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Neural Radiance Field (NeRF) has been proposed as an innovative advancement in 3D reconstruction techniques. However, little research has been conducted on the issues of information confidentiality and security to NeRF, such as…

Computer Vision and Pattern Recognition · Computer Science 2024-10-02 Qinglong Huang , Haoran Li , Yong Liao , Yanbin Hao , Pengyuan Zhou

Intrinsic alignments of galaxies are measured and modelled to gain cosmological information, to further understand the interactions between galaxies and to mitigate their effects on gravitational weak lensing studies. Hydrodynamical…

Cosmology and Nongalactic Astrophysics · Physics 2026-02-25 Marloes van Heukelum , Dennis Neumann , Marta Garcia Escobar , Nora Elisa Chisari , Henk Hoekstra

We provide a road towards obtaining gravitational waveforms from inspiraling material binaries with an accuracy viable for third-generation gravitational wave detectors, without necessarily advancing computational hardware or…

General Relativity and Quantum Cosmology · Physics 2021-07-07 John Ryan Westernacher-Schneider

Intelligent reflecting surface (IRS) is of low-cost and energy-efficiency and will be a promising technology for the future wireless communications like sixth generation. To address the problem of conventional directional modulation (DM)…

Information Theory · Computer Science 2020-08-13 Feng Shu , Jiayu Li , Mengxing Huang , Weiping Shi , Yin Teng , Jun Li , Yongpeng Wu , Jiangzhou Wang

Intelligent reflecting surface (IRS) is an emerging technology for wireless communication composed of a large number of low-cost passive devices with reconfigurable parameters, which can reflect signals with a certain phase shift and is…

Information Theory · Computer Science 2023-02-16 Feng Shu , Lili Yang , Yan Wang , Xuehui Wang , Weiping Shi , Chong Shen , Jiangzhou Wang

Shape completion aims to recover the full 3D geometry of an object from a partial observation. This problem is inherently multi-modal since there can be many ways to plausibly complete the missing regions of a shape. Such diversity would be…

Computer Vision and Pattern Recognition · Computer Science 2023-11-21 Wesley Khademi , Li Fuxin

Graph learning on molecules makes use of information from both the molecular structure and the features attached to that structure. Much work has been conducted on biasing either towards structure or features, with the aim that bias…

Machine Learning · Computer Science 2025-02-03 Alex O. Davies , Nirav S. Ajmeri , Telmo de Menezes e Silva Filho

ADCs sit at the interface of the analog and digital worlds and fundamentally determine what information is available in the digital domain for processing. This paper shows that a configurable ADC can be designed for signals with non…

Information Theory · Computer Science 2013-05-14 Arthur J. Redfern , Kun Shi

To make a good balance between performance, cost, and power consumption, a hybrid intelligent reflecting surface (IRS)-aided directional modulation (DM) network is investigated in this paper, where the hybrid IRS consists of passive and…

Information Theory · Computer Science 2023-02-15 Rongen Dong , Hangjia He , Feng Shu , Riqing Chen , Jiangzhou Wang

The retrieval abilities of spatially uniform attractor networks can be measured by the average overlap between patterns and neural states. We found that metric networks, with local connections, however, can carry information structured in…

Adaptation and Self-Organizing Systems · Physics 2016-08-16 David Dominguez , Kostadin Koroutchev , Eduardo Serrano , Francisco B. Rodríguez

Intelligent reflecting surface (IRS) is a promising solution to build a programmable wireless environment for future communication systems, in which the reflector elements steer the incident signal in fully customizable ways by passive…

Information Theory · Computer Science 2022-09-14 Feng Shu , Xinyi Jiang , Wenlong Cai , Weiping Shi , Mengxing Huang , Jiangzhou Wang , Xiaohu You

To fully exploit the additional dimension brought by reconfigurable intelligent surface (RIS), it is recently suggested by information theory that modulating information upon RIS phases is able to send extra information with increased…

Information Theory · Computer Science 2022-11-22 Jiacheng Yao , Jindan Xu , Wei Xu , Chau Yuen , Xiaohu You

We show that short-length probabilistic shaping reduces nonlinear interference in optical fiber transmission. SNR improvements of up to 0.8 dB are obtained. The shaping gain vanishes when interleaving is employed and not undone before…

Signal Processing · Electrical Eng. & Systems 2020-03-27 Tobias Fehenberger , Helmut Griesser , Jörg-Peter Elbers

Achievable information rates of bipolar 4- and 8-ary constellations are experimentally compared to those of intensity modulation (IM) when using an oversampled direct detection receiver. The bipolar constellations gain up to 1.8 dB over…

Compared to passive intelligent reflecting surface (IRS), active IRS is viewed as a more efficient promising technique to combat the double-fading impact in IRS-aided wireless network. In this paper, in order to boost the achievable rate of…

Signal Processing · Electrical Eng. & Systems 2023-05-16 Yeqing Lin , Feng Shu , Rongen Dong , Riqing Chen , Siling Feng , Weiping Shi , Jing Liu , Jiangzhou Wang

In this paper, we propose three novel modulation techniques, i.e., concentration-based, molecular-type-based, and molecular-ratio-based, using isomers as messenger molecules for nano communication networks via diffusion. To evaluate…

Information Theory · Computer Science 2012-08-01 Na-Rae Kim , Chan-Byoung Chae

We optimize modulation formats for the additive white Gaussian noise channel with nonnegative input, also known as the intensity-modulated direct-detection channel, with and without confining them to a lattice structure. Our optimization…

Information Theory · Computer Science 2015-01-07 Johnny Karout , Erik Agrell , Krzysztof Szczerba , Magnus Karlsson

The performance of bit-interleaved coded modulation (BICM) with bit shaping (i.e., non-equiprobable bit probabilities in the underlying binary code) is studied. For the Gaussian channel, the rates achievable with BICM and bit shaping are…

Information Theory · Computer Science 2010-01-19 Albert Guillen i Fabregas , Alfonso Martinez

In wireless communication systems, there are many stages for signal transmission. Among them, mapping and demapping convert a sequence of bits into a sequence of complex numbers and vice versa. This operation is performed by a system of…

Information Theory · Computer Science 2023-03-07 Daniil Yudakov , Dmitrii Kolosov , Evgeny Bobrov

We propose a novel 5-bit/2D-symbol modulation format based on PAM-6 optimized for IM-DD systems dominated by relative intensity noise. The proposed modulation scheme improves SNR by 0.94 dB compared to conventional PAM-6 and achieves…

Signal Processing · Electrical Eng. & Systems 2025-06-03 Felipe Villenas , Kaiquan Wu , Yunus Can Gültekin , Jamal Riani , Alex Alvarado
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