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Degrees of freedom (DoF) gains are studied in wireless networks with cooperative transmission under a backhaul load constraint that limits the average number of messages that can be delivered from a centralized controller to base station…

信息论 · 计算机科学 2018-11-27 Meghana Bande , Aly El Gamal , Venugopal V. Veeravalli

Advanced channel decoders rely on soft-decision decoder inputs for which mutual information (MI) is the natural figure of merit. In this paper, we analyze an optical fiber system by evaluating MI as the maximum achievable rate of…

信息论 · 计算机科学 2015-11-20 Tobias Fehenberger , Norbert Hanik

We consider $\hinf$-optimal state-feedback control of the class of linear Partial Differential Equations (PDEs) which admit a Partial Integral Equation (PIE) representation. While linear matrix inequalities are commonly used for optimal…

最优化与控制 · 数学 2026-04-07 Sachin Shivakumar , Amritam Das , Matthew Peet

Electro-optic modulators from non-linear $\chi^{(2)}$ materials are essential for sensing, metrology and telecommunications because they link the optical domain with the microwave domain. At present, most geometries are suited for fiber…

Measuring Mutual Information (MI) between high-dimensional, continuous, random variables from observed samples has wide theoretical and practical applications. Recent work, MINE (Belghazi et al. 2018), focused on estimating tight…

机器学习 · 计算机科学 2019-05-28 Xiao Lin , Indranil Sur , Samuel A. Nastase , Ajay Divakaran , Uri Hasson , Mohamed R. Amer

We consider a single user (SU) massive MIMO system with multiple antennas at the transmitter (base station) and a single antenna at the user terminal (UT). Taking transceiver power consumption into consideration, for a given spectral…

信息论 · 计算机科学 2014-10-21 Sudarshan Mukherjee , Saif Khan Mohammed

In this paper, we present two new communication-efficient methods for distributed minimization of an average of functions. The first algorithm is an inexact variant of the DANE algorithm that allows any local algorithm to return an…

最优化与控制 · 数学 2016-08-25 Sashank J. Reddi , Jakub Konečný , Peter Richtárik , Barnabás Póczós , Alex Smola

The information capacity of an optical channel under power constraints is ultimately limited by the quantum nature of transmitted signals. We discuss currently available and emerging photonic technologies whose combination can be shown…

量子物理 · 物理学 2020-05-18 Konrad Banaszek , Ludwig Kunz , Marcin Jarzyna , Michał Jachura

Compared with a single-input-single-output (SISO) wireless communication system, the benefit of multiple-input-multiple-output (MIMO) technology originates from its extra degree of freedom (DOF), also referred as scattering channels or…

信息论 · 计算机科学 2022-10-19 Shuai S. A. Yuan , Zi He , Sheng Sun , Xiaoming Chen , Chongwen Huang , Wei E. I. Sha

We investigate key aspects of coherent optical communications on inter-satellite links (ISLs) for the next-generation ultra-dense low-Earth orbit (LEO) constellations. Initially, the suitability of QPSK, 8-QAM, and 16-QAM modulation formats…

信号处理 · 电气工程与系统科学 2023-07-06 I. P. Vieira , T. C. Pita , D. A. A. Mello

Several proposed techniques for distinguishing between optical coherent states are analyzed under a physically realistic model of photodetection. Quantum error probabilities are derived for the Kennedy receiver, the Dolinar receiver and the…

量子物理 · 物理学 2009-11-10 JM Geremia

Interference Alignment (IA) is a transmission scheme which achieves 1/2 Degrees-of-Freedom (DoF) per transmit-antenna per user. The constraints imposed on the scheme are based on the linear receiver since conventional IA assumes Gaussian…

信息论 · 计算机科学 2014-02-12 B Hari Ram , K Giridhar

We consider optimal experimental design (OED) problems in selecting the most informative observation sensors to estimate model parameters in a Bayesian framework. Such problems are computationally prohibitive when the…

计算工程、金融与科学 · 计算机科学 2024-09-10 Jinwoo Go , Peng Chen

The rapid growth of artificial intelligence, coupled with the slowing of Moore's law, is straining computing infrastructure, as CMOS electronics face inherent limits in bandwidth, energy efficiency, and parallelism. Integrated photonic…

This paper introduces a new member of the family of Variational Autoencoders (VAE) that constrains the rate of information transferred by the latent layer. The latent layer is interpreted as a communication channel, the information rate of…

机器学习 · 计算机科学 2018-07-26 D. T. Braithwaite , W. B. Kleijn

This paper characterizes and jointly optimizes Age of Information (AoI) and energy efficiency in heterogeneous correlated random access networks, where each sensor adopts a distinct transmission probability and its observations are…

网络与互联网体系结构 · 计算机科学 2025-09-09 Anshan Yuan , Xinghua Sun , Yayu Gao , Wen Zhan , Xiang Chen

A novel hybrid method based on Mie theory and the Discrete Dipole Approximation (DDA) was developed to study the microscopic parameters governing the optical response of tunable photonic crystals (PC). The method is based on a two-step…

Electromagnetic information theory (EIT) is one of the emerging topics for 6G communication due to its potential to reveal the performance limit of wireless communication systems. For EIT, one of the most important research directions is…

信息论 · 计算机科学 2025-04-14 Zhongzhichao Wan , Jieao Zhu , Yongli Yan , Linglong Dai

In this paper, we focus on the energy efficiency (EE) optimization and analysis of reconfigurable intelligent surface (RIS)-assisted multiuser downlink near-field communications. Specifically, we conduct a comprehensive study on several key…

信号处理 · 电气工程与系统科学 2025-05-26 Wei Wang , Xiaoyu Ou , Zhihan Ren , Waqas Bin Abbas , Shuping Dang , Angela Doufexi , Mark A. Beach

We propose a near-optimum receiver for the discrimination of binary phase-shift-keyed coherent states employing photon-number-resolving detectors. The receiver exploits a discrimination strategy based on both the so-called homodyne-like and…

量子物理 · 物理学 2023-03-10 Michele N. Notarnicola , Matteo G. A. Paris , Stefano Olivares