Optical performance monitor placement in OTNs using link statistical model

Optical networks are the main traffic carrier in the core networks. Due to their robust characteristics, these networks are also becoming popular in the metro and access areas. With the increase in the data rates and larger transmitting powers, several degradations come into existence. The main problems at higher data rates and large transmitter power are the non-linearities and other associated signal impairments. In order to control these unwanted effects, the quality of signal should be assessed at the critical locations of the optical networks. This measurement can be performed using optical performance monitors. However, for proper assessment of the qualities of the signals and to know the state of the optical networks, the optical performance monitors have to be placed at the right locations. In this article, we present distance based logic for the placement of optical performance monitors. We use link statistical models of optical networks for this placement.