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Linear receivers for the multiple-input multiple-output multiple-access channel

IEEE Transactions on Communications, 2006
We consider a multiuser multiple-input multiple-output (MIMO) communication system using code-division multiple access (CDMA) and multiuser detection to discriminate the different users. Our focus is on the CDMA uplink of a frequency-nonselective Rayleigh fading channel.
NORDIO, ALESSANDRO, TARICCO, GIORGIO
openaire   +2 more sources

A reconfigurable multiple-input multiple-output communication system

IEEE Transactions on Wireless Communications, 2008
In this paper, we present a theoretical analysis on the gains offered by a reconfigurable multiple-input multiple-output (MIMO) system using orthogonal space-time block codes (OSTBCs) and reconfigurable antennas at the receiver only. The proposed system using reconfigurable antennas selects the optimal radiation state of the receive antennas in which ...
Alfred Grau   +2 more
openaire   +1 more source

Determining the characteristics of systems with multiple inputs and multiple outputs

Automatic Control and Computer Sciences, 2007
A simple and computationally efficient method of determining the transfer function and other characteristics of systems with multiple inputs and multiple outputs (MIMO systems) described by autoregression equations is proposed. The method is based on the use of the discrete Fourier transformation.
Kazys Kazlauskas, Jaunius Kazlauskas
openaire   +1 more source

Power permutation modulation in multiple‐input multiple‐output systems

Transactions on Emerging Telecommunications Technologies, 2021
AbstractThe forthcoming communications standards are conjectured to require unprecedentedly high spectral efficiency values. Motivated by this fact, we propose a new transmission scheme for multiple‐input multiple‐output systems, which is termed as power permutation modulation (PPM). In addition to the conventional data‐carrying modulated symbols, some
Serdar Özyurt, Oguz Kucur
openaire   +3 more sources

Multiple-input - multiple-output measurements and modeling in Manhattan

IEEE Journal on Selected Areas in Communications, 2003
Narrowband multiple-input-multiple-output (MIMO) measurements using 16 transmitters and 16 receivers at 2.11 GHz were carried out in Manhattan. High capacities were found for full, as well as smaller array configurations, all within 80% of the fully scattering channel capacity. Correlation model parameters are derived from data.
Dmitry Chizhik   +5 more
openaire   +1 more source

Macrocell multiple-input multiple-output system analysis

IEEE Transactions on Wireless Communications, 2006
We develop a semi-deterministic semi-stochastic channel model for the multiple-input multiple-output (MIMO) system under the macrocell environment with local-to-mobile and local-to-base scatterers. We show that employing closely-spaced antennas (e.g., phased array) at the base station is capable of achieving diversity via the local-to-base scatterers ...
Gang Shi, Arye Nehorai
openaire   +1 more source

Capacity of the Multiple-Input, Multiple-Output Poisson Channel

Proceedings IEEE International Symposium on Information Theory,, 2003
We examine the Shannon capacity of the single-user, multiple-input, multiple-output (MIMO) Poisson channel with peak and average transmit power constraints. We derive upper and lower bounds on the capacity that coincide in a number of special cases.
S.M. Haas, J.H. Shapiro
openaire   +1 more source

On the capacity of multiple input multiple output broadcast channels

2002 IEEE International Conference on Communications. Conference Proceedings. ICC 2002 (Cat. No.02CH37333), 2003
We consider a multiuser multiple input multiple output (MIMO) Gaussian broadcast channel (BC), where the transmitter and receivers have multiple antennas. Since the MIMO broadcast channel is in general a non-degraded broadcast channel, its capacity region remains an unsolved problem.
Sriram Vishwanath   +2 more
openaire   +1 more source

Digital prefiltering for multiple-input, multiple-output receivers

ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2002
The whitened matched filter (WMF) and the finite-length feed-forward filter (FFF) of a minimum mean-squared error decision feedback equalizer are compared for use as digital prefilters in a multiple-input, multiple-output (MIMO) receiver front-end. For systems that are single-input, single-output (SISO), existing literature has shown the FFF approaches
Casey L. Miller, Desmond P. Taylor
openaire   +1 more source

Multiple-Input Multiple-Output SAR

2017
For the conventional SAR, the swath width and azimuth resolution are contradictions because of the limitations of minimum antenna area, so they cannot be improved simultaneously.
Ruliang Yang   +6 more
openaire   +1 more source

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