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Proceedings Paper

Real-time estimation of BER & SNR in optical communication channels
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Paper Abstract

In optical communications the transportable bandwidth has exceeded Tbps per fiber, as a result of a dense grid of optical channels in the fiber, known as dense wavelength division multiplexing and which does not come without a price. Degradations and interactions due to non-linear and linear effects degrade the signal thus decreasing signal integrity and channel performance. Channel performance is greatly improved with error detecting and correcting codes that detect up to sixteen errors and correct up to eight within a block of information. However, estimation is limited to BER after monitoring many blocks, which takes valuable time particularly when the traffic per channel is huge. As a consequence, there is a need for fast estimation of the signal integrity and channel performance to ensure that the expected performance metrics are maintained. In this paper, we describe a statistical sampling methodology for the estimation of performance parameters such as BER, SNR, and Q-factor in a very short interval and for all-practical purposes in real-time.

Paper Details

Date Published: 23 May 2005
PDF: 9 pages
Proc. SPIE 5847, Noise in Communication Systems, (23 May 2005); doi: 10.1117/12.607301
Show Author Affiliations
Stamatios V. Kartalopoulos, The Univ. of Oklahoma (United States)

Published in SPIE Proceedings Vol. 5847:
Noise in Communication Systems
Costas N. Georghiades; Langford B. White, Editor(s)

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