Share Email Print

Proceedings Paper

Per-port statistical estimation of bit error rate and optical signal-to-noise ratio in DWDM telecommunications
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In telecommunications, the incoming information signal is susceptible to attenuation, noise and jitter. Bit error rate, Q-factor, and signal to noise ratio are three key parameters that determine channel performance. Typical error detecting and correcting codes detect up to sixteen errors and correct up to eight within a block of information. Although this method monitors each channel without service interruption, the detection code has a limited error detection capability and requires several frames (or packets) to estimate bit error rate and thus it takes a relatively long time. Another method is based on “eye diagrams”; however, this requires costly equipment and off-line measurements in addition to service interruption. In this paper, we describe the mathematical background of statistical estimation of eye-diagrams and we present a circuit that automatically estimates BER, SNR, and Q-factor at each port without service interruption. This method is based on statistical sampling and therefore estimates are made in short intervals. In addition, we describe the functional block of a VLSI circuit that estimates the aforementioned performance parameters.

Paper Details

Date Published: 25 May 2004
PDF: 11 pages
Proc. SPIE 5473, Noise in Communication, (25 May 2004); doi: 10.1117/12.565047
Show Author Affiliations
Stamatios V. Kartalopoulos, Univ. of Oklahoma (United States)

Published in SPIE Proceedings Vol. 5473:
Noise in Communication
Langford B. White, Editor(s)

© SPIE. Terms of Use
Back to Top