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 co-variance and S–T data in its category. As a result of this the new semiblind scheme performs very efficiently in time-selective channels and is able to reduce the training overhead required by the data-aided estimators to a large extent, and increase the effective throughput.
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Bhatnagar, M.R., Vishwanath, R. A New Semiblind Scheme Based on Second and Fourth Order Statistics for Decoding of Space–Time Data in Time Selective MIMO Channels. Wireless Pers Commun 47, 193–205 (2008). https://doi.org/10.1007/s11277-008-9454-9
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DOI: https://doi.org/10.1007/s11277-008-9454-9