OFDM while avoiding the above mentioned drawbacks associated with multicarrier (MC)
implementation. On the other hand, FDE does not represent an optimal solution to signal …

Block transmission techniques, with appropriate cyclic prefix and frequency-domain
processing schemes, have been shown to be excellent candidates for digital transmission …

Amplification of generalized multicarrier (GMC) signals by high-power amplifiers (HPAs)
before transmission can result in undesirable out-of-band spectral components …

We investigate the feasibility of applying the peak-to-average power ratio (PAPR) reduction
method using pilot sequences, originally proposed for orthogonal frequency division …

O objetivo deste artigo é apresentar uma comparação de desempenho de um conjunto de
técnicas de redução da PAPR (Peak to Average Power Ratio), visando uma análise de …

This paper compares peak to average power ratio (PAPR) of multi carrier code division
multiple access (MC-CDMA) and serial modulation-CDMA (SM-CDMA) with each other and …

This paper analyses the impact of RF impairments in a new wireless environment where
relays are introduced to improve performances. Thanks to a simulation chain supporting …

This paper discusses the effect of nonlinearities introduced by Radio Frequency (RF)
amplifier in practical digital receivers. Taking downlink as an example, after considering …

The nonlinear distortion from power amplifier (PA) distorts the signal and causes significant
impact on the symbol-error-rate (SER) performance for the electric-power-systems (EPS) …

O objetivo deste artigo é propor uma nova técnica de redução da PAPR para sinais OFDM.
Esta nova técnica é baseada em permutações feitas na matriz de Walsh-Hadamard e foi …