Results 91 to 100 of about 20,804 (217)

Robust MMSE Precoding Strategy for Multiuser MIMO Relay Systems with Switched Relaying and Side Information [PDF]

open access: yes, 2013
In this work, we propose a minimum mean squared error (MMSE) robust base station (BS) precoding strategy based on switched relaying (SR) processing and limited transmission of side information for interference suppression in the downlink of multiuser ...
Yang, Lie-Liang   +7 more
core   +1 more source

Super low profile 5G mmWave highly isolated MIMO antenna with 360∘ pattern diversity for smart city IoT and vehicular communication

open access: yesResults in Engineering
This study introduces a planar folded super low profile 5G mmWave monopole antenna for small IoT devices with superior efficiency and gain. Low-loss Rogers RT-5880 substrate material has been utilized to achieve higher efficiency, gain, and diversity ...
Dipon Saha   +2 more
doaj   +1 more source

Self-Decoupled Quad-Port CPW-Fed Fractal MIMO Antenna With UWB Characteristics

open access: yesInternational Journal of Antennas and Propagation
In this work, a novel fractal multiple-input multiple-output (MIMO) antenna is designed for ultrawideband (UWB) applications. The radiating structure of the MIMO configuration employs a circular fractalradiating structure excited through a modified ...
Mian Muhammad Kamal   +5 more
doaj   +1 more source

An experimental evaluation of three candidate MIMO array designs for PDA devices

open access: yes, 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  

Unified MIMO-multicarrier designs: a space–time shift keying approach [PDF]

open access: yes, 2015
A survey and tutorial is provided on the subject of multiple-input multiple-output (MIMO) multicarrier (MC) systems relying on the space-time shift keying concept.
Sugiura, Shinya   +3 more
core   +1 more source

MIMO channels from multipath parameter extraction vs. direct measurements

open access: yes, 2004
This paper presents a capacity based analysis of directional Multiple-Input Multiple-Output (MIMO) channel measurements that were conducted with (16 x 16) element Uniform Circular Arrays (UCA) of patch antennas.
Tan, CM, Pal, A, Beach, MA
core  

Transmit Diversity Assisted Space Shift Keying for Colocated and Distributed/Cooperative MIMO Elements [PDF]

open access: yes, 2011
Space Shift Keying (SSK) modulation is a recently proposed MIMO technique, which activates only a single transmit antenna during each time slot and uses the specific index of the activated transmit antenna to implicitly convey information.
Yang, Lie-Liang   +7 more
core   +1 more source

Design and Performance Evaluation of Orthogonally Polarized Corporate Feed MIMO Antenna Array for Next-Generation Communication System

open access: yesIEEE Access
This study presents a novel, compact, diamond-shaped Multiple Input Multiple Output (MIMO) antenna system for 5G wireless communication. The proposed MIMO antenna system encompasses an array configuration, with each array unit comprising two antenna ...
Kiran Raheel   +5 more
doaj   +1 more source

Virtual Antenna Array Analysis for MIMO Synthetic Aperture Radars

open access: yesInternational Journal of Antennas and Propagation, 2012
Multiple-input multiple-output (MIMO) synthetic aperture radar (SAR) that employs multiple antennas to transmit orthogonal waveforms and multiple antennas to receive radar echoes is a recently proposed remote sensing concept.
Wen-Qin Wang
doaj   +1 more source

High-performance WLAN architectures using MIMO technology in Line-of-Sight

open access: yes, 2006
This paper investigates the Packet-Error-Rate (PER) and throughput performance of WLANs in Line-of-Sight (LoS) conditions. A novel antenna array architecture is proposed as a way of overcoming the problem of excessive correlation under these conditions ...
Sarris, I, Nix, AR, Doufexi, A
core  

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