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Dispersion Compensa...
Dispersion Compensation FIR Filter with Improved Robustness to Coefficient Quantization Errors
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- Sheikh, Alireza, 1989 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Fougstedt, Christoffer, 1990 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Graell i Amat, Alexandre, 1976 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Johannisson, Pontus, 1976 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Larsson-Edefors, Per, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Karlsson, Magnus, 1967 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2016
- 2016
- English.
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In: Journal of Lightwave Technology. - 0733-8724 .- 1558-2213. ; 34:22, s. 5110-5117
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https://doi.org/10.1...
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Abstract
Subject headings
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- In this paper, we propose a new finite impulseresponse (FIR) filter for chromatic dispersion compensation which is given in closed form. We identify a relation between the out-of-band gain and the in-band error when the filter is implemented with finite-precision arithmetic. In particular, a large out-of-band gain makes the filter more sensitive tocoefficient quantization errors due to finite precision digital signal processing. To improve robustness to coefficient quantization errors, our proposed filter is designed based on confining the out-of-band gain. By means of simulations, we show that our filter outperforms other existing FIR filters. The performance gain improves with increasing modulation order and decreasing number of bits used to represent the filter taps.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Kommunikationssystem (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Communication Systems (hsv//eng)
Keyword
- constrained least-squares
- quantization errors
- FIR filter
- Chromatic dispersion compensation
Publication and Content Type
- art (subject category)
- ref (subject category)
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