Title :
BER Estimation for Performance Monitoring in High-Speed Digital Optical Signals
Author :
Ciaramella, Ernesto ; Peracchi, Andrea ; Banchi, Luca ; Corsini, Raffaele ; Prati, Giancarlo
Author_Institution :
Scuola Superiore Sant´´Anna, Pisa, Italy
fDate :
7/1/2012 12:00:00 AM
Abstract :
This paper presents a novel technique that allows easy and accurate estimation of the system bit error rate (BER) by collecting the statistical distribution of the receiver analog samples, i.e., before decision. It could be used to implement effective optical performance monitoring in real systems, with limited hardware complexity. The scheme performance is confirmed by both numerical simulations and experimental measurements. In all cases, the estimated BER is found to be very close to the real value, thus providing accurate and robust estimations. It is experimentally verified that in presence of strong intersymbol interference (ISI), or in the highly nonlinear regime, our technique works much better than the well known Q-factor approach.
Keywords :
error statistics; numerical analysis; optical communication; statistical distributions; BER estimation; Q-factor approach; hardware complexity; high-speed digital optical signals; highly nonlinear regime; intersymbol interference; numerical simulations; optical performance monitoring; receiver analog samples; statistical distribution; system bit error rate; Adaptive optics; Approximation methods; Bit error rate; Estimation; Monitoring; Optical noise; Optical receivers; Bit error rate (BER); fault management; forward error correction (FEC); optical communication systems; optical transparent networks; performance monitoring (PM); quality of service (QoS);
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2193380