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CM-based channel estimators for space-time block-coded M-PSK and M-QAM systems
Changjiang Xu; Le-Ngoc, T.;
Communications Letters, IEEE
Volume 7,
Issue 7,
July 2003
Page(s):311
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313
Abstract:
A constant modulus (CM)-based channel estimation scheme for space-time block-coded M-PSK and M-QAM transmission systems is derived. Exploiting the orthogonal structure of the space-time block coded transmission model, the analytical solutions to minimize the CM cost function are given for 2/sup k/ PSK (k>2) and 2/sup 2k/-QAM schemes, and used to derive the expressions for the CM-based channel estimators. Illustrative results on the performance are presented.
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