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Constrained detection for multiple-input multiple-output channels
GLOBECOM '05. IEEE Global Telecommunications Conference, 2005., 2005We develop a family of constrained detectors for multiple-input multiple-output (MIMO) channels by relaxing the maximum likelihood (ML) detection problem. Real constrained linear detectors and decision feedback detectors are proposed for real constellations by forcing the relaxed solution to be real.
Tao Cui, Chintha Tellambura, Yue Wu
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Multiple-input - multiple-output measurements and modeling in Manhattan
IEEE Journal on Selected Areas in Communications, 2003Narrowband 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
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Power permutation modulation in multiple‐input multiple‐output systems
Transactions on Emerging Telecommunications Technologies, 2021AbstractThe 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
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A reconfigurable multiple-input multiple-output communication system
IEEE Transactions on Wireless Communications, 2008In 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
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Determining the characteristics of systems with multiple inputs and multiple outputs
Automatic Control and Computer Sciences, 2007A 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
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Verification of multiple input/multiple output business processes
Proceedings of the 2004 IEEE International Conference on Information Reuse and Integration, 2004. IRI 2004., 2005In many business process modelling situations using Petri nets, the resulting model does not have a single input place and a single output place. Therefore, the correctness of the model cannot be assessed within the existing frameworks, which are devised for workflow nets - a particular class of Petri nets with a single input place and a single output ...
Costin Badica, Chris Fox
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Polarization characteristics of multiple-input multiple-output channels
2008 IEEE 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008In this paper, we investigate the polarization characteristics of the multiple-input multiple-output (MIMO) channels. The cross polarization discrimination (XPD) is found to change over time, while its variation in frequency domain is relatively small. The probability density function (PDF) of the XPD follows a Gaussian distribution.
Lei Jiang 0005 +4 more
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Digital prefiltering for multiple-input, multiple-output receivers
ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2002The 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
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Macrocell multiple-input multiple-output system analysis
IEEE Transactions on Wireless Communications, 2006We 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
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Capacity of the Multiple-Input, Multiple-Output Poisson Channel
Proceedings IEEE International Symposium on Information Theory,, 2003We 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
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