Results 101 to 110 of about 7,875,183 (224)

Uniform Quantization for Multi-Antenna Amplify–Quantize–Forward Relay

open access: yesIEEE Access
In this paper, we investigate a multi-antenna amplify-quantize–forward (AQF) relay system, where a half-duplex relay quantizes both the real and imaginary components of amplified received signals, storing them in memory before forwarding them to a
Gangsan Jeong, Xianglan Jin
doaj   +1 more source

Investigation of MIMO Channel Characteristics in a Two-Section Tunnel at 1.4725 GHz

open access: yesInternational Journal of Antennas and Propagation, 2017
This paper presents results from a wide band single-input–single-output (SISO) and 16 × 16 virtual multiple-input–multiple-output (MIMO) measurement campaign at a center frequency of 1.4725 GHz in a 100-meter long tunnel laboratory which is terminated by
Rongchen Sun   +5 more
doaj   +1 more source

Adaptive widely linear processing for MIMO systems

open access: yesRevista Tecnologia, 2010
Wireless communication systems using two or more transmit antennas and one or more receiving antennas have emerged in recent years. There are several reasons for this to be occurring, including: the increasing demand for high data rate, high user ...
Francisco José Alves de Aquino
doaj  

Sparse Grassmannian Design for Noncoherent Codes via Schubert Cell Decomposition

open access: yesIEEE Open Journal of the Communications Society
In this paper, we propose a method for designing sparse Grassmannian codes for noncoherent multiple-input multiple-output systems. Conventional pairwise error probability formulations under uncorrelated Rayleigh fading channels fail to account for rank ...
Joe Asano   +5 more
doaj   +1 more source

Phase Noise Effects in Synchronized Wireless Networks for MIMO-OFDM [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2014
Channel impairments effects are evaluated by inclusion of phase noise in a synchronization error correction algorithm for MIMO (Multiple Input Multiple Output) OFDM (Orthogonal Frequency Division Multiplexing) systems.
Muhammad Khurram Kiyani, Asim Loan
doaj  

Wideband analysis of indoor MIMO channels [PDF]

open access: yes, 2002
The application of MIMO communication systems in real environments will invariably require systems to operate over wideband channels. Although suitable techniques for processing wideband MIMO channels have been reported, their evaluation has mainly been ...
McNamara, DP, Fletcher, PN, Beach, MA
core  

Robust stability and performance analysis for multiple model adaptive controllers

open access: yes
—For an Estimation Based Multiple Model Switched Adaptive Control (EMMSAC) algorithm controlling a MIMO minimal LTI plant, $l_p,\ 1\le p\le \infty$ bounds on the gain from the input and output disturbances to the internal signals are obtained which are ...
Buchstaller, Dominic, French, Mark
core   +1 more source

A universal space-time architecture for multiple-antenna aided systems

open access: yes, 2012
In this tutorial, we first review the family of conventional multiple-antenna techniques, and then we provide a general overview of the recent concept of the powerful Multiple-Input Multiple-Output (MIMO) family based on a universal Space-Time Shift ...
Sugiura, Shinya   +2 more
core   +1 more source

Adaptive Bayesian Space-Time Equalisation for Multiple Receive-Antenna Assisted Single-Input Multiple-Output Systems

open access: yes, 2008
This contribution considers nonlinear space–time equalisation (STE) for multiple receive-antenna induced single-input multipleoutput (SIMO) systems. By exploiting the inherent symmetry of the underlying optimal Bayesian STE solution, a novel symmetric ...
Liu, Sheng, Chen, Sheng, Hanzo, Lajos
core   +1 more source

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