22 research outputs found
Implementation and Analysis of Different Equalizers using SIC and V-Blast Architecture for MIMO systems
Get PDFWireless communication transfers the information between two points without connected electrically to each other. Wireless operations permits to user to communicate long range or at any range without wires. Wireless communication is reliable, robust and secure. This paper evaluates the performance of detectors using V-BLAST architecture for multiple-input multiple-output (MIMO) systems. To Review the performance, the implementation of the multiuser receivers like the ZF detector, the MMSE receiver and SIC Successive Interference Cancellation is required. The algorithms of these receivers combined with multiuser receivers to achieve high channel capacity. Simulation result shows that instead of using equal number of transmitter and receiver antennas, this will get better performance of BER with increased number of receiver antennas only compared to transmitters
Structural, optical and thermoluminescence study of Dy 3+ ion doped sodium strontium borate glass
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Searching a systematics for nonfactorizable contribution to B-and B0 mesons
No full textTwo-body weak decays / and are examined under isospin analysis to study nonfactorizable contributions. After extracting the strong phases and obtaining the factorizable contributions from spectator-quark diagrams for Nc=3, we determine nonfactorizable isospin amplitudes from the experimental data for these modes. Our results support the universality of ratio of nonfactorizable isospin reduced amplitudes for these decays within experimental errors. In order to show that this systematics is not coincidental, we also plot our results w. r. t. this ratio
Nonfactorizable Contribution to B-Meson Decays to s-Wave Mesons
Get PDFTwo-body weak decays of bottom mesons into two pseudoscalar and pseudoscalar and vector mesons, are examined under isospin analysis to study nonfactorizable contribution
The Role of MgO Modifier on Physical, Structural, Optical and Thermoluminescence Properties of Lithium Borate Glass System
No full text343-354Synthesis of lithium borate glass system was carried using the melt quenching technique with varying concentrations of
magnesium followed by analysing the different characteristics such as physical, structural, optical and thermoluminescene
using various techniques eg. X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-Vis
spectroscopy, and Thermoluminescence (TL). The obtained XRD pattern confirmed the amorphous nature of the prepared
samples. Relevant physical parameters have been evaluated to study the response of these properties with respect to
magnesium content. The density and molar volume values showed that the network structure changed with increasing
magnesium content. It is evident from the FTIR spectra that the network of the prepared samples predominantly contains
BO3 and BO4 units. The UV-vis spectra confirmed a decrease in the direct and indirect band gap values with increase in
MgO content. Optical parameters namely refractive index, electronic polarizability, reflection loss and dielectric constant
were also calculated and found to be in good correlation with other studies. Following gamma rays irradiation with different
doses, TL glow curves of prepared glasses were analysed. Deconvolution of TL glow curves was done using glow curve
convolution deconvolution (GCCD) function and trapping parameters of isolated peaks viz. activation energy and frequency
factor have been determined
