Results 111 to 120 of about 32,388 (181)

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

Synchronisation Issues in Non-coherent MIMO Systems

open access: yes
In this article, we identify some of the key problems that may be encountered when designing Non-Coherent (NC) Multiple-Input Multiple-Output (MIMO) DownLink (DL) synchronisation schemes for communicating over multi-path fading channels.
Won, SeungHwan, Hanzo, Lajos
core  

Enhanced Positioning Techniques for Hybrid Wireless Networks [PDF]

open access: yes, 2011
The objective of this paper is to propose a reliable and accurate positioning method, which provides location estimates for the mobile user in hybrid wireless network (IEEE802.11/WiFi, IEEE802.16/WiMAX and LTE technologies).
Zvikhachevskaya, Anna   +4 more
core  

Wideband analysis of indoor MIMO channels

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  

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  

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  

MIMO Assisted Space-Code-Division Multiple-Access: Linear Detectors and Performance over Multipath Fading Channels

open access: yes, 2006
In this contribution we propose and investigate a multiple-input multiple-output space-division, code-division multiple-access (MIMO SCDMA) scheme. The main objective is to improve the capacity of the existing DS-CDMA systems, for example, for supporting
Yang, L.-L.
core  

Iterative Joint Channel Estimation and Multi-User Detection for Multiple-Antenna Aided OFDM Systems

open access: yes, 2007
Multiple-Input-Multiple-Output (MIMO) Orthogonal Frequency Division Multiplexing (OFDM) systems have recently attracted substantial research interest. However, compared to Single-Input-Single-Output (SISO) systems, channel estimation in the MIMO scenario
Akhtman, J, Jiang, M, Hanzo, L.
core  

Modulation-mode and power-assignment for SVD-assisted downlink multiuser MIMO systems

open access: yes, 2010
Multiuser multiple-input multiple-output (MIMO) downlink (DL) transmission schemes experience both multiuser interference as well as inter-antenna interference.
Ahrens, Andreas, Benavente Peces, César
core   +1 more source

Comparison of Analytic Inversion Techniques for Equalisation of Highly Frequency-Selective MIMO Systems

open access: yes, 2004
This paper discusses MIMO equalisers created by analytic inversion of a known frequency-selective MIMO channel. It considers inversion performed in the $z$-domain, time-domain using convolutional matrices, and the frequency-domain.
Weiss, Stephan   +5 more
core  

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