Results 71 to 80 of about 61,754 (211)
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 +7 more
wiley +1 more source
Field-Theoretical Investigations of the Influence of Mutual Coupling Effects on the Capacity of MIMO Wireless Links [PDF]
Advances in Radio Science, 2005 We present a MIMO channel model which takes into account mutual coupling effects at the receiver and transmitter array in order to assess the influence of mutual coupling effects on the capacity of MIMO channels.
H. Ndoumbè Mbonjo Mbonjo +2 more
doaj
A Car Logo Design-Inspired CPW-Fed Semitransparent Antenna for Vehicular Applications
International Journal of Antennas and Propagation, 2023 In this paper, a quad-port multiple-input multiple-output (MIMO) semitransparent antenna is designed for automotive applications. The transparent soda lime glass substrate is used in the prototype antenna for windshield applications, and the radiator is ...
Lekha Kannappan +3 more
doaj +1 more source
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 17-33, January/February 2026.In this paper, we investigate the application of signal‐to‐leakage‐plus‐noise ratio (SLNR) beamforming to low Earth orbit non‐terrestrial networks. The SLNR criterion aims at maximizing the received desired signal power for each user while minimizing the overall interference power caused by each user to all other co‐channel receivers. We show that such
M. Rabih Dakkak +3 more
wiley +1 more source
Optimal Transmit Antenna Selection for Massive MIMO Wiretap Channels
, 2018 In this paper, we study the impacts of transmit antenna selection on the secrecy performance of massive MIMO systems. We consider a wiretap setting in which a fixed number of transmit antennas are selected and then confidential messages are transmitted ...
Asaad, Saba +4 more
core +1 more source
Unbroken Metal Rim MIMO Antenna Utilizing Antenna Clusters [PDF]
IEEE Antennas and Wireless Propagation Letters, 2019 This letter presents an antenna system for mobile devices with an unbroken metal rim. By utilizing the characteristic mode analysis for the unbroken metal rim, efficient multiple-input–multiple-output operation can be achieved. The design is based on an antenna cluster technique that uses several coupled elements that are used to efficiently excite the
Hannula, Jari Matti +5 more
openaire +3 more sources
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 47-59, January/February 2026.The performance limitation in multiple‐input multiple‐output (MIMO) feeder links due to time and phase misalignment of the ground stations is investigated. Time and phase distribution over optical fiber is considered as an approach to achieve the synchronization requirements.
Eriserdi Mollaymeri +2 more
wiley +1 more source
5G new radio multiuser precoding in geostationary satellite networks
International Journal of Satellite Communications and Networking, Volume 44, Issue 1, Page 60-72, January/February 2026.This work evaluates the standardized 5G new radio codebooks for closed‐loop multiuser precoding in GEO multibeam scenarios and derives a list of recommended 3GPP standard modifications for a proper support to GEO mission needs. Summary The multiuser precoding procedures standardized by the 3rd Generation Partnership Project (3GPP) for new radio (NR ...
Xavier Artiga, Miguel Ángel Vázquez
wiley +1 more source
, 2018 This paper presents an evaluation of distortion and interference sources, namely, the harmonic distortion and antenna crosstalk, originating within a 2 x 2 millimeter-wave (mm-wave) multiple-input-multiple-output (MIMO) testbed.
Buisman, Koen +3 more
core +1 more source
Advanced Optical Materials, Volume 14, Issue 1, 9 January 2026.A diffractive neural networkdesigned metasurface operating at 86 GHz generates multiple holographic patterns by controlling the phase of subwavelength unit cells. A phase‐smoothing regularization mitigates mutual coupling, enabling accurate multifunctional wavefront shaping.
Damián Rodríguez‐Trujillo +5 more
wiley +1 more source