Zobrazeno 1 - 10
of 95
pro vyhledávání: '"DongSun Seo"'
Publikováno v:
IEEE Access, Vol 7, Pp 95170-95177 (2019)
A new technique, which can increase the wireless light fidelity channel capacity based on the white light emitting diode, is proposed. It is implemented by using the non-orthogonal frequency shift keying and the sparse carrier sampling at the same ti
Externí odkaz:
https://doaj.org/article/8f7774ea1b0247eb90db9ec52509071e
Publikováno v:
Sensors, Vol 21, Iss 4, p 1060 (2021)
For Li-Fi wireless links based on a white light emitting diode, an adaptive differential equalization (ADE) technique that reduces various noises such as interference noise and shot one generated from ambient light sources is pro-posed. The ADE techn
Externí odkaz:
https://doaj.org/article/6ca9590dc7324af986c6427b3ce956d8
Publikováno v:
Optical Engineering. 60
A derivative and subtractive equalization (DSE), which simultaneously transmits both four-level pulse amplitude modulation (PAM-4) and discrete multitone (DMT) signals encoded by quadrature amplitude phase shift keying (QPSK) with the same bandwidth,
Publikováno v:
Optical and Quantum Electronics. 53
We propose a statistical adaptive equalizer to simultaneously transmit a discrete multitone signal encoded by quadrature phase shift keying and non-return-to-zero on–off keying in an optical wireless link based on a white light emitting diode. We i
Publikováno v:
IET Image Processing. 13:1951-1959
Shrinking bias problem is a practical limitation of graph-cut-based methods for binary image segmentation. The detail parts with thin elongated object are not well preserved in graph cut minimisation as a result. The authors propose to use structure
Publikováno v:
Microwave and Optical Technology Letters. 59:1371-1375
Publikováno v:
JSTS:Journal of Semiconductor Technology and Science. 17:156-161
Publikováno v:
Journal of IKEEE. 20:385-391
Publikováno v:
JSTS:Journal of Semiconductor Technology and Science. 16:854-859
Recently, GeSn is drawing great deal of interests as one of the candidates for group-IV-driven optical interconnect for integration with the Si complementary metal-oxide-semiconductor (CMOS) owing to its pseudo-direct band structure and high electron
Publikováno v:
2019 IEEE Research and Applications of Photonics in Defense Conference (RAPID).
Based on direct phase noise compensation utilizing an external phase modulator, we reduce the laser spectral width from 450 kHz to 60 kHz and detect directly 5 G-symbol/s binary and quaternary phase shift keying signals without digital signal process