Results 61 to 70 of about 12,655 (183)

Secret Key Generation Based on AoA Estimation for Low SNR Conditions

open access: yes, 2014
In the context of physical layer security, a physical layer characteristic is used as a common source of randomness to generate the secret key. Therefore an accurate estimation of this characteristic is the core for reliable secret key generation ...
Badawy, Ahmed   +5 more
core   +1 more source

Angle-of-Arrival Estimation Using Different Phase Shifts Across Subarrays in Localized Hybrid Arrays [PDF]

open access: yes, 2016
© 1997-2012 IEEE. Angle-of-arrival (AoA) estimation, even for a single arriving signal, in a localized hybrid array is challenging and time-consuming due to a phase ambiguity problem. Subarrays use the same phase shifting values conventionally to exploit
Cheng, P, Lu, Y, Ni, W, Zhang, JA
core   +1 more source

Hyperparameter‐Free Maximum Versoria Criterion Based Channel‐State Acquisition for mmWave Hybrid MIMO With Hardware Impairments

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This paper addresses channel estimation in mmWave (millimetre wave) hybrid MIMO (multiple‐input multiple‐output) systems impaired by residual transceiver hardware nonidealities, modelled as additive non‐Gaussian noise via Bussgang decomposition. A hyperparameter‐free maximum Versoria criterion (MVC)‐based channel estimator is proposed, featuring a ...
Rangeet Mitra   +5 more
wiley   +1 more source

Cascade AOA Estimation Algorithm Based on Flexible Massive Antenna Array

open access: yesSensors, 2020
The Angle-of-Arrival (AOA) has a variety of applications in civilian and military wireless communication fields. Due to the rapid development of the location-based service (LBS) industry, the importance of the AOA estimation technique has increased ...
Tae-yun Kim, Suk-seung Hwang
doaj   +1 more source

Deep Learning Enabled Beam Tracking for Non-Line of Sight Millimeter Wave Communications

open access: yesIEEE Open Journal of the Communications Society, 2021
To solve the complex beam alignment issue in non-line-of-sight (NLOS) millimeter wave communications, this paper presents a deep neural network (DNN) based procedure to predict the angle of arrival (AOA) and angle of departure (AOD) both in terms of ...
Ruiyu Wang   +5 more
doaj   +1 more source

Performance of Angle of Arrival Detection Using MUSIC Algorithm in Inter-Satellite Link

open access: yes, 2018
An attitude of satellite is not always static, sometimes it moves randomly and the antenna pointing of satellite is harder to achieve line of sight communication to other satellite when it is outage by tumbling effect.
Muhammad, Cahya Budi   +2 more
core   +1 more source

An indoor variance-based localization technique utilizing the UWB estimation of geometrical propagation parameters [PDF]

open access: yes, 2018
A novel localization framework is presented based on ultra-wideband (UWB) channel sounding, employing a triangulation method using the geometrical properties of propagation paths, such as time delay of arrival, angle of departure, angle of arrival, and ...
Gaillot, Davy P.   +9 more
core   +2 more sources

Optical angle‐of‐arrival (AoA) sensor for the motion analysis of knee joints

open access: yesElectronics Letters, 2017
The most widely used clinical technique for estimating bone movements in knee joints with acceptable accuracy utilises implantation of heavy metallic beads into the bones. These small metallic objects become visible as highly contrasting features in captured radiographs, thus facilitating post kinematic assessment of bones in human joints with pinpoint
openaire   +1 more source

Regularised Hyper Parameter Bi Level Optimisation With Continual Learning Based Deep Neural Network for Beamforming in Ultra‐Wide Band System

open access: yesIET Communications, Volume 20, Issue 1, January/December 2026.
This research proposes a Regularised Hyperparameter Bilevel Optimisation with Continual Learning‐based Deep Neural Network (RHBO‐CLDNN) for beamforming in an Ultra‐Wide Band (UWB) system. The RHBO ensures the hyperparameter efficiency at both upper and lower levels, which allows DNN to fine‐tune the unique characteristics of the UWB system, which leads
Pradeep Kumar Siddanna   +2 more
wiley   +1 more source

2-D angle of arrival estimation using a one-dimensional antenna array [PDF]

open access: yes, 2014
In this paper, a two-dimensional (2-D) angle of arrival (AOA) estimator is presented for vertically polarised waves in which a one-dimensional (1-D) antenna array is used.
Al-Jazzar, SO   +2 more
core  

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