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Time-varying phase ...
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Mehrpouyan, Hani,1981Chalmers tekniska högskola,Chalmers University of Technology
(author)
Time-varying phase noise and channel estimation in MIMO systems
- Article/chapterEnglish2012
Publisher, publication year, extent ...
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2012
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electronicrdacarrier
Numbers
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LIBRIS-ID:oai:research.chalmers.se:edad75cc-a99f-4320-9f5e-cd0b7b56c5df
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ISBN:9781467309707
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https://doi.org/10.1109/SPAWC.2012.6292972DOI
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https://research.chalmers.se/publication/166223URI
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Language:English
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Summary in:English
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Subject category:kon swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Performance of high speed communication systems is negatively affected by oscillator phase noise (PN). In this paper joint estimation of channel gains and Wiener PN in multi-input multi-output (MIMO) systems is analyzed. The signal model for the estimation problem is outlined in detail. In order to reduce overhead, a low complexity data-aided least-squares (LS) estimator for jointly obtaining the channel gains and PN parameters is derived. In order to track PN processes over a frame, a new decision-directed extended Kalman filter (EKF) is proposed. Numerical results show that the proposed LS and EKF based PN estimator performances are close to the CRLB and simulation results indicate that by employing the proposed estimators the bit-error rate (BER) performance of a MIMO system can be significantly improved in the presence of PN.
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Added entries (persons, corporate bodies, meetings, titles ...)
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Nasir, Ali ArshadAustralian National University
(author)
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Eriksson, Thomas,1964Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)thomase
(author)
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Blostein, Steven D.Queen's University
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Karagiannidis, G. K.Aristotelio Panepistimio Thessalonikis,Aristotle University of Thessaloniki
(author)
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Svensson, Tommy,1970Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)tommys
(author)
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Chalmers tekniska högskolaAustralian National University
(creator_code:org_t)
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In:IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC, s. 560-5649781467309707
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