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相关论文: Joint Near Field Uplink Communication and Localiza…

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In this paper, we address the deployment of base stations (BSs) in a one-dimensional network in which the users are randomly distributed.In order to take into account the users' distribution to optimally place the BSs we optimize the uplink…

网络与互联网体系结构 · 计算机科学 2013-02-22 Hirley Alves , Mehdi Bennis , Walid Saad , Mérouane Debbah , Matti Latva-aho

In this paper, we investigate the issue of uplink integrated sensing and communication (ISAC) in 6G wireless networks where the sensing echo signal and the communication signal are received simultaneously at the base station (BS). To…

信息论 · 计算机科学 2024-03-05 Qiao Qi , Xiaoming Chen , Caijun Zhong , Chau Yuen , Zhaoyang Zhang

This paper studies a new latency optimization problem in unmanned aerial vehicles (UAVs)-enabled federated learning (FL) with integrated sensing and communication. In this setup, distributed UAVs participate in model training using sensed…

信息论 · 计算机科学 2024-11-15 Shaba Shaon , Tien Nguyen , Lina Mohjazi , Aryan Kaushik , Dinh C. Nguyen

This paper studies the deployment of multiple movable antennas (MAs) at the base station (BS) for enhancing the multiuser communication performance. First, we model the multiuser channel in the uplink to characterize the wireless channel…

信息论 · 计算机科学 2023-08-11 Xiangyu Pi , Lipeng Zhu , Zhenyu Xiao , Rui Zhang

We consider matrix factorization (MF) with certain constraints, which finds wide applications in various areas. Leveraging variational inference (VI) and unitary approximate message passing (UAMP), we develop a Bayesian approach to MF with…

信号处理 · 电气工程与系统科学 2022-08-02 Zhengdao Yuan , Qinghua Guo , Yonina C. Eldar , Yonghui Li

The joint communication and sensing (JCAS) technique has drawn great attention due to its high spectrum efficiency by using the same transmit signal for both communication and sensing. Exploiting the correlation between the uplink (UL)…

信息论 · 计算机科学 2022-11-09 Xu Chen , Zhiyong Feng , J. Andrew Zhang , Zhiqing Wei , Xin Yuan , Ping Zhang

We propose a new antenna selection scheme for a massive MIMO system with a single user terminal and a base station with a large number of antennas. We consider a practical scenario where there is a realistic correlation among the antennas…

信息论 · 计算机科学 2015-07-09 De Mi , Mehrdad Dianati , Sami Muhaidat , Yan Chen

Shifting 6G-and-beyond wireless systems to higher frequency bands and the utilization of massive multiple-input multiple-output arrays will extend the near-field region, affecting beamforming and user localization schemes. In this paper, we…

信号处理 · 电气工程与系统科学 2025-12-04 Nima Mozaffarikhosravi , Prathapasinghe Dharmawansa , Italo Atzeni

We address the sparse signal recovery problem in the context of multiple measurement vectors (MMV) when elements in each nonzero row of the solution matrix are temporally correlated. Existing algorithms do not consider such temporal…

机器学习 · 统计学 2011-08-18 Zhilin Zhang , Bhaskar D. Rao

This paper presents an approximate wireless communication scheme for federated learning (FL) model aggregation in the uplink transmission. We consider a realistic channel that reveals bit errors during FL model exchange in wireless…

分布式、并行与集群计算 · 计算机科学 2023-04-10 Xiang Ma , Haijian Sun , Rose Qingyang Hu , Yi Qian

This study addresses the problem of discrete signal reconstruction from the perspective of sparse Bayesian learning (SBL). Generally, it is intractable to perform the Bayesian inference with the ideal discretization prior under the SBL…

信号处理 · 电气工程与系统科学 2023-04-19 Jisheng Dai , An Liu , Hing Cheung So

This paper studies a passive source localization system, where a single base station (BS) is employed to estimate the positions and attitudes of multiple mobile stations (MSs). The BS and the MSs are equipped with uniform rectangular…

信号处理 · 电气工程与系统科学 2025-04-24 Mingchen Zhang , Xiaojun Yuan , Boyu Teng , Li Wang

In the context of extremely large-scale antenna arrays deployed in sixth-generation (6G) mobile networks, near-field (NF) communications have gained considerable attention. Unlike the planar waves formulated in the far-field,…

信号处理 · 电气工程与系统科学 2025-01-28 Liyang Lu , Ke Ma , Yue Wang , Zhaocheng Wang

This correspondence presents a novel sensing-assisted sparse channel recovery approach for massive antenna wireless communication systems. We focus on a fundamental configuration with one massive-antenna base station (BS) and one…

信息论 · 计算机科学 2023-11-13 Zixiang Ren , Ling Qiu , Jie Xu , Derrick Wing Kwan Ng

This paper investigates an uplink user equipment (UE) location and orientation estimation problem in an indoor rich-scattering environment (RSE) for a multiple-input-multiple-output (MIMO) narrowband reconfigurable intelligent surfaces…

信号处理 · 电气工程与系统科学 2026-04-21 Anum Umer , Ivo Müürsepp , Muhammad Mahtab Alam

Neural networks (NNs) are primarily developed within the frequentist statistical framework. Nevertheless, frequentist NNs lack the capability to provide uncertainties in the predictions, and hence their robustness can not be adequately…

计算工程、金融与科学 · 计算机科学 2023-10-26 Nastaran Dabiran , Brandon Robinson , Rimple Sandhu , Mohammad Khalil , Dominique Poirel , Abhijit Sarkar

We consider the problem of sparse channel estimation in massive multiple-input multiple-output systems. In this context, we propose an enhanced version of the sparse Bayesian learning (SBL) framework, referred to as enhanced SBL (E-SBL),…

信号处理 · 电气工程与系统科学 2025-01-15 Arttu Arjas , Italo Atzeni

A novel Gaussian mixture model (GMM) aided sparse Bayesian learning (SBL) framework is proposed for channel state information (CSI) estimation in orthogonal time-frequency space (OTFS) modulated systems. The key attribute of the proposed…

信号处理 · 电气工程与系统科学 2026-03-31 Surbhi Gehlot , Suraj Srivastava , Sandeep Kumar Yadav , Lajos Hanzo

This article addresses the problem of multiple preamble detection in random access systems based on orthogonal time frequency space (OTFS) signaling. This challenge is formulated as a structured sparse recovery problem in the complex…

信号处理 · 电气工程与系统科学 2025-09-05 Alessandro Mirri , Vishnu Teja Kunde , Enrico Paolini , Jean-Francois Chamberland

Sensor technology developments provide a basis for effective fault diagnosis in manufacturing systems. However, the limited number of sensors due to physical constraints or undue costs hinders the accurate diagnosis in the actual process.…

机器学习 · 计算机科学 2023-10-26 Jihoon Chung , Zhenyu Kong