A Gaussian noise (GN) model, precisely accounting for an arbitrary frequency dependent
signal power profile along the link, is presented. This allows accurate evaluation of the …

Os futuros transceptores ópticos coerentes serão capazes de ajustar parâmetros do sinal
transmitido (formato de modulação, taxa de símbolo, taxa de codificação e número de …

Reduzir os gastos energéticos em redes de comunicação tem sido um dos grandes
desafios enfrentados nos últimos anos. Este trabalho de tese apresenta novas estratégias …

In this paper, we examine information theoretical properties of single-mode fibers in the
presence of polarization-induced distortion effects. We derive some capacity results and …

Fiber nonlinear (NLI) noise, as well as amplified spontaneous emission (ASE) noise,
degrades the performance of coherent optical fiber communications. We find that the …

Modern fiber-optic communication systems combine state-of-the-art components with
powerful digital signal processing (DSP) to maximize the system spectral efficiency (SE) …

We evaluate the impact of optical amplifier failure on the achievable information rate (AIR) of
a transmission link. We consider two scenarios to avoid link failure. First, we consider that …

We consider a nonlinear fiber optic channel with memory and signal dependent noise. We
provide an achievable rate via an iid complex Gaussian input. This improves on an existing …