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In this article, we consider the sparse tensor singular value decomposition, which aims for dimension reduction on high-dimensional high-order data with certain sparsity structure. A method named Sparse Tensor Alternating Thresholding for…

统计理论 · 数学 2024-07-09 Anru Zhang , Rungang Han

The training efficiency of complex deep learning models can be significantly improved through the use of distributed optimization. However, this process is often hindered by a large amount of communication cost between workers and a…

机器学习 · 计算机科学 2023-02-16 Chanho Park , Namyoon Lee

This paper considers a low-complexity Gaussian Message Passing Iterative Detection (GMPID) method over a pairwise graph for a massive Multiuser Multiple-Input Multiple-Output (MU-MIMO) system, in which a base station with M antennas serves…

信息论 · 计算机科学 2016-11-17 Lei Liu , Chau Yuen , Yong Liang Guan , Ying Li , Yuping Su

Unmanned aerial vehicles (UAVs) have become key enablers in relay-assisted wireless communications thanks to their flexibility and line-of-sight channel advantage. However, most existing trajectory optimization frameworks assume ideal…

信息论 · 计算机科学 2025-05-13 Haoyang Di , Xiaodong Zhu , Yulin Shao

This paper considers a multiple-input multiple-output (MIMO) Gaussian wiretap channel model, where there exists a transmitter, a legitimate receiver and an eavesdropper, each equipped with multiple antennas. In this paper, we first revisit…

信息论 · 计算机科学 2015-06-11 S. Ali A. Fakoorian , A. Lee Swindlehurst

In this work, generalized nearest neighbor decoding (GNND), a recently proposed receiver architecture, is studied for channels under general input constellations, and multiuser uplink interference suppression is employed as a case study for…

信息论 · 计算机科学 2025-06-10 Shuqin Pang , Wenyi Zhang

We investigate the security of generalized quantum multiple-access channels. We provide the formula for the achievable rate region of secure communication in the scenario of two senders and a single receiver. We explicitly specify a…

量子物理 · 物理学 2021-06-28 Tamoghna Das , Karol Horodecki , Robert Pisarczyk

Finite field transforms are offered as a new tool of spreading sequence design. This approach exploits orthogonality properties of synchronous non-binary sequences defined over a complex finite field. It is promising for channels supporting…

信息论 · 计算机科学 2015-02-23 H. M. de Oliveira , R. M. Campello de Souza

Algebraic multigrid (AMG) is a widely used scalable solver and preconditioner for large-scale linear systems resulting from the discretization of a wide class of elliptic PDEs. While AMG has optimal computational complexity, the cost of…

数学软件 · 计算机科学 2020-01-22 Wayne B. Mitchell , Robert Strzodka , Robert D. Falgout

In this paper, two regional robust secure precise wireless transmission (SPWT) schemes for multi-user unmanned aerial vehicle (UAV) :1) regional signal-to-leakage-and-noise ratio (SLNR) and artificial-noise-to-leakage-and-noise ratio…

信号处理 · 电气工程与系统科学 2020-06-11 Tong Shen , Tingting Liu , Yan Lin , Yongpeng Wu , Feng Shu , Zhu Han

Spurred by the dramatic mobile IP growth and the emerging Internet of Things (IoT) and cloud-based applications, wireless networking is witnessing a paradigm shift. By fully exploiting the spatial degrees of freedom, the massive…

信息论 · 计算机科学 2016-08-29 Xi Yang , Wen-Jun Lu , Ning Wang , Karl Nieman , Shi Jin , Hongbo Zhu , Xiaomin Mu , Ian Wong , Yongming Huang , Xiaohu You

We consider communication over the Gaussian multiple-access channel in the regime where the number of users grows linearly with the codelength. In this regime, schemes based on sparse superposition coding can achieve a near-optimal tradeoff…

信息论 · 计算机科学 2025-06-04 Xiaoqi Liu , Kuan Hsieh , Ramji Venkataramanan

This paper considers a low-complexity Gaussian Message Passing (GMP) scheme for a coded massive Multiple-Input Multiple-Output (MIMO) systems with Non-Orthogonal Multiple Access (massive MIMO-NOMA), in which a base station with $N_s$…

信息论 · 计算机科学 2018-10-26 Lei Liu , Chau Yuen , Yong Liang Guan , Ying Li , Chongwen Huang

In this work, the problem of transmitting an i.i.d Gaussian source over an i.i.d Gaussian wiretap channel with an i.i.d Gaussian side information available at the intended receiver is considered. The intended receiver is assumed to have a…

信息论 · 计算机科学 2011-10-18 Ghadamali Bagherikaram , Konstantinos N. Plataniotis

We consider a wiretap multiple-input multiple-output multiple-eavesdropper (MIMOME) channel, where agent Alice aims at transmitting a secret message to agent Bob, while leaking no information on it to an eavesdropper agent Eve. We assume…

信息论 · 计算机科学 2014-04-15 Francesco Renna , Nicola Laurenti , Stefano Tomasin

In multi-cast scenario, all desired users are divided into $K$ groups. Each group receives its own individual confidential message stream. Eavesdropper group aims to intercept $K$ confidential-message streams. To achieve a secure…

信息论 · 计算机科学 2017-12-29 Feng Shu , Ling Xu , Jiangzhou Wang , Wei Zhu , Zhou Xiaobo

Massive MIMO systems are moving toward increased numbers of radio frequency chains, higher carrier frequencies and larger bandwidths. As such, digital-to-analog converters (DACs) are becoming a bottleneck in terms of hardware complexity and…

系统与控制 · 电气工程与系统科学 2025-07-16 Thomas Feys , Liesbet Van der Perre , François Rottenberg

In signal processing and identification, generalized singular value decomposition (GSVD), related to a sequence of matrices in product/quotient form are essential numerical linear algebra tools. On behalf of the growing demand for efficient…

数值分析 · 数学 2025-11-13 Sitao Ling , Wenxuan Ma , Musheng Wei

Modern compression systems use linear transformations in their encoding and decoding processes, with transforms providing compact signal representations. While multiple data-dependent transforms for image/video coding can adapt to diverse…

图像与视频处理 · 电气工程与系统科学 2024-11-26 Alessandro Gnutti , Fabrizio Guerrini , Riccardo Leonardi , Antonio Ortega

We investigate design and performance of communications over the bandlimited Gaussian channel with one-bit output quantization. A transceiver structure is proposed, which generates the channel input using a finite set of time-limited and…

信息论 · 计算机科学 2020-11-05 Rui Deng , Jing Zhou , Wenyi Zhang