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In this study, we consider the selective combining in hybrid cooperative networks (SCHCNs scheme) with one source node, one destination node and $N$ relay nodes. In the SCHCN scheme, each relay first adaptively chooses between…

信息论 · 计算机科学 2016-02-02 Qiang Huo , Tianxi Liu , Shaohui Sun , Lingyang Song , Bingli Jiao

Distributed transmit beamforming is a technique that adjusts the signals from cooperating radios to combine coherently at a destination radio. To achieve coherent combining, the radios can exchange preambles with the destination for…

信号处理 · 电气工程与系统科学 2022-05-11 Samer Hanna , Danijela Cabric

Consider a multiuser system where an arbitrary number of users communicate with a distributed receive array over independent Rayleigh fading paths. The receive array performs minimum mean squared error (MMSE) or zero forcing (ZF) combining…

信息论 · 计算机科学 2013-10-21 Dushyantha A. Basnayaka , Peter J. Smith , Phillipa A. Martin

A novel wireless transmission scheme, as named the reconfigurable intelligent surface (RIS)-assisted received adaptive spatial modulation (RASM) scheme, is proposed in this paper. In this scheme, the adaptive spatial modulation (ASM)-based…

信息论 · 计算机科学 2025-02-26 Chaorong Zhang , Hui Xu , Benjamin K. Ng , Chan-Tong Lam , Ke Wang

Pilot contamination is known to be one of the main impairments for massive MIMO multi-cell communications. Inspired by the concept of fractional frequency reuse and by recent contributions on pilot reutilization among non-adjacent cells, we…

信息论 · 计算机科学 2016-11-15 Italo Atzeni , Jesús Arnau , Mérouane Debbah

A new representation of solutions to the equation $-y"+q(x)y=\omega^2 y$ is obtained. For every $x$ the solution is represented as a Neumann series of Bessel functions depending on the spectral parameter $\omega$. Due to the fact that the…

经典分析与常微分方程 · 数学 2017-07-21 Vladislav V. Kravchenko , Luis J. Navarro , Sergii M. Torba

We describe a new multifractal finite size scaling (MFSS) procedure and its application to the Anderson localization-delocalization transition. MFSS permits the simultaneous estimation of the critical parameters and the multifractal…

无序系统与神经网络 · 物理学 2011-11-02 Alberto Rodriguez , Louella J. Vasquez , Keith Slevin , Rudolf A. Roemer

As a new technology to reconfigure wireless communication environment by signal reflection controlled by software, intelligent reflecting surface (IRS) has attracted lots of attention in recent years. Compared with conventional relay…

信息论 · 计算机科学 2023-11-07 Rongen Dong , Zhongyi Xie , Feng Shu , Mengxing Huang , Jiangzhou Wang

The essentials of fractional calculus according to different approaches that can be useful for our applications in the theory of probability and stochastic processes are established. In addition to this, from this fractional integral one…

数学物理 · 物理学 2013-07-31 Nicy Sebastian

Traditional change detection methods based on convolutional neural networks (CNNs) face the challenges of speckle noise and deformation sensitivity for synthetic aperture radar images. To mitigate these issues, we proposed a Multiscale…

计算机视觉与模式识别 · 计算机科学 2021-09-28 Yunhao Gao , Feng Gao , Junyu Dong , Heng-Chao Li

In this paper, we introduce the fractional Fourier series on the fractional torus and study some basic facts of fractional Fourier series, such as fractional convolution and fractional approximation. Meanwhile, fractional Fourier inversion…

泛函分析 · 数学 2024-07-08 Zunwei Fu , Xianming Hou , Qingyan Wu

We present a system that enables rapid model experimentation for tera-scale machine learning with trillions of non-zero features, billions of training examples, and millions of parameters. Our contribution to the literature is a new method…

机器学习 · 计算机科学 2012-09-07 Stephen Purpura , Dustin Hillard , Mark Hubenthal , Jim Walsh , Scott Golder , Scott Smith

Cellular networks are usually modeled by placing the base stations on a grid, with mobile users either randomly scattered or placed deterministically. These models have been used extensively but suffer from being both highly idealized and…

信息论 · 计算机科学 2016-11-15 Jeffrey G. Andrews , Francois Baccelli , Radha Krishna Ganti

Considering the large number of fractional operators that exist, and since it does not seem that their number will stop increasing soon at the time of writing this paper, it is presented for the first time, as far as the authors know, a…

数值分析 · 数学 2024-03-27 A. Torres-Hernandez , F. Brambila-Paz

This paper presents a unified analysis of the mixed radio-frequency (RF)/free-space optics (FSO) relaying system, with multiple variable-gain amplify-and-forward relays. The partial relay selection (PRS) is employed to select the active…

信息论 · 计算机科学 2022-09-23 Milica I. Petkovic , Zeljen Trpovski

Deep neural networks for image super-resolution (SR) have demonstrated superior performance. However, the large memory and computation consumption hinders their deployment on resource-constrained devices. Binary neural networks (BNNs),…

计算机视觉与模式识别 · 计算机科学 2025-02-24 Renjie Wei , Zechun Liu , Yuchen Fan , Runsheng Wang , Ru Huang , Meng Li

We consider the problem of evaluating the cumulative distribution function (CDF) of the sum of order statistics, which serves to compute outage probability (OP) values at the output of generalized selection combining receivers. Generally,…

统计计算 · 统计学 2017-11-15 Nadhir Ben Rached , Zdravko Botev , Abla Kammoun , Mohamed-Slim Alouini , Raul Tempone

Traditional synthetic aperture radar image change detection methods based on convolutional neural networks (CNNs) face the challenges of speckle noise and deformation sensitivity. To mitigate these issues, we proposed a Multiscale Capsule…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Yunhao Gao , Feng Gao , Junyu Dong , Heng-Chao Li

In this paper, a new two-way relaying scheme based on compute-and-forward (CMF) framework and relay selection strategies is proposed, which provides a higher throughput than the conventional two-way relaying schemes. Two cases of relays…

信息论 · 计算机科学 2014-10-13 Seyed Mohammad Azimi-Abarghouyi , Mohsen Hejazi , Masoumeh Nasiri-Kenari

This paper is concerned with the performance of differential amplify-and-forward (D-AF) relaying for multi-node wireless communications over time-varying Rayleigh fading channels. A first-order auto-regressive model is utilized to…

信息论 · 计算机科学 2014-04-01 M. R. Avendi , Ha H. Nguyen