Results 1 to 10 of about 10,809 (212)
The performance of polarization switched-QPSK (PS-QPSK) in dispersion managed WDM transmissions [PDF]
36th European Conference and Exhibition on Optical Communication, 2010 We investigate for the first time the performance of PS-QPSK in WDM nonlinear propagation. We show that the theoretical performance improvement of PS-QPSK compared to PDM-QPSK is even larger in nonlinear propagation.
Armando Vannucci +2 more
exaly +4 more sources
A Novel 32-Point Modulation Scheme of 6PolSK-QPSK Signal
IEEE Access, 2023 The six-polarization shift keying quadrature (6PolSK-QPSK) has been proved to be an alternative to four-dimensional (4D) modulation scheme. A variety of transmission compensation schemes have been developed for 24-Point 6PolSK-QPSK combining the ...
Yupeng Li +7 more
doaj +2 more sources
Active and Passive Electronic Components, 2002 In this paper a MMIC QPSK modulator is described. The bit rate of the baseband signal is 155 Mbits/sec, while the frequency of the carrier is fLO=10 GHz . The modulation is performed directly at the RF band and therefore an IF stage is not necessary. The
Petros S. Tsenes +3 more
doaj +2 more sources
Experimental Results of Magnetic Communication Using the Giant Magnetoimpedance Receiver in Underwater Environments [PDF]
Journal of Electromagnetic Engineering and Science, 2023 This letter presents the topology of a novel approach to magnetic communication using a giant magnetoimpedance (GMI)-based receiver with a GMI sensor in underwater media such as freshwater.
Jang-Yeol Kim +4 more
doaj +1 more source
Journal of Studies in Science and Engineering, 2022 Everyone has paid much attention to modulation-type recognition in the past few years. There are many ways to find the modulation type, but only a few good ways to deal with signals with a lot of noise.
Rasool F. Jader +2 more
doaj +1 more source
Comparison of FFT-Based and DCT-Based Channel Estimation and ECC for OFDM System [PDF]
Engineering and Technology Journal, 2015 Orthogonal Frequency Division Multiplexing (OFDM) has become a popular modulation method for high data rate wireless communications. In this paper, two schemes are proposed.
Awatif Ali Jafaar
doaj +1 more source
A Superregenerative QPSK Receiver [PDF]
IEEE Transactions on Circuits and Systems I: Regular Papers, 2014 Peer ...
Palà Schönwälder, Pere +4 more
openaire +3 more sources
Single-carrier transmission scheme for extracting characteristic parameters of 32-Point 6PolSK-QPSK
EURASIP Journal on Advances in Signal Processing, 2022 Six polarization-shift keying quadrature phase shift keying (6PolSK-QPSK) signal modulation format is formed by different representations of QPSK. A variety of satisfactory single-carrier transmission schemes have been implemented in 24-Point 6PolSK-QPSK.
Yupeng Li +7 more
doaj +1 more source
Analisis Perbandingan Komunikasi Satelit Frekuensi C-Band Dan Ka-Band Di Indonesia
Protek: Jurnal Ilmiah Teknik Elektro, 2020 This paper analyzes the comparison of data communications using GEO satellites between C-band and Ka-band frequencies in Indonesia which has a tropical rain climate. The data communication uses QPSK modulation on the path of four earth stations by paying
Tanridio Silviati Delfina Abdurrahman +2 more
doaj +1 more source
Analisis Kinerja Sistem Modulasi Downlink LTE dan 5G pada Kanal AWGN Berbasis MATLAB
Techne, 2023 Pada penelitian ini dilakukan analisis performansi downlink LTE dan 5G dengan menggunakan MATLAB. Penelitian ini bertujuan untuk menganalisis perbandingan kinerja teknik modulasi QPSK, 16-QAM, dan 64-QAM yang digunakan pada downlink LTE dan teknik ...
Amalia Eka Rakhmania +5 more
doaj +1 more source