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Constellation Optim...
Constellation Optimization in the Presence of Strong Phase Noise
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- Krishnan, Rajet, 1982 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Graell i Amat, Alexandre, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Eriksson, Thomas, 1964 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Colavolpe, Giulio (författare)
- Universita degli Studi di Parma,University of Parma
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(creator_code:org_t)
- 2013
- 2013
- Engelska.
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Ingår i: IEEE Transactions on Communications. - 0090-6778 .- 1558-0857. ; 61:12, s. 5056-5066
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http://publications.... (primary) (free)
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- In this paper, we address the problem of optimizing signal constellations for strong phase noise. The problem is investigated by considering three optimization formulations, which provide an analytical framework for constellation design. In the first formulation, we seek to design constellations that minimize the symbol error probability (SEP) for an approximate ML detector in the presence of phase noise. In the second formulation, we optimize constellations in terms of mutual information (MI) for the effective discrete channel consisting of phase noise, additive white Gaussian noise, and the approximate ML detector. To this end, we derive the MI of this discrete channel. Finally, we optimize constellations in terms of the MI for the phase noise channel. We give two analytical characterizations of the MI of this channel, which are shown to be accurate for a wide range of signal-to-noise ratios and phase noise variances. For each formulation, we present a detailed analysis of the optimal constellations and their performance in the presence of strong phase noise. We show that the optimal constellations significantly outperform conventional constellations and those proposed in the literature in terms of SEP, error floors, and MI.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Nyckelord
- maximum likelihood (ML) detection
- Constellations
- phase noise
- mutual information
- symbol error probability
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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