Results 61 to 70 of about 8,432,365 (193)
Depth-first and breadth-first search based multilevel SGA algorithms for near optimal symbol detection in MIMO systems [PDF]
, 2008 The multilevel structure of the N-QAM modulation constellations is exploited to significantly reduce the complexity of the sequential Gaussian approximation (SGA) algorithm for near optimal symbol detection in spatial multiplexing multiple- input ...
Sandell, M +3 more
core +1 more source
Joint Radar-Communication System Design Based on FDA-MIMO via Frequency Index Modulation
IEEE Access, 2023 The index modulation based on multiple-antenna architecture is a prospective information embedding approach for the joint radar-communication system (JRCS).
Mengjiao Li, Wen-Qin Wang
doaj +1 more source
Frozen Differential Scattering in Reconfigurable Complex Media
Laser &Photonics Reviews, Volume 20, Issue 11, 5 June 2026.A localized perturbation universally results in a rank‐one update of the scattering matrix of any complex medium. The resulting differential output wavefront is “frozen”: its spatial pattern is fixed (agnostic to the input wavefront). Experiments with a programmable‐metasurface‐parametrized wireless link validate frozen differential scattering and ...
Philipp del Hougne
wiley +1 more source
Dynamic Multifunctional Metasurfaces Based on Passive Cascade Structure
Electron, Volume 4, Issue 2, May 2026.A dynamic multifunctional metasurface is proposed in this paper. Unlike mainstream multifunctional metasurface based on programmable metasurfaces, it consists of two passive metasurfaces, presenting a significant cost advantage. By controlling the displacement, different functions such as beam steering, focusing, and OAM wave generation can be realized
Xiangming Wu +5 more
wiley +1 more source
Advanced Photonics Research, Volume 7, Issue 4, April 2026.This review chronicles the evolution of intelligent electromagnetic (EM) perception systems empowered by metasurfaces and artificial intelligence. The progression from data‐driven imaging with implicit priors to semantic sensing with explicit priors is systematically reviewed.
Xingrui Zhou +5 more
wiley +1 more source
An experimental evaluation of three candidate MIMO array designs for PDA devices [PDF]
, 2004 It is well known that multiple-input, multiple-output (MIMO) wireless channels, in which multi-element antenna arrays are used at both ends of the link, can in principle offer spectral efficiencies an order of magnitude or more above those available ...
Williams, C +8 more
core
MIMO detection in analog VLSI [PDF]
, 2006 In this paper we propose an analog VLSI approach to maximum a posteriori (MAP) detection in multiple-input multiple-output (MIMO) systems. This detector can be seen as an extension of the well known analog decoding concept for error correcting codes, as ...
McNamara, DP +3 more
core +1 more source
Taxonomy of IMT Interference on Aeronautical Systems
Radio Science, Volume 61, Issue 4, April 2026.Abstract The rapid deployment of 5G and future 6G networks has raised concerns about interference with critical aeronautical systems, particularly radio altimeters and Wireless Avionics Intra‐Communications (WAIC). This paper offers a comprehensive taxonomy of the 5G/6G signal interference mechanisms, operational impacts, and mitigation strategies in ...
Valéria C. M. N. Leite, Alison Moraes
wiley +1 more source
Semi-blind adaptive spatial equalisation for MIMO systems with high-order QAM signalling
, 2008 This contribution investigates semi-blind adaptive spatial filtering or equalisation for multiple-input multiple-output (MIMO) systems that employ high-throughput quadrature amplitude modulation (QAM) signalling.
Chen, Sheng, Hanzo, Lajos, Yao, Wang
core +1 more source
General space-time clutter model for multi-channel airborne radar
The Journal of Engineering, 2019 Ground clutter of looking-down airborne radar is spread in Doppler because of the platform motion, and thus the interested moving targets may be masked by the ground clutter.
Li Xinzhe +3 more
doaj +1 more source