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Due to the low per-antenna SNR and high signaling overhead, channel estimation is a major bottleneck in Massive MIMO systems. Spatial constraints can improve estimation performance by exploiting sparsity. Solutions exist for far field -…

信息论 · 计算机科学 2017-12-21 Arkady Molev-Shteiman , Laurence Mailaender , Xiao-Feng Qi

In this paper, we consider people counting and localization systems exploiting channel state information (CSI) measured from commodity WiFi network interface cards (NICs). While CSI has useful information of amplitude and phase to describe…

信息论 · 计算机科学 2026-05-01 Jihoon Cha , Hwanjin Kim , Junil Choi

Spatial transcriptomics (ST) is a promising technique that characterizes the spatial gene profiling patterns within the tissue context. Comprehensive ST analysis depends on consecutive slices for 3D spatial insights, whereas the missing…

图像与视频处理 · 电气工程与系统科学 2025-05-19 NingFeng Que , Xiaofei Wang , Jingjing Chen , Yixuan Jiang , Chao Li

Massive MIMO brings both motivations and challenges to develop the 5th generation Mobile wireless technology. The promising number of users and the high bitrate offered per unit area are challenged by uplink pilot contamination due to pilot…

网络与互联网体系结构 · 计算机科学 2016-05-04 Ahmad Abboud , Jean-Pierre Cances , Ali H. Jaber , Vahid Meghdadi

Multiple wireless sensing tasks, e.g., radar detection for driver safety, involve estimating the "channel" or relationship between signal transmitted and received. In this work, we focus on a certain channel model known as the delay-doppler…

信息论 · 计算机科学 2020-11-24 Alisha Zachariah

We use Deep Operator Networks (DeepONets) to perform super-resolution reconstruction of the solutions of two types of partial differential equations and compare the model predictions with the results obtained using conventional…

图像与视频处理 · 电气工程与系统科学 2024-10-29 Siyuan Yang

In this article, we present a survey of recent advances in passive human behaviour recognition in indoor areas using the channel state information (CSI) of commercial WiFi systems. Movement of human body causes a change in the wireless…

人工智能 · 计算机科学 2017-08-25 Siamak Yousefi , Hirokazu Narui , Sankalp Dayal , Stefano Ermon , Shahrokh Valaee

This paper presents a novel compressed sensing (CS) approach to high dimensional wireless channel estimation by optimizing the input to a deep generative network. Channel estimation using generative networks relies on the assumption that…

信号处理 · 电气工程与系统科学 2020-06-25 Eren Balevi , Akash Doshi , Ajil Jalal , Alexandros Dimakis , Jeffrey G. Andrews

Acquiring and utilizing accurate channel state information (CSI) can significantly improve transmission performance, thereby holding a crucial role in realizing the potential advantages of massive multiple-input multiple-output (MIMO)…

信息论 · 计算机科学 2024-03-21 Haotian Wu , Maojun Zhang , Yulin Shao , Krystian Mikolajczyk , Deniz Gündüz

Base station clustering is necessary in large interference networks, where the channel state information (CSI) acquisition overhead otherwise would be overwhelming. In this paper, we propose a novel long-term throughput model for the…

信息论 · 计算机科学 2016-04-20 Rasmus Brandt , Rami Mochaourab , Mats Bengtsson

Interpolation methodologies have been widely used within the domain of indoor positioning systems. However, existing indoor positioning interpolation algorithms exhibit several inherent limitations, including reliance on complex…

机器学习 · 计算机科学 2023-11-28 Suorong Yang , Geng Zhang , Jian Zhao , Furao Shen

Direct localization (DLOC) methods, which use the observed data to localize a source at an unknown position in a one-step procedure, generally outperform their indirect two-step counterparts (e.g., using time-difference of arrivals).…

机器学习 · 计算机科学 2022-07-22 Amir Weiss , Toros Arikan , Gregory W. Wornell

User mobility in wireless data networks is increasing because of technological advances and the desire for voice and multimedia applications. These applications, however, require fast handoffs between base stations to maintain the quality…

网络与互联网体系结构 · 计算机科学 2012-06-18 S. Alagu , T. Meyyappan

Reducing feedback overhead in beyond 5G networks is a critical challenge, as the growing number of antennas in modern massive MIMO systems substantially increases the channel state information (CSI) feedback demand in frequency division…

系统与控制 · 电气工程与系统科学 2026-02-24 Sehyun Ryu , Hyun Jong Yang

Accurate detection of human presence in indoor environments is important for various applications, such as energy management and security. In this paper, we propose a novel system for human presence detection using the channel state…

机器学习 · 计算机科学 2024-02-09 Li-Hsiang Shen , An-Hung Hsiao , Kuan-I Lu , Kai-Ten Feng

Channel state information (CSI) needs to be estimated for reliable and efficient communication, however, location information is hidden inside and can be further exploited. This article presents a detailed description of a Massive…

系统与控制 · 电气工程与系统科学 2022-11-11 Achiel Colpaert , Sibren De Bast , Andrea P. Guevara , Zhuangzhuang Cui , Sofie Pollin

The large amount of deployed smart devices put tremendous traffic pressure on networks. Caching at the edge has been widely studied as a promising technique to solve this problem. To further improve the successful transmission probability…

信息论 · 计算机科学 2021-01-25 Tianming Feng , Shuo Shi , Shushi Gu , Ning Zhang , Wei Xiang , Xuemai Gu

With the development of computer graphics technology, the images synthesized by computer software become more and more closer to the photographs. While computer graphics technology brings us a grand visual feast in the field of games and…

计算机视觉与模式识别 · 计算机科学 2022-07-08 Ziyi Xi , Hao Lin , Weiqi Luo

We present a learning-based method for interpolating and manipulating 3D shapes represented as point clouds, that is explicitly designed to preserve intrinsic shape properties. Our approach is based on constructing a dual encoding space…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Marie-Julie Rakotosaona , Maks Ovsjanikov

Accurate and effective channel state information (CSI) feedback is a key technology for massive multiple-input and multiple-output (MIMO) systems. Recently, deep learning (DL) has been introduced to enhance CSI feedback in massive MIMO…

信号处理 · 电气工程与系统科学 2023-02-01 Han Xiao , Wenqiang Tian , Wendong Liu , Zhi Zhang , Zhihua Shi , Li Guo , Jia Shen