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Compressed sensing (CS) schemes are proposed for monostatic as well as synthetic aperture radar (SAR) imaging with chirped signals and Ultra-Narrowband (UNB) continuous waveforms. In particular, a simple, perturbation method is developed to…

数据分析、统计与概率 · 物理学 2015-06-11 Albert Fannjiang , Hsiao-Chieh Tseng

This paper investigates a movable antenna (MA)-assisted multiuser integrated sensing and communication (ISAC) system, where the base station (BS) and communication users are all equipped with MA for improving both the sensing and…

信号处理 · 电气工程与系统科学 2024-07-17 Haoran Qin , Wen Chen , Qingqing Wu , Ziheng Zhang , Zhendong Li , Nan Cheng

The objective of joint rate allocation among multiple coded video streams is to share the bandwidth to meet the demands of minimum average distortion (minAVE) or minimum distortion variance (minVAR). In previous works on minVAR problems,…

多媒体 · 计算机科学 2018-03-16 Hongfei Fan , Lin Ding , Xiaodong Xie , Huizhu Jia , Wen Gao

To backpropagate the gradients through stochastic binary layers, we propose the augment-REINFORCE-merge (ARM) estimator that is unbiased, exhibits low variance, and has low computational complexity. Exploiting variable augmentation,…

机器学习 · 统计学 2019-09-11 Mingzhang Yin , Mingyuan Zhou

This letter investigates channel estimation for ultra-massive multiple-input multiple-output (MIMO) communications. We propose a joint low-rank and sparse Bayesian estimation (LRSBE) algorithm for spatial non-stationary ultra-massive…

信息论 · 计算机科学 2025-12-05 Jianghan Ji , Cheng-Xiang Wang , Shuaifei Chen , Chen Huang , Xiping Wu , Emil Björnson

Pocock and Simon's minimization method is a popular approach for covariate-adaptive randomization in clinical trials. Valid statistical inference with data collected under the minimization method requires the knowledge of the limiting…

统计方法学 · 统计学 2023-12-29 Zixuan Zhao , Yanglei Song , Wenyu Jiang , Dongsheng Tu

While local basis function (LBF) estimation algorithms, commonly used for identifying/tracking systems with time-varying parameters, demonstrate good performance under the assumption of normally distributed measurement noise, the estimation…

信号处理 · 电气工程与系统科学 2025-04-01 Maciej Niedźwiecki , Artur Gańcza , Wojciech Żuławiński , Agnieszka Wyłomańska

Six-dimensional movable antenna (6DMA) technology has been proposed to enhance the performance of Integrated Sensing and Communication (ISAC) systems. However, within 6DMA-related research, studies on the ISAC system based on rotatable…

新兴技术 · 计算机科学 2025-09-16 Zequan Wang , Liang Yin , Zimeng Lei , Yitong Liu , Yunan Sun , Hongwen Yang

Integrated sensing and communication (ISAC) systems may face a heavy computation burden since the sensory data needs to be further processed. This paper studies a novel system that integrates sensing, communication, and computation, aiming…

信号处理 · 电气工程与系统科学 2024-07-02 Yapeng Zhao , Qingqing Wu , Wen Chen , Yong Zeng , Ruiqi Liu , Weidong Mei , Fen Hou , Shaodan Ma

Recent advances in depth sensing technologies allow fast electronic maneuvering of the laser beam, as opposed to fixed mechanical rotations. This will enable future sensors, in principle, to vary in real-time the sampling pattern. We…

计算机视觉与模式识别 · 计算机科学 2022-05-23 Ilya Tcenov , Guy Gilboa

This paper investigates the integrated sensing and communication (ISAC) in vehicle-to-infrastructure (V2I) networks. To realize ISAC, an effective beamforming design is essential which however, highly depends on the availability of accurate…

信号处理 · 电气工程与系统科学 2022-04-28 Chang Liu , Weijie Yuan , Shuangyang Li , Xuemeng Liu , Husheng Li , Derrick Wing Kwan Ng , Yonghui Li

This paper aims to explore reconfigurable intelligent surface (RIS) integration in a millimeter wave (mmWave) communication system with low-complexity transceiver architecture under imperfect CSI assumption. Towards this, we propose a…

信息论 · 计算机科学 2024-02-08 Kali Krishna Kota , Praful D. Mankar

We introduce a new method for robust beamforming, where the goal is to estimate a signal from array samples when there is uncertainty in the angle of arrival. Our method offers state-of-the-art performance on narrowband signals and is…

信号处理 · 电气工程与系统科学 2024-06-25 Nakul Singh , Coleman DeLude , Mark A. Davenport , Justin Romberg

Radar systems typically employ well-designed deterministic signals for target sensing. In contrast to that, integrated sensing and communications (ISAC) systems have to use random signals to convey useful information, potentially causing…

信号处理 · 电气工程与系统科学 2024-01-17 Shihang Lu , Fan Liu , Fuwang Dong , Yifeng Xiong , Jie Xu , Ya-Feng Liu

Recently it was shown by Nesterov (2011) that techniques form convex optimization can be used to successfully accelerate simple derivative-free randomized optimization methods. The appeal of those schemes lies in their low complexity, which…

最优化与控制 · 数学 2014-06-13 Sebastian U. Stich

Least Absolute Shrinkage and Selection Operator or the Lasso, introduced by Tibshirani (1996), is a popular estimation procedure in multiple linear regression when underlying design has a sparse structure, because of its property that it…

统计方法学 · 统计学 2017-10-31 Debraj Das , S. N. Lahiri

The uncertainty of the sensing target brings great challenge to the beamforming design of the integrated sensing and communication (ISAC) system. To address this issue, we model the scattering coefficient and azimuth angle of the target as…

信号处理 · 电气工程与系统科学 2025-02-12 Zongyao Zhao , Zhenyu Liu , Wei Dai , Xinke Tang , Xiao-Ping Zhang , Yuhan Dong

A practical and scalable multicast beamformer design in multi-input multi-output~(MIMO) coded caching~(CC) systems is introduced in this paper. The proposed approach allows multicast transmission to multiple groups with partially…

信息论 · 计算机科学 2023-12-06 Mohammad NaseriTehrani , MohammadJavad Salehi , Antti Tölli

We propose regularized approximate message passing (RAMP), a low-complexity algorithm for discrete signal detection in overloaded multiple-input multiple-output (MIMO) systems where the number of transmit antennas exceeds the number of…

In orthogonal frequency division modulation (OFDM) communication systems, channel state information (CSI) is required at receiver due to the fact that frequency-selective fading channel leads to disgusting inter-symbol interference (ISI)…

信息论 · 计算机科学 2015-04-22 Guan Gui , Li Xu , Lin Shan , Fumiyuki Adachi