Results 21 to 30 of about 152,630 (212)

Scaling up MIMO: Opportunities and Challenges with Very Large Arrays [PDF]

open access: yes, 2012
This paper surveys recent advances in the area of very large MIMO systems. With very large MIMO, we think of systems that use antenna arrays with an order of magnitude more elements than in systems being built today, say a hundred antennas or more ...
Buon Kiong Lau   +19 more
core   +2 more sources

On the degree of MIMO systems [PDF]

open access: yes2007 IEEE International Symposium on Circuits and Systems (ISCAS), 2007
MIMO channels and wireless communications systems have generated a great deal of renewed interest in linear system theory. This paper presents two results. The first is a simple proof based on first principles, of the known fact that the McMillan degree of a causal M times M MIMO system is at least as large as the degree of its determinant.
openaire   +2 more sources

The influence of nonlinear effects on the spectral efficiency of multiinput antenna systems

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2015
The analysis technique and design algorithm are proposed for multiinput antenna systems, based on the mathematical model developed. The technique and algorithm described allow the analysis of a wide class of multiinput systems, in particular, MIMO ...
Ju. V. Vishniakova
doaj   +1 more source

Weighted target detector via estimated SNR in a multipath environment

open access: yesThe 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

Capacity Optimization of MIMO Systems Involving Conformal Antenna Arrays using a Search Group Algorithm

open access: yesAlgerian Journal of Signals and Systems, 2020
MIMO systems constitute a backbone of the fourth and fifth generations of wireless communication systems. The purpose of this paper is to introduce the involvement of conformal antenna arrays into MIMO systems.
Abdelmadjid RECIOUI
doaj   +1 more source

Signal detection of large scale MIMO physical layer space optical communication system based on genetic algorithm

open access: yesResults in Physics, 2023
In order to understand the signal detection design of large-scale MIMO physical layer spatial optical communication systems, the author proposes a research on signal detection of large-scale MIMO physical layer spatial optical communication systems based
Min Ma
doaj   +1 more source

Pedestrians effects on indoor MIMO-OFDM channel capacity [PDF]

open access: yes, 2009
Temporal variations caused by pedestrian movement can significantly affect the channel capacity of indoor MIMOOFDM wireless systems. This paper compares systematic measurements of MIMO-OFDM channel capacity in presence of pedestrians with predicted MIMO ...
Das Gupta, Jishu, Ziri-Castro, Karla
core   +2 more sources

Bootstrap frequency equalisation for MIMO wireless systems [PDF]

open access: yes, 2003
The paper reports on a new class of equalisation/detection for wideband multiple input-multiple output (MIMO) communications systems. The proposed scheme is somewhat akin to a multi-carrier MIMO system, and more precisely, builds upon a single carrier ...
Fletcher, PN   +4 more
core   +2 more sources

MU-MIMO in LTE Systems

open access: yesEURASIP Journal on Wireless Communications and Networking, 2011
A relatively recent idea of extending the benefits of MIMO systems to multiuser scenarios seems promising in the context of achieving high data rates envisioned for future cellular standards after 3G (3rd Generation). Although substantial research has been done on the theoretical front, recent focus is on making Multiuser Multiple-Input Multiple-Output
Deepaknath Tandur   +10 more
openaire   +2 more sources

Controllability of networked MIMO systems [PDF]

open access: yesAutomatica, 2016
15 pages, 4 ...
Lin Wang 0022   +3 more
openaire   +2 more sources

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