Инд. авторы:	Le S.T., Haigh P.A., Ellis A.D., Turitsyn S.K.
Заглавие:	Blind Phase Noise Estimation for CO-OFDM Transmissions
Библ. ссылка:	Le S.T., Haigh P.A., Ellis A.D., Turitsyn S.K. Blind Phase Noise Estimation for CO-OFDM Transmissions // Journal of Lightwave Technology. - 2016. - Vol.34. - Iss. 2. - Art.7208793. - ISSN 0733-8724.
Внешние системы:	DOI: 10.1109/JLT.2015.2469542; SCOPUS: 2-s2.0-84961878475;
Реферат:	eng: In this paper, we discuss in detail the performance of different blind phase noise estimation schemes for coherent optical orthogonal frequency-division multiplexing transmissions. We first derive a general model of such systems with phase noise. Based on this model, the phase cycle slip probability in blind phase noise estimation is calculated. For blind phase tracking, we present and discuss the implementation of feedback loop and digital phase tracking. We then analyze in detail the performance of a decision-direct-free blind scheme, in which only three test phases are required for phase noise compensation. We show that the decision-direct-free blind scheme is transparent to QAM formats, and can provide a similar performance to the conventional blind phase search employing 16 test phases. We also propose two novel cost functions to further reduce the complexity of this scheme. © 1983-2012 IEEE.
Ключевые слова:	Phase tracking; Phase noise compensations; Phase estimation; Phase cycle-slip; General model; Feed-back loop; Coherent optical-orthogonal frequency-division multiplexing; Coherent; Orthogonal frequency division multiplexing; Multiplexing; Frequency estimation; Frequency division multiplexing; Cost functions; phase noise; phase estimation; orthogonal frequency division multiplexing; Coherent; Phase noise;
Издано:	2016
Физ. характеристика:	7208793, с.745-753