The type of modulation used in the signal to be amplified usually dictates efficiency and linearity.
The probability of symbol error for QPSK modulation used in the simulations below can then be simply calculated using (22) and (23) for.
Recent advances in CT such as iterative reconstruction [32] and adaptive kV [33] have shown a reduction in patient CT dose, additional to the dose reduction achieved with the tube current modulation used in this study.
The global parameters are mainly represented by the settings of both systems' PHY, such as modulation used in DVB-T2-Lite, inverse fast Fourier transform (IFFT) size, and the Forward Error Correction (FEC) code rate of both systems.
Parameter Value Sampling frequency, Fs 1.5 MHZ Carrier frequency, Fc 150 kHZ Symbol rate, Rs 12500 Symbol/s No. symbols, Ns 100 Symbols Simulation parameters of digital modulation used in training, validation, and evaluation of the proposed algorithm.
The objective in this article is to develop a new decision tree-based AMC algorithm well-suited for the classification of most popular single carrier modulations used in HF communication systems, i.e., 2FSK, 4FSK, 8FSK, 2PSK, 4PSK, 8PSK, 16QAM, 32QAM, 64QAM, 16 amplitude-phase shift keying (APSK), and 32APSK [1].
In this article, a new features-based decision tree AMC algorithm is developed for the classification of most popular single carrier modulations used in HF communications systems, i.e., 2FSK, 4FSK, 8FSK, 2PSK, 4PSK, 8PSK, 16QAM, 32QAM, 64QAM, 16APSK, and 32APSK.
The presence of two types of gBi O r) is a result of the modulations used in the incommensurate structure.
In particular, it is identified that the conventional stuff threshold modulation and adaptive threshold modulation schemes used in digital communications are as same as the dithering and multi-loop architectures of sigma delta modulators.
The difference in having two antennas at the RNs instead of one is in the modulation used, since we need the double of the time.
Continuous phase modulation (CPM) is a popular frequency modulation technique used in mobile communications due to its power efficiency and constant modulus properties.
