Results 81 to 90 of about 152,630 (212)

INFLUENCE OF DOPPLER EFFECTS ON 2×2 TO 4×4 MIMO SYSTEMS WITH DIRECT LINE-OF-SIGHT PATH BY RICIAN FADING DISTRIBUTION

Information and Telecommunication Sciences, 2020
Background. For multiplying the capacity of a radio link by using multiple antennas at the transmitter and receiver ends, wireless communication networks use the MIMO technique.
Vadim Romanuke
doaj   +1 more source

Massive MIMO for Internet of Things (IoT) Connectivity

, 2019
Massive MIMO is considered to be one of the key technologies in the emerging 5G systems, but also a concept applicable to other wireless systems. Exploiting the large number of degrees of freedom (DoFs) of massive MIMO essential for achieving high ...
Abrão, Taufik, Bana, Alexandru-Sabin, de Carvalho, Elisabeth, Larsson, Erik G., Marinello, José Carlos, Popovski, Petar, Soret, Beatriz   +6 more
core   +1 more source

Data privacy model using blockchain reinforcement federated learning approach for scalable internet of medical things

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Internet of Medical Things (IoMT) has typical advancements in the healthcare sector with rapid potential proof for decentralised communication systems that have been applied for collecting and monitoring COVID‐19 patient data. Machine Learning algorithms typically use the risk score of each patient based on risk factors, which could help ...
Chandramohan Dhasaratha, Mohammad Kamrul Hasan, Shayla Islam, Shailesh Khapre, Salwani Abdullah, Taher M. Ghazal, Ahmed Ibrahim Alzahrani, Nasser Alalwan, Nguyen Vo, Md Akhtaruzzaman   +9 more
wiley   +1 more source

2D Active Antenna Array Design for FD-MIMO System and Antenna Virtualization Techniques

International Journal of Antennas and Propagation, 2015
Full dimension MIMO (FD-MIMO) is one of the key technologies presently studied in the 3GPP for the next generation long-term evolution advanced (LTE-A) systems.
Ioannis Tzanidis, Yang Li, Gary Xu, Ji-Yun Seol, JianZhong (Charlie) Zhang   +4 more
doaj   +1 more source

Upper Capacity Bounds of MIMO Wireless Systems Through Fading Channels

Advances in Electrical and Electronic Engineering, 2015
This paper investigates the upper capacity bounds of MIMO systems with correlation and antenna selection techniques in general fading environments. With Antenna Selection techniques, the increased hardware complexity due to multiple antennas and large ...
Rachna Mahey, Jyoteesh Malhotra
doaj   +1 more source

Polar subcodes for MIMO systems

CoRR
Polar-coded multiple-input multiple-output systems are investigated. An advanced receiver implementing joint list decoding of polar codes and QR- and MMSE-based detectors is proposed. The approximate and exact path metrics are derived for joint list decoder of polar codes.
Liudmila Karakchieva, Peter Trifonov
openaire   +2 more sources

Evaluating MIMO-VLC System Performance: Modulation Techniques and Ambient Light Interference Effects

Photonics
Visible light communication (VLC) is an emerging optical wireless technology capable of delivering high data rates for both indoor and outdoor environments.
Emad S. Hassan, Abdoh Jabbari, Ayman A. Alharbi   +2 more
doaj   +1 more source

Out-of-Band Radiation Measure for MIMO Arrays with Beamformed Transmission

, 2015
The spatial characteristics of the out-of-band radiation that a multiuser MIMO system emits in the environment, due to its power amplifiers (modeled by a polynomial model) are nonlinear, is studied by deriving an analytical expression for the continuous ...
Eriksson, Thomas, Gustavsson, Ulf, Larsson, Erik G., Mollén, Christopher   +3 more
core   +1 more source

TD3 Deep Reinforcement Learning Control Approach for a DC‐DC Multiport Converter Used in Low‐Power EV Applications

IET Smart Energy Systems, EarlyView.
A TD3‐based deep reinforcement learning controller is developed for a multiport converter in low‐power EV applications. The data‐driven, model‐free strategy improves dynamic performance under constant power load destabilisations and demonstrates advanced intelligent control suited for next‐generation smart and integrated energy systems.
Amirhossein Hosseini, Saeed Hosseinnataj, Ali Arzani   +2 more
wiley   +1 more source

A Comparative Analysis of DNN and Conventional Signal Detection Techniques in SISO and MIMO Communication Systems

Telecom
This paper investigates the performance of deep neural network (DNN)-based signal detection in multiple input, multiple output (MIMO), communication systems.
Hamna Shoukat, Abdul Ahad Khurshid, Muhammad Yunis Daha, Kamal Shahid, Muhammad Usman Hadi   +4 more
doaj   +1 more source