Please use this identifier to cite or link to this item:
|Title:||Optimum Performance and Spectral Characterization of CE-OFDM Signals|
Carvalho, Paulo Montezuma
|Abstract:||Orthogonal frequency division multiplexing (OFDM) modulations are very popular in wireless communications due to their flexibility and good performance over severely time-dispersive channels. However, OFDM signals have large peak-to-average power ratio (PAPR), which leads to amplification problems. Constant envelope OFDM (CE-OFDM) techniques use an OFDM signal to modulate the phase of a given carrier, allowing a 0 dB PAPR, with all inherent advantages. However, the phase modulator is a nonlinear device that can lead to performance degradation. In this paper, we take advantage of the Gaussian characteristics of OFDM signals to characterize analytically CE-OFDM signals, both in terms of power spectral density (PSD) and optimum asymptotic performance.|
|Appears in Collections:||DCT - Artigos/Papers|
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.