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In this paper, we consider a downlink (DL) massive multiple-input multiple-output (MIMO) system, where different users have different mobility profiles. To support this system, we propose to use a hybrid orthogonal time frequency space…

Information Theory · Computer Science 2023-10-16 Ruoxi Chong , Mohammadali Mohammadi , Hien Quoc Ngo , Simon L. Cotton , Michail Matthaiou

Basis set convergence of the Hartree-Fock and the correlation energy is examined for the hydrogen bonded infinite bent chains (HF)_infinity and (HCl)_infinity. We employ series of correlation consistent basis sets up to quintuple zeta…

Other Condensed Matter · Physics 2007-05-23 Christian Buth , Beate Paulus

Fault-tolerant quantum computing requires large-scale superconducting processors, yet monolithic architectures face increasing constraints from wiring density, crosstalk, and fabrication yield. Modular superconducting platforms offer a…

Convolutional neural networks have achieved excellent results in compressed video quality enhancement task in recent years. State-of-the-art methods explore the spatiotemporal information of adjacent frames mainly by deformable convolution.…

Multimedia · Computer Science 2022-10-26 Li Yu , Wenshuai Chang , Shiyu Wu , Moncef Gabbouj

In this paper, we propose a sequence construction framework that extends prime-length Bj\"orck sequences, a class of Constant Amplitude Zero Autocorrelation (CAZAC) sequences, to arbitrary lengths using Goldbach's conjecture for even and…

Signal Processing · Electrical Eng. & Systems 2026-05-29 Harish K. Dureppagari , Chiranjib Saha , R. Michael Buehrer , Harpreet S. Dhillon

This paper proposes a transformer-based lossless crossover method, termed Resonant Transformer Router (RTR), which achieves frequency separation while ensuring perfect phase alignment between low-frequency (LF) and high-frequency (HF)…

Signal Processing · Electrical Eng. & Systems 2025-10-07 Xiangying Li , Jiankuan Li , Yong Tang

Test-time adaptation (TTA) aims to improve model robustness under distribution shifts by adapting to unlabeled test data, but most existing methods rely on backpropagation (BP), which is computationally costly and incompatible with…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Ronghao Zhang , Shuaicheng Niu , Qi Deng , Yanjie Dong , Jian Chen , Runhao Zeng

We propose an algorithm based on Zadoff-Chu (ZC) sequences and time-frequency images (TFI) to achieve drone remote identification (RID). Specifically, by analyzing the modulation parameters and frame structures of drone ratio-frequency (RF)…

Signal Processing · Electrical Eng. & Systems 2026-01-21 Jie Li , Jing Li , Lu Lv , Peixin Zhang , Fengkui Gong

Superconducting quantum computing emerges as one of leading candidates for achieving quantum advantage. However, a prevailing challenge is the coding overhead due to limited quantum connectivity, constrained by nearest-neighbor coupling…

Neural network constraint satisfaction is crucial for safety-critical applications such as power system optimization, robotic path planning, and autonomous driving. However, existing constraint satisfaction methods face…

Machine Learning · Computer Science 2026-03-27 Haoyu Zhu , Yao Zhang , Jiashen Ren , Qingchun Hou

The orthogonal time frequency space (OTFS) modulation as a promising signal representation attracts growingcinterest for integrated sensing and communication (ISAC), yet its merits over orthogonal frequency division multiplexing (OFDM)…

Signal Processing · Electrical Eng. & Systems 2023-04-28 Bowen Wang , Jianchi Zhu , Xiaoming She , Peng Chen

Sequences with low aperiodic autocorrelation sidelobes are well known to have extensive applications in active sensing and communication systems. In this paper, we consider the problem of minimizing the weighted integrated sidelobe level…

Optimization and Control · Mathematics 2016-04-20 Junxiao Song , Prabhu Babu , Daniel P. Palomar

This research introduces a novel extension, called the Extended Kolmogorov-Zurbenko Fourier Transform (EKZFT), to an existing class of band-pass filters first introduced by Kolmogorov and Zurbenko. Their original Kolmogorov-Zurbenko Fourier…

Methodology · Statistics 2025-04-01 Edward Valachovic

Cell-free Massive MIMO (multiple-input multiple-output) is a promising distributed network architecture for 5G-and-beyond systems. It guarantees ubiquitous coverage at high spectral efficiency (SE) by leveraging signal co-processing at…

Information Theory · Computer Science 2020-04-17 Giovanni Interdonato , Marcus Karlsson , Emil Björnson , Erik G. Larsson

We develop a sub-lattice phase-field model of Hf1-xZrxO2 incorporating zirconium (Zr) concentration (x)-dependence. Our framework expands the time-dependent Ginzburg-Landau (TDGL) equation to the sub-lattice level and incorporates…

Materials Science · Physics 2026-04-08 Tae Ryong Kim , Sumeet K. Gupta

Zero-knowledge circuits enable privacy-preserving and scalable systems but are difficult to implement correctly due to the tight coupling between witness computation and circuit constraints. We present zkCraft, a practical framework that…

Cryptography and Security · Computer Science 2026-04-23 Rong Fu , Jia Yee Tan , Youjin Wang , Ziyu Kong , Zeli Su , Zhaolu Kang , Shuning Zhang , Xianda Li , Kun Liu , Simon Fong

Test-Time Adaptation (TTA) is essential for enabling deep learning models to handle real-world data distribution shifts. However, current approaches face significant limitations: backpropagation-based methods are not suitable for low-end…

Computer Vision and Pattern Recognition · Computer Science 2026-03-27 Xingyu Wang , Tao Wang

Recently, a structure of an optimal linear precoder for multi cell downlink systems has been described in [1, Eq (3.33)]. Other references (e.g., [2,3]) have used simplified versions of the precoder to obtain promising performance gains.…

Information Theory · Computer Science 2023-07-19 Axel Müller , Romain Couillet , Emil Björnson , Sebastian Wagner , Mérouane Debbah

While recent Zero-Shot Text-to-Speech (ZS-TTS) models have achieved high naturalness and speaker similarity, they fall short in accent fidelity and control. To address this issue, we propose zero-shot accent generation that unifies Foreign…

Sound · Computer Science 2026-02-06 Jinzuomu Zhong , Korin Richmond , Zhiba Su , Siqi Sun

In wireless communications, the performance of non-orthogonal sequence sets significantly affects the level of multi-user interference when the number of users surpasses the sequence length. The design of non-orthogonal sequences plays a…

Information Theory · Computer Science 2025-10-21 Zhi Gu , Wai Ho Mow
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