نتایج جستجو برای: tone dmt modulation

تعداد نتایج: 178825  

Journal: :IEEE Trans. Communications 1995
Peter S. Chow John M. Cioffi John A. C. Bingham

In this paper, we present a finite-granularity, loading algorithm for a Discrete Multitone (DMT) modulation system. The proposed algorithm offers significant implementational advantages over the well-known water-pouring method and the earlier Hughes-Hartogs algorithm, while typically suffering only negligible performance degradation relative to the optimal solution. We also present simulation r...

Journal: :international journal of civil engineering 0
f. messaoud university of tebessa m. s. nouaouria university of guelma

this paper presents a description of the equipment, testing procedure, and methodology to obtain ground mechanical parameters. the p-y curves for laterally loaded piles are developed. methods for the development of p-y curves from pressure meter and dilatometer (dmt) test are described. p-y curves are used in the analysis to represent lateral soil-pile interaction. the pressure meter offers an ...

2005

Even though we do have on going research on traditional OFDM/DMT techniques, part of our research in multicarrier communication concentrates on filter bank-based multicarrier modulation. We refer to this as cosine-modulated filter bank multicarrier modulation (CMFB-MCM) or cosine-modulated multitone (CMT), for a shorter terminology. In the past, under the name discrete wavelet multitone (DWMT) ...

2003
Georg Tauböck

We consider Discrete Multitone (DMT, baseband OFDM) modulation and perform a detailed noise analysis which takes into account dependencies and power differences of real and imaginary part after the complex valued discrete Fourier transform (DFT). We show that for colored noise rotated rectangular symbol constellations are more appropriate than the common (quadratic) QAM symbol constellations wi...

Journal: :Optics express 2012
G Cossu A M Khalid P Choudhury R Corsini E Ciaramella

In this paper, we experimentally realized a gigabit-class indoor visible light communication system using commercially available RGB White LED and exploiting an optimized DMT modulation. We achieved data rate of 1.5 Gbit/s with single channel and 3.4 Gbit/s by implementing WDM transmission at standard illumination levels. In both experiments, the resulting bit error ratios were below the FEC li...

2015
Adrian Roşca Suzana Elena Voiculescu Bogdan Ovidiu Popescu Ana-Maria Zăgrean

Taurine, an ubiquitary amino acid in the organism, has important physiological functions like bile salt formation, neuronal excitability regulation, immunomodulation, electrolytes homeostasis preservation, osmoregulation, membrane stabilisation, apoptosis inhibition and cell protection. This review article is focusing on the complex vasoactive influence of the sulphur-amino acid and on the poss...

Journal: :Human movement science 2011
T W Cacciatore V S Gurfinkel F B Horak P J Cordo K E Ames

Gurfinkel and colleagues (2006) recently found that healthy adults dynamically modulate postural muscle tone in the body axis during anti-gravity postural maintenance and that this modulation is inversely correlated with axial stiffness. Our objective in the present study was to investigate whether dynamic modulation of axial postural tone can change through training. We examined whether teache...

Journal: :Journal of neurology, neurosurgery, and psychiatry 2016
Ilya Kister Tim Spelman Raed Alroughani Jeannette Lechner-Scott Pierre Duquette Francois Grand'Maison Mark Slee Alessandra Lugaresi Michael Barnett Pierre Grammond Gerardo Iuliano Raymond Hupperts Eugenio Pucci Maria Trojano Helmut Butzkueven

BACKGROUND Discontinuation of injectable disease-modifying therapy (DMT) for multiple sclerosis (MS) after a long period of relapse freedom is frequently considered, but data on post-cessation disease course are lacking. OBJECTIVES (1) To compare time to first relapse and disability progression among 'DMT stoppers' and propensity-score matched 'DMT stayers' in the MSBase Registry; (2) To iden...

Journal: :IEEE Trans. Signal Processing 2001
Yuan-Pei Lin See-May Phoong

The design of optimal DMT transceivers for distorted channel with colored noise has been of great interest. Of particular interest is the class of block based DMT, where the transmitter and the receiver consist of constant matrices. Two types of blockbased DMT transceivers will be considered: the DMT system with zero padding (ZP-DMT) and the DMT system with general prefix (GP-DMT). We will deri...

2010
Shu Wang

In this report, we study the diversity-multiplexing tradeoff(DMT) in MIMO channels. DMT in MIMO channels is first introduced by Zheng and Tse. Based on their ideas, other researchers extended to different aspects. We will study DMT in two different aspects. In the first aspect, we will introduce DMT in different MIMO fading channels. In the second aspect, we will study different codes which wil...

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