Utilize este identificador para referenciar este registo:
http://hdl.handle.net/10071/8216
Autoria: | Rebola, J. Cartaxo, A. V. T. |
Data: | 2014 |
Título próprio: | Analysis of performance assessment of direct-detection OFDM optical receivers with imperfect RF demodulation |
Volume: | 6 |
Número: | 2 |
Paginação: | 180-189 |
ISSN: | 1943-0620 |
Palavras-chave: | Bit error probability Direct-detection receiver Moment generating function Optical communications Orthogonal frequency division multiplexing Radio-frequency demodulation |
Resumo: | An analytical method based on the moment generating function (MGF) is proposed for assessing the performance of direct-detection (DD) orthogonal frequency division multiplexing (OFDM) optical receivers with radiofrequency (RF) demodulation. The MGF-based method is a generalization of the method previously reported in the literature for DD baseband OFDM optical receivers. The proposed method relies on the analytical derivation of equivalent filters that describe the combined effect of electrical filtering + RF demodulation + FFT operation + the equalizer of the OFDM receiver for the real and imaginary parts of the signal at the equalizer output. The method takes into account imperfections of the RF demodulator, namely, power and phase imbalance between the RF demodulator arms and different electrical filtering on its arms. Numerical results show excellent agreement between the bit error probability estimates provided by the proposed method and estimates obtained from Monte Carlo simulation, in the absence and presence of receiver imperfections. |
Arbitragem científica: | Sim |
Acesso: | Acesso Embargado |
Aparece nas coleções: | CTI-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
---|---|---|---|---|
publisher_version_J Opt Commun.pdf Restricted Access | 609,86 kB | Adobe PDF | Ver/Abrir Request a copy |
Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.