Results 61 to 70 of about 4,217,638 (167)
Design of Reconfigurable SDR Platform for Antenna Selection Aided MIMO Communication System
IEEE Access, 2019 In recent years, antenna selection (AS) has become one of the most popular research topics for massive multiple-input multiple-output (MIMO) system due to its capability of reducing the number of radio frequency chains utilized for MIMO communications ...
Peichang Zhang +6 more
doaj +1 more source
Applied Research, Volume 5, Issue 5, October 2026.This systematic review synthesizes recent advances in Microstrip patch antennas (MPAs) optimization research, highlighting key design targets, optimization methodologies, performance trade‐offs, and application trends. The results demonstrate that MPA optimization is an inherently multivariable problem, with trade‐offs among antenna size, impedance ...
Madihah Zakaria +6 more
wiley +1 more source
Modulation-mode assignment for SVD-assisted and iteratively detected downlink multiuser MIMO transmission schemes [PDF]
, 2011 In this contribution we jointly optimize the number of multiple-input multiple-output (MIMO) layers and the number of bits per symbol within an iteratively-detected multiuser MIMO downlink (DL) transmission scheme under the constraint of a given fixed ...
Ahrens, Andreas, Benavente Peces, César
core
Personal area networks with line-of-sight MIMO operation [PDF]
, 2006 In this paper, the results of an on-body, line-of-sight (LOS), multiple-input, multiple-output (MIMO) channel sounding investigation are reported. Transmission takes place between on-body antennas and a uniform linear array, positioned at close range and
Williams, C +7 more
core +1 more source
Semi-blind iterative joint channel estimation and K-best sphere decoding for MIMO
, 2013 An efficient and high-performance semi-blind scheme is proposed for Multiple-Input Multiple-Output (MIMO) systems by iteratively combining channel estimation with K-Best Sphere Decoding (SD).
Messier, G.G. +3 more
core +2 more sources
Engineering Reports, Volume 8, Issue 10, October 2026.In this manuscript, we propose a new scheme for signal detection in MIMO communication, based on curve fitting (CF) and supervised machine learning, which classifies received signals without emphasis and without needing to know the signal constellation, modulation system, channel estimation, and transmitter‐receiver structure of an Nt × Nr MIMO ...
Hamid Nourollahi +2 more
wiley +1 more source
Key Technologies in Massive MIMO
ITM Web of Conferences, 2018 The explosive growth of wireless data traffic in the future fifth generation mobile communication system (5G) has led researchers to develop new disruptive technologies. As an extension of traditional MIMO technology, massive MIMO can greatly improve the
Hu Qiang, Zhang Meixiang, Gao Renzheng
doaj +1 more source
Comb‐Driven Coherent Optical Transmitter for Scalable DWDM Interconnects
Laser &Photonics Reviews, Volume 20, Issue 19, 7 October 2026.A comb‐driven coherent optical transmitter on a Si/SiN platform enables scalable DWDM interconnects by integrating ultra‐compact microring‐assisted modulators and interleavers. High‐baud coherent signaling achieves 400 Gb/s per wavelength and >$>$1 Tb/s multi‐channel transmission, with projected >$>$10 Tb/s per fiber, offering a path toward energy ...
Alireza Geravand +11 more
wiley +1 more source
Energy Efficiency and Sum Rate Trade‐Offs in Multi‐Functional RIS‐Aided Wireless Communications
Radio Science, Volume 61, Issue 10, October 2026.Abstract This study introduces an innovative multi‐functional reconfigurable intelligent surface (MF‐RIS) designed to achieve a comprehensive spatial coverage and improved system performance. To maximize both the achievable sum rate and energy efficiency (EE), a non‐convex optimization framework is formulated, focusing on the adjustment of MF‐RIS ...
Wafa Abid +2 more
wiley +1 more source
Weighted target detector via estimated SNR in a multipath environment
The Journal of Engineering, 2019 Multipath effect cause serious performance degradation in low-altitude target detection. To overcome the negative multipath effect in a low-altitude environment, a novel weighted detector based on the estimated signal-to-noise ratio (ESNR) is proposed ...
Hao Zhou +3 more
doaj +1 more source