeter-level accurate sensing.
Learning-based Prediction, Rendering and Transmission for Interactive Virtual Reality in RIS-Assisted Terahertz Networks
This high data rate over short transmission distances may be achieved via abundant bandwidth in the terahertz (THz) band.
Waveform Design for Joint Sensing and Communications in Millimeter-Wave and Low Terahertz Bands
Finally, a data-embedded MS-QP (DE-MS-QP) waveform is constructed through time-domain extension of the MS-QP sequence, generating null frequency points on each subband for data transmission.
Coverage Analysis for 3D Terahertz Communication Systems
We conduct novel coverage probability analysis of downlink transmission in a three-dimensional (3D) terahertz (THz) communication (THzCom) system.
Channel Measurement and Ray-Tracing-Statistical Hybrid Modeling for Low-Terahertz Indoor Communications
Numerical results demonstrate that the proposed hybrid channel model shows good agreement with the measurement and outperforms the conventional statistical and geometric-based stochastic channel model in terms of the temporal-spatial characteristics.
Information Theory Information Theory
Hybrid Beamforming for Terahertz Wireless Communications: Challenges, Architectures, and Open Problems
To overcome the short transmission distance and huge propagation loss, ultra-massive (UM) MIMO systems that employ sub-millimeter wavelength antennas array are proposed to enable an enticingly high array gain.
Information Theory Signal Processing Information Theory
Localization in Power-Constrained Terahertz-Operating Software-Defined Metamaterials
Software-Defined Metamaterials (SDMs) show a strong potential for advancing the engineered control of electromagnetic waves.
Hybrid Beamforming for Terahertz Multi-Carrier Systems over Frequency Selective Fading
We consider a three-dimensional wideband THz channel by incorporating the joint effect of molecular absorption, high sparsity, and multi-path fading, and consider the carrier frequency offset in multi-carrier systems.
