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This paper presents LIPS, a Light Intensity based Positioning System for indoor environments. The system uses off-the-shelf LED lamps as signal sources, and uses light sensors as signal receivers. The design is inspired by the observation…

Networking and Internet Architecture · Computer Science 2014-03-11 Bo Xie , Guang Tan , Yunhuai Liu , Mingming Lu , Kongyang Chen , Tian He

Accurate indoor positioning for wireless communication systems represents an important step towards enhanced reliability and security, which are crucial aspects for realizing Industry 4.0. In this context, this paper presents an…

Signal Processing · Electrical Eng. & Systems 2023-06-07 Ivo Bizon , Zhongju Li , Ahmad Nimr , Marwa Chafii , Gerhard P. Fettweis

The radio interferometric positioning system (RIPS) is a novel positioning solution used in wireless sensor networks. This letter explores the ranging accuracy of RIPS in two configurations. In the linear step-frequency (LSF) configuration,…

Information Theory · Computer Science 2015-06-19 Yue Zhang , Wangdong Qi , Guangxia Li , Su Zhang

Current RF machine-learning pipelines rely on task-specific deep networks for modulation classification and related tasks, but these models require custom architectures and labeled datasets for each problem, generalize poorly across channel…

Signal Processing · Electrical Eng. & Systems 2026-02-17 Hang Zou , Bohao Wang , Yu Tian , Lina Bariah , Chongwen Huang , Samson Lasaulce , Mérouane Debbah

This work concerns the estimation of multidimensional nonlinear regression models using multilayer perceptrons (MLPs). The main problem with such models is that we need to know the covariance matrix of the noise to get an optimal estimator.…

Statistics Theory · Mathematics 2008-02-22 Joseph Rynkiewicz

Deep generative priors are a powerful tool for reconstruction problems with complex data such as images and text. Inverse problems using such models require solving an inference problem of estimating the input and hidden units of the…

Information Theory · Computer Science 2019-03-05 Parthe Pandit , Mojtaba Sahraee , Sundeep Rangan , Alyson K. Fletcher

In multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems, representing the whole channel only based on partial subchannels will significantly reduce the channel acquisition overhead. For such a…

Signal Processing · Electrical Eng. & Systems 2024-01-09 Zirui Chen , Zhaoyang Zhang , Zhaohui Yang , Lei Liu

Visible Light Communication (VLC) using light emitting diodes (LEDs) has been gaining increasing attention in recent years as it is appealing for a wide range of applications such as indoor positioning. Orthogonal frequency division…

Information Theory · Computer Science 2015-06-26 Mohammadreza Aminikashani , Wenjun Gu , Mohsen Kavehrad

The goal of this study is to improve the accuracy of millimeter wave received power prediction by utilizing camera images and radio frequency (RF) signals, while gathering image inputs in a communication-efficient and privacy-preserving…

Networking and Internet Architecture · Computer Science 2020-03-04 Yusuke Koda , Jihong Park , Mehdi Bennis , Koji Yamamoto , Takayuki Nishio , Masahiro Morikura

Cost-effective sensors are capable of real-time capturing a variety of air quality-related modalities from different pollutant concentrations to indoor/outdoor humidity and temperature. Machine learning (ML) models are capable of performing…

Machine Learning · Computer Science 2023-08-04 Ahmad Mohammadshirazi , Aida Nadafian , Amin Karimi Monsefi , Mohammad H. Rafiei , Rajiv Ramnath

A multi-layer perceptron (MLP) is a type of neural networks which has a long history of research and has been studied actively recently in computer vision and graphics fields. One of the well-known problems of an MLP is the capability of…

Graphics · Computer Science 2023-10-31 Shin Fujieda , Atsushi Yoshimura , Takahiro Harada

Dynamic Line Rating (DLR) systems are crucial for renewable energy integration in transmission networks. However, traditional methods relying on sensor data face challenges due to the impracticality of installing sensors on every pole or…

Machine Learning · Computer Science 2024-05-22 Henri Manninen , Markus Lippus , Georg Rute

In this paper, the spectral efficiency of permutation modulation-based multiple input multiple output (MIMO) visible light communication is improved using systematically designed, multiweight codeword matrices. Soft-decision, low-complexity…

Signal Processing · Electrical Eng. & Systems 2020-07-01 Oluwafemi Kolade , Ling Cheng

This paper presents the first large-scale real-world evaluation for using LiDAR data to guide the mmWave beam prediction task. A machine learning (ML) model that leverages the LiDAR sensory data to predict the current and future beams was…

Signal Processing · Electrical Eng. & Systems 2022-03-11 Shuaifeng Jiang , Gouranga Charan , Ahmed Alkhateeb

The new generation of communication technologies are constantly being pushed to meet a diverse range of user requirements such as high data rate, low power consumption, very low latency, very high reliability and broad availability. To…

Information Theory · Computer Science 2022-02-15 Anil Yesilkaya , Harald Haas

This work concerns estimation of multidimensional nonlinear regression models using multilayer perceptron (MLP). The main problem with such model is that we have to know the covariance matrix of the noise to get optimal estimator. however…

Statistics Theory · Mathematics 2008-02-22 Joseph Rynkiewicz

Visible light communications (VLC) that use the infrastructure of the indoor illumination system have been envisioned as a compact, safe, and green alternative to WiFi for the downlink of an indoor wireless mobile communication system.…

Information Theory · Computer Science 2013-08-15 Mohammad Noshad , Maite Brandt-Pearce

Reconfigurable Intelligent Surfaces (RISs) are regarded as a key technology for future wireless communications, enabling programmable radio propagation environments. However, the passive reflecting feature of RISs induces notable challenges…

Signal Processing · Electrical Eng. & Systems 2022-02-15 Liuhang Wang , Nir Shlezinger , George C. Alexandropoulos , Haiyang Zhang , Baoyun Wang , Yonina C. Elda

We propose a machine learning (ML) and smartphone-assisted framework for uplink performance prediction in a private, realistic 5G cellular system using real-time measurements in both indoor and outdoor settings. This work presents a…

Networking and Internet Architecture · Computer Science 2026-04-21 Md Mahfuzur Rahman , Jareen Shuva , Nishith Tripathi , Lingjia Liu , Jeffrey Reed

A reconfigurable intelligent surface (RIS) reflects incoming signals in different ways depending on the phase-shift pattern assigned to its elements. The most promising use case is to aid the communication between a base station and a user…

Information Theory · Computer Science 2022-12-06 Emil Björnson , Parisa Ramezani
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