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Millimeter-wave (mmWave) cloud radio access networks (CRANs) provide new opportunities for accurate cooperative localization, in which large bandwidths, large antenna arrays, and increased densities of base stations allow for their…

信息论 · 计算机科学 2019-08-13 Jie Yang , Shi Jin , Chao-Kai Wen , Jiajia Guo , Michail Matthaiou

Indoor localization systems are most commonly based on Received Signal Strength Indicator (RSSI) measurements of either WiFi or Bluetooth-Low-Energy (BLE) beacons. In such systems, the two most common techniques are trilateration and…

网络与互联网体系结构 · 计算机科学 2020-06-17 Ramdoot Pydipaty , Johnu George , Krishna Selvaraju , Amit Saha

Ultra-Wideband (UWB) technology is an emerging low-cost solution for localization in a generic environment. However, UWB signal can be affected by signal reflections and non-line-of-sight (NLoS) conditions between anchors; hence, in a…

机器人学 · 计算机科学 2024-04-09 Umberto Albertin , Alessandro Navone , Mauro Martini , Marcello Chiaberge

In this paper we study the joint determination of source and background flux for point sources as observed by digital array detectors. We explicitly compute the two-dimensional Cram\'er-Rao absolute lower bound (CRLB) as well as the…

天体物理仪器与方法 · 物理学 2023-11-22 Mario L. Vicuña , Jorge F. Silva , Rene A. Mendez , Marcos E. Orchard , Sebastian Espinosa , Jeremy Tregloan-Reed

We present a method for determining the unknown location of a sensor placed in a known 2D environment in the presence of unknown dynamic obstacles, using only few distance measurements. We present guarantees on the quality of the…

机器人学 · 计算机科学 2024-08-20 Michael M. Bilevich , Shahar Guini , Dan Halperin

We investigate the problem of reconfigurable intelligent surface (RIS)-aided near-field localization of a user equipment (UE) served by a base station (BS) under phase-dependent amplitude variations at each RIS element. Through a…

信号处理 · 电气工程与系统科学 2022-09-30 Cuneyd Ozturk , Musa Furkan Keskin , Henk Wymeersch , Sinan Gezici

Many applications have been identified which require the deployment of large-scale low-power wireless sensor networks. Some of the deployment environments, however, impose harsh operation conditions due to intense cross-technology…

信号处理 · 电气工程与系统科学 2025-07-08 Abiy Tasissa , Waltenegus Dargie

Target parameter estimation performance is investigated for a radar employing a set of widely separated transmitting and receiving antenna arrays. Cases with multiple extended targets are considered under two signal model assumptions:…

信息论 · 计算机科学 2018-08-02 Peter Khomchuk , Igal Bilik , Rick S. Blum

This paper studies a multiple-input multiple-output (MIMO) integrated sensing and communication (ISAC) system, in which a multi-antenna base station (BS) sends unified wireless signals to estimate one sensing target and communicate with a…

信息论 · 计算机科学 2022-09-27 Haocheng Hua , Tony Xiao Han , Jie Xu

This paper derives a novel pilot-aided phase and channel estimation algorithm for multiple-input multiple-output (MIMO) systems with phase noise and quasi-static channel fading. Our novel approach allows, for the first time, carrier phase…

信号处理 · 电气工程与系统科学 2021-12-07 Yiming Li , Zhouyi Hu , Andrew Ellis

We consider distributed estimation of a Gaussian source in a heterogenous bandwidth constrained sensor network, where the source is corrupted by independent multiplicative and additive observation noises, with incomplete statistical…

信息论 · 计算机科学 2018-05-23 Alireza Sani , Azadeh Vosoughi

To improve the localization precision of unmanned aerial vehicle (UAV), a novel framework is established by jointly utilizing multiple measurements of received signal strength (RSS) from multiple base stations (BSs) and multiple points on…

信号处理 · 电气工程与系统科学 2020-11-04 Yifan Li , Feng Shu , Baihua Shi , Xin Cheng , Yaoliang Song , Jiangzhou Wang

Radio Map Prediction (RMP), aiming at estimating coverage of radio wave, has been widely recognized as an enabling technology for improving radio spectrum efficiency. However, fast and reliable radio map prediction can be very challenging…

信号处理 · 电气工程与系统科学 2021-05-18 Yu Tian , Shuai Yuan , Weisheng Chen , Naijin Liu

Precise and accurate localization in outdoor and indoor environments is a challenging problem that currently constitutes a significant limitation for several practical applications. Ultra-wideband (UWB) localization technology represents a…

The use of Intelligent Reflective Surfaces (IRS) to assist communication and sensing has proven cost-effective in challenging scenarios. For sensing, IRS is shown to sense non-line-of-sight (NLOS) and stealth targets, albeit with…

信号处理 · 电气工程与系统科学 2026-05-07 Sanjeeva Reddy S , Vinod Veera Reddy

This paper introduces an expectation-maximization (EM) algorithm within a wavelet domain Bayesian framework for semi-blind channel estimation of multiband OFDM based UWB communications. A prior distribution is chosen for the wavelet…

网络与互联网体系结构 · 计算机科学 2007-08-13 Sajad Sadough , Mahieddine Ichir , Emmanuel Jaffrot , Pierre Duhamel

We establish non-asymptotic efficiency guarantees for tensor decomposition-based inference in count data models. Under a Poisson framework, we consider two related goals: (i) parametric inference, the estimation of the full distributional…

Velocity estimation is a cornerstone of the recently introduced near-field predictive beamforming. This paper derives the Cramer-Rao bounds (CRBs) for joint radial and transverse velocity estimation within a predictive beamforming framework…

信号处理 · 电气工程与系统科学 2026-05-19 Khalid A. Alshumayri , Mudassir Masood , Ali. A. Nasir

Channel estimation is of crucial importance for tomorrow's wireless mobile communication systems. This paper focuses on the solution of channel parameters estimation problem in a scenario involving multiple paths in the presence of additive…

信号处理 · 电气工程与系统科学 2018-04-05 Amir Ebrahimi , Ardavan Rahimian

This work addresses visual cross-view metric localization for outdoor robotics. Given a ground-level color image and a satellite patch that contains the local surroundings, the task is to identify the location of the ground camera within…

计算机视觉与模式识别 · 计算机科学 2022-08-19 Zimin Xia , Olaf Booij , Marco Manfredi , Julian F. P. Kooij