Ara
Toplam kayıt 186, listelenen: 171-180
Sparsifying dictionary learning for beamspace channel representation and estimation in millimeter-wave massive MIMO
(Institute of Electrical and Electronics Engineers Inc., 2023)
Millimeter-wave (mmWave) massive multiple-input-multiple-output (mMIMO) is reported as a key enabler in fifth-generation communication and beyond. It is customary to use a lens antenna array to transform a mmWave mMIMO ...
An ultra-wide band MIMO antenna system with enhanced isolation for microwave imaging applications
(MDPI, 2023)
This paper introduces a novel two-port ultra-wideband (UWB) multiple-input multiple-output (MIMO) antenna system with enhanced isolation characteristics. The antenna, designed on a thin 0.787 mm RO5880 substrate, achieves ...
mmWave polarization diversity wideband multiple-input/multiple-output antenna system with symmetrical geometry for future compact devices
(MDPI, 2023)
The fifth generation (5G) of mobile networks is a significant technological advancement in telecommunications that provides faster data speeds, lower latency, and greater network capacity. One of the key technologies that ...
PLS-IoT enhancement against eavesdropping via spatially distributed constellation obfuscation
(Institute of Electrical and Electronics Engineers Inc., 2023)
Wireless communication has become a ubiquitous facet of modern-day life. With the advent of Internet of Things (IoT) and massive machine-type connectivity, the number of devices is expected to increase even more. However, ...
Ultra-wideband fractal ring antenna for biomedical applications
(Hindawi Limited, 2023)
In this paper, an efficient, coplanar waveguide (CPW)-fed printed circular ring fractal ultra-wideband (UWB) antenna is presented for biomedical applications. In UWB technology, short-range wireless communication is possible ...
A four element stringray-shaped MIMO antenna system for UWB applications
(Multidisciplinary Digital Publishing Institute (MDPI), 2023)
This paper presents a CoPlanar-Waveguide (CPW)-fed stingray-shaped Ultra-WideBand (UWB) Multiple-Input–Multiple-Output (MIMO) antenna system designed for microwave imaging applications. Featuring a diagonal square with ...
Side-edge dual-band MIMO antenna system for 5G cellular devices
(Elsevier GmbH, 2024)
An eight-element multiple-input multiple-output (MIMO) antenna system is presented for two distinct 5G allocated bands, i.e., 3.5 and 5.2 GHz. The MIMO radiating elements are printed on each side of the mobile phone chassis, ...
FDTD-based SAR calculation of a wearable antenna for wireless body area network devices
(Cambridge University Press, 2023)
Wireless-connected wearable electronics are finding extensive usage for diagnostic and therapeutic purposes after the globally spread pandemic disease of COVID-19. Although they are undoubtedly helpful for keeping physical ...
Sequency index modulation: A novel index modulation for delay-sequency domain waveforms
(Institute of Electrical and Electronics Engineers Inc., 2023)
In this letter, the sequency domain is introduced as a novel resource to propose a new index modulation, which is named sequency index modulation (SeIM). In SeIM, information bits are implicitly conveyed through the indices ...
Eight element dual-band MIMO array antenna for modern fifth generation mobile phones
(Elsevier GmbH, 2024)
In this paper, an eight-element multiple-input multiple-output (MIMO) antenna with dual-band response is designed for fifth-generation (5G) mobile devices. The proposed MIMO systems’ radiators are placed in the inner side ...