Results 71 to 80 of about 41,590 (218)

Performance Analysis of MIMO STBC System in Flat Fading and Frequency Selective Fading Channels

open access: yesJournal of Electrical, Electronics and Informatics, 2019
Multiple Input Multiple Output (MIMO) technology is a technique that can be used to overcome multipath fading. The multipath fading is caused by signals coming from several paths that experience different attenuations, delays and phases.
Pebri Yeni Samosir   +3 more
doaj   +1 more source

A Multi‐Node Wearable Monitoring System for Firefighters With Edge AI and LoRa‐BLE Heterogeneous Communication

open access: yesSafety Science and Technology, EarlyView.
A multinode wearable system tailored for firefighters is presented, featuring LoRa‐BLE heterogeneous communication and edge‐side deep learning. It integrates a lightweight 1D‐CNN for real‐time posture recognition and an adaptive Physiological Strain Index (aPSI) model, ensuring reliable status monitoring and safety warning in complex fireground ...
Chongyuan Ni   +8 more
wiley   +1 more source

Effective Throughput Analysis of α-η-κ-μ Fading Channels

open access: yesIEEE Access, 2020
The α-η-κ-μ fading model is a very useful instrument to accurately describe various radio wave propagation scenarios. In this paper, we study the effective throughput performance of communication systems over the α ...
Yun Ai   +3 more
doaj   +1 more source

Effective Capacity Analysis Over Generalized Composite Fading Channels

open access: yesIEEE Access, 2020
A performance analysis of the effective capacity in two recently proposed generalized composite fading channels, namely $\kappa $ - $\mu $ /inverse gamma and $\eta $ - $\mu $ /inverse gamma composite fading channels, is conducted. To this end, accurate
Seong Ki Yoo   +4 more
doaj   +1 more source

Harnessing Human Mobility Data for Applied Economic Research: Current Knowledge, Challenges, and Emerging Opportunities

open access: yesJournal of Economic Surveys, EarlyView.
ABSTRACT This paper reviews how large‐scale mobility data can enhance economic analyses, highlighting its contributions to understanding travel behavior, labor markets, social interactions, and health outcomes. We discuss its advantages over traditional mobility data sources, which include real‐time location information and fine spatial resolution ...
Cristina Connolly   +3 more
wiley   +1 more source

Differentiable architecture search-based automatic modulation recognition for multi-carrier signals

open access: yesTongxin xuebao
Considering the lack of a general multi-carrier signal dataset in urban multipath channels, and the challenge of recognizing the modulation types of distorted signals at low signal-to-noise ratio (SNR), a differentiable architecture search-based (DARTS ...
LI Jie, LI Jing, LYU Lu, GONG Fengkui
doaj   +2 more sources

Energy-Efficient Power Control in Multipath CDMA Channels via Large System Analysis

open access: yes, 2008
This paper is focused on the design and analysis of power control procedures for the uplink of multipath code-division-multiple-access (CDMA) channels based on the large system analysis (LSA).
Buzzi, Stefano   +2 more
core   +1 more source

Symbol‐Level GRAND‐Assisted Detection for Polar‐Coded Spatial Modulation in MIMO Systems

open access: yesInternational Journal of Communication Systems, Volume 39, Issue 7, 10 May 2026.
This research presents an integrated polar‐coded spatial modulation (PCSM) transceiver scheme for MIMO transmission over Rayleigh fading channels. The proposed architecture employs linear spatial signal processing for antenna and symbol estimation, followed by symbol‐level guessing random additive noise decoding (symbol‐level GRAND)–assisted detection ...
Abhilasha Gautam   +2 more
wiley   +1 more source

A Statistical Analysis of Multipath Interference for Impulse Radio UWB Systems

open access: yes, 2014
In this paper, we develop a statistical characterization of the multipath interference in an Impulse Radio (IR)-UWB system, considering the standardized IEEE 802.15.4a channel model.
Azou, Stéphane   +3 more
core   +2 more sources

MXene‐Coated 3D Printed Horn Antennas for Ku Frequency Band

open access: yesAdvanced Materials Technologies, Volume 11, Issue 9, 6 May 2026.
An additive manufacturing approach to 3D printing horn antennas and coating them with Ti3C2Tx MXene is proposed. Rapid fabrication of lightweight, high‐performance antennas operating in the Ku‐band (12.4–18 GHz) has been demonstrated. The MXene‐coated antennas exhibit comparable electromagnetic performance to conventional, costly aluminum ones, with ...
Zahra Sarpanah Sourkouhi   +3 more
wiley   +1 more source

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