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We introduce EffiFusion-GAN (Efficient Fusion Generative Adversarial Network), a lightweight yet powerful model for speech enhancement. The model integrates depthwise separable convolutions within a multi-scale block to capture diverse…

Sound · Computer Science 2025-08-21 Bin Wen , Tien-Ping Tan

Recently, the concept of holographic multiple-input multiple-output (MIMO) is emerging as one of the promising technologies beyond massive MIMO. Many challenges need to be addressed to bring this novel idea into practice, including…

Information Theory · Computer Science 2023-01-16 Tengjiao Wang , Wei Han , Zhimeng Zhong , Jiyong Pang , Guohua Zhou , Shaobo Wang , Qiang Li

Coherent feedback control (CFC) of multipartite optical entangled states produced by a non-degenerate optical parametric amplifier is theoretically studied. The features of the quantum correlations of amplitude and phase quadratures among…

Quantum Physics · Physics 2012-01-06 Zhihui Yan , Xiaojun Jia , Changde Xie , Kunchi Peng

A correlated phase-and-additive-noise (CPAN) mismatched model is developed for wavelength division multiplexing over optical fiber channels governed by the nonlinear Schr\"odinger equation. Both the phase and additive noise processes of the…

Information Theory · Computer Science 2020-11-30 Francisco Javier Garcia-Gomez , Gerhard Kramer

Ultra-reliable low latency communications (uRLLC) is adopted in the fifth generation (5G) mobile networks to better support mission-critical applications that demand high level of reliability and low latency. With the aid of…

Information Theory · Computer Science 2023-07-20 Xiaohu You , Bin Sheng , Yongming Huang , Wei Xu , Chuan Zhang , Dongming Wang , Pengcheng Zhu , Chen Ji

Oscillator phase noise (PHN) and carrier frequency offset (CFO) can adversely impact the performance of orthogonal frequency division multiplexing (OFDM) systems, since they can result in inter carrier interference and rotation of the…

Information Theory · Computer Science 2016-11-15 Omar H. Salim , Ali A. Nasir , Hani Mehrpouyan , Wei Xiang , Salman Durrani , Rodney A. Kennedy

The integration of terahertz communications and ultra-massive multiple-input multiple-output (UM-MIMO) systems in 6G networks is motivated by their ability to enable unprecedented data rates, mitigate spectrum congestion, and enhance…

Signal Processing · Electrical Eng. & Systems 2026-05-14 Dmitry Artemasov , Alexander Shmatok , Kirill Andreev , Alexey Frolov , Manjesh K. Hanawal , Nikola Zlatanov

We propose a novel deep energy autoencoder (EA) for noncoherent multicarrier multiuser single-input multipleoutput (MU-SIMO) systems under fading channels. In particular, a single-user noncoherent EA-based (NC-EA) system, based on the…

Information Theory · Computer Science 2020-02-21 Thien Van Luong , Youngwook Ko , Ngo Anh Vien , Michail Matthaiou , Hien Quoc Ngo

A discrete-time two-user interference channel model is developed that captures non-linear phenomena that arise in optical fiber communication employing wavelength-division multiplexing (WDM). The effect of non-linearity is that an amplitude…

Information Theory · Computer Science 2011-07-12 Hassan Ghozlan , Gerhard Kramer

Cell-free multiple input multiple output (CF-MIMO) systems improve spectral and energy efficiencies using distributed access points (APs) to provide reliable service across an area equivalent to multiple conventional cells. This paper…

Networking and Internet Architecture · Computer Science 2025-06-03 Yi Chu , Mostafa Rahmani , Josh Shackleton , David Grace , Kanapathippillai Cumanan , Hamed Ahmadi , Alister Burr

The revolutionary technology of \emph{Stacked Intelligent Metasurfaces (SIM)} has been recently shown to be capable of carrying out advanced signal processing directly in the native electromagnetic (EM) wave domain. An SIM is fabricated by…

Information Theory · Computer Science 2023-05-16 Jiancheng An , Chao Xu , Derrick Wing Kwan Ng , George C. Alexandropoulos , Chongwen Huang , Chau Yuen , Lajos Hanzo

Mode-division multiplexing (MDM) is seen as a possible solution to satisfy the rising capacity demands of optical communication networks. To make MDM a success, fibers supporting the propagation of a huge number of modes are of interest.…

Computational Physics · Physics 2020-02-19 Marius Brehler , Malte Schirwon , Peter M. Krummrich , Dominik Göddeke

Based on the physical features of Raman amplification, we propose a three-step modelling scheme based on neural networks (NN) and linear regression. Higher accuracy, less data requirements and lower computational complexity are demonstrated…

Machine Learning · Computer Science 2022-06-28 Yihao Zhang , Xiaomin Liu , Yichen Liu , Lilin Yi , Weisheng Hu , Qunbi Zhuge

To fully exploit the advantages of massive multiple-input multiple-output (m-MIMO), accurate channel state information (CSI) is required at the transmitter. However, excessive CSI feedback for large antenna arrays is inefficient and thus…

Information Theory · Computer Science 2021-05-24 Yuyao Sun , Wei Xu , Le Liang , Ning Wang , Geoffery Ye Li , Xiaohu You

In this paper, we propose to use the discretized version of the so-called Enhanced Gaussian Noise (EGN) model to estimate the non-linearity effects of fiber on the performance of optical coherent and uncompensated transmission (CUT)…

Signal Processing · Electrical Eng. & Systems 2020-02-19 Ramin Hashemi , Mehdi Habibi , Hamzeh Beyranvand , Ali Emami , Mahdi Hashemi , Davood Ranjbar Rafie

We report broadband ferromagnetic resonance (FMR) measurements based on a coplanar waveguide (CPW) of ultrathin magnetic film structures that comprise in-plane/out-of-plane decoupled layers deposited on nonmagnetic buffer layers of various…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 H. Glowinski , M. Schmidt , I. Goscianska , J. Dubowik , J-Ph. Ansermet

As 5G networks rapidly expand and 6G technologies emerge, characterized by dense deployments, millimeter-wave communications, and dynamic beamforming, the need for scalable simulation tools becomes increasingly critical. These tools must…

Networking and Internet Architecture · Computer Science 2026-01-07 Mohammed Mallik , Guillaume Villemaud

The nonlinear Shannon capacity limit has been identified as the fundamental barrier to the maximum rate of transmitted information in optical communications. In long-haul high-bandwidth optical networks, this limit is mainly attributed to…

Signal Processing · Electrical Eng. & Systems 2019-04-19 Elias Giacoumidis , Jinlong Wei , Ivan Aldaya , Liam P. Barry

Recently, referring image segmentation has aroused widespread interest. Previous methods perform the multi-modal fusion between language and vision at the decoding side of the network. And, linguistic feature interacts with visual feature…

Computer Vision and Pattern Recognition · Computer Science 2021-05-06 Guang Feng , Zhiwei Hu , Lihe Zhang , Huchuan Lu

An alternative extreme learning machine -ELM- paradigm is presented exploiting random non-linearities -RN, named RN-ELM, instead of a conventional fixed node non-linearity. This method is implemented on a hybrid neural engine, with the…

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