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Title of Journal: Wireless Pers Commun

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Abbravation: Wireless Personal Communications

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Springer US

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DOI

10.1016/0002-9378(89)90354-2

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1572-834X

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A New Semiblind Scheme Based on Second and Fourth

Authors: Manav R Bhatnagar R Vishwanath
Publish Date: 2008/03/27
Volume: 47, Issue: 2, Pages: 193-205
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Abstract

In this paper we propose a novel semiblind scheme based on second and fourth order statistics of Space–Time data in time varying MIMO channels This scheme combines a new blind estimator of frequency offsets and an iterative decoder Space–Time Codes have a periodic property which is used to find a simple and efficient blind estimator of carrier offsets The iterative decoder is a data aided decoder which provides the best estimates of channel noise covariance and S–T data in its category As a result of this the new semiblind scheme performs very efficiently in timeselective channels and is able to reduce the training overhead required by the dataaided estimators to a large extent and increase the effective throughput

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