Инд. авторы:	Terekhov I.S., Reznichenko A.V., Turitsyn S.K.
Заглавие:	Calculation of mutual information for nonlinear communication channel at large signal-to-noise ratio
Библ. ссылка:	Terekhov I.S., Reznichenko A.V., Turitsyn S.K. Calculation of mutual information for nonlinear communication channel at large signal-to-noise ratio // Physical Review E - Statistical, Nonlinear, and Soft Matter Physics. - 2016. - Vol.94. - Iss. 4. - Art.042203. - ISSN 2470-0045. - EISSN 2470-0053 .
Внешние системы:	DOI: 10.1103/PhysRevE.94.042203; SCOPUS: 2-s2.0-84991716185;
Реферат:	eng: Using the path-integral technique we examine the mutual information for the communication channel modeled by the nonlinear Schrödinger equation with additive Gaussian noise. The nonlinear Schrödinger equation is one of the fundamental models in nonlinear physics, and it has a broad range of applications, including fiber optical communications - the backbone of the internet. At large signal-to-noise ratio we present the mutual information through the path-integral, which is convenient for the perturbative expansion in nonlinearity. In the limit of small noise and small nonlinearity we derive analytically the first nonzero nonlinear correction to the mutual information for the channel. © 2016 American Physical Society.
Ключевые слова:	Small nonlinearities; Perturbative expansion; Nonlinear physics; Nonlinear correction; Mutual informations; Fundamental models; Fiber optical communications; Additive Gaussian noise; Signal to noise ratio; Optical fiber communication; Optical communication; Nonlinear optics; Nonlinear equations; Gaussian noise (electronic); Control nonlinearities; Communication channels (information theory); Quantum theory;
Издано:	2016
Физ. характеристика:	042203