Results 61 to 70 of about 7,551 (184)

Comparative analysis of classification techniques and input-output patterns for monthly rainfall prediction

Water Science
Rainfall prediction is one of the crucial stages of the watershed management process. In this research, A comparison of the performance among Monte Carlo and Thomas Fiering, linear regression (LR), multiple linear regression (MLR), and SVM optimized by ...
Nadia Sedghnejad, Hamed Nozari, Safar Marofi   +2 more
doaj   +1 more source

Protocol‐Agnostic Meta Key Distribution for Encrypted Wireless Communications Enabled by Space‐Time‐Coding Metasurface

Advanced Science, Volume 13, Issue 7, 3 February 2026.
This paper presents a programmable metasurface‐based Meta Key Distribution (MKD) system for secure, protocol‐independent key exchange in indoor wireless settings. By embedding entropy into the wireless channel, it enables lightweight, compatible cryptographic key generation.
Xinyu Li, Long Chen, Guanxiong Shen, Kezhan Zhao, Ze Gu, Qian Ma, Jian Wei You, Tie Jun Cui   +7 more
wiley   +1 more source

Preamble Design With Interference Cancellation for Channel Estimation in MIMO-FBMC/OQAM Systems

IEEE Access, 2018
Multiple-input multiple-output filter bank multicarrier with offset quadrature amplitude modulation (MIMO-FBMC/OQAM) system utilizes the multiple antennas technology, and it can provide more advantages than conventional FBMC/OQAM system.
Han Wang, Lingwei Xu, Xianpeng Wang, Sohail Taheri   +3 more
doaj   +1 more source

Frequency-domain equalization for OFDMA-based multiuser MIMO systems with improper modulation schemes

EURASIP Journal on Advances in Signal Processing, 2011
In this paper, we propose a novel transceiver structure for orthogonal frequency division multiple access-based uplink multiuser multiple-input multiple-output systems.
Wu Yi, Lin Zihuai, Vucetic Branka, Cowan Colin, Fagan Anthony, Xiao Pei   +5 more
doaj  

Performance evaluation of frequency division duplex (FDD) massive multiple input multiple output (MIMO) under different correlation models. [PDF]

PeerJ Comput Sci, 2022
Abdul-Hadi AM, Abdulrazzaq Naser M, Alsabah M, Abdulhussain SH, Mahmmod BM.   +4 more
europepmc   +1 more source

Adaptive Multi-Node Multiple Input and Multiple Output (MIMO) Transmission for Mobile Wireless Multimedia Sensor Networks

Sensors, 2013
Mobile wireless multimedia sensor networks (WMSNs), which consist of mobile sink or sensor nodes and use rich sensing information, require much faster and more reliable wireless links than static wireless sensor networks (WSNs).
Cheolwoo You, Ji-Woong Choi, Sunghyun Cho   +2 more
doaj   +1 more source

Multiple-Input Multiple-Output (MIMO) Optical Wireless Communications

, 2012
People’s ideas about communications have changed completely, nowadays when this subject is mentioned almost everyone thinks of wireless communications. The demand for broadband wireless communications offering greater and greater data rates is endless, and the radio-technology community is trying harder and harder to satisfy this demand.
openaire   +3 more sources

MIMO Underwater Acoustic Communications in Ports and Shallow Waters at Very High Frequency

Journal of Sensor and Actuator Networks, 2013
Hermes is a Single-Input Single-Output (SISO) underwater acoustic modem that achieves very high-bit rate digital communications in ports and shallow waters. Here, the authors study the capability of Hermes to support Multiple-Input-Multiple-Output (MIMO)
Gaultier Real, Pierre-Philippe Beaujean, Pierre-Jean Bouvet   +2 more
doaj   +1 more source

Downlink Multiple Input Multiple Output Mixed Sparse Code Multiple Access for 5G System

IEEE Access, 2018
For downlink multiple-input multiple-output-sparse code multiple access (MIMO-SCMA) system, the convergence reliability of the detected codeword in each decision process is unsatisfactory at the message passing algorithm receiver. To address this problem,
Cheng Yan, Ningbo Zhang, Guixia Kang
doaj   +1 more source