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An Adaptive Frame-Based Interpolation Method of Channel Estimation for Space-Time Block Codes in Moderate Fading Channels
Gabriel Porto VILLARDI Giuseppe Thadeu Freitas de ABREU Ryuji KOHNO
Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Vol.E89-A
No.3
pp.660-669 Publication Date: 2006/03/01 Online ISSN: 1745-1337
DOI: 10.1093/ietfec/e89-a.3.660 Print ISSN: 0916-8508 Type of Manuscript: Special Section PAPER (Special Section on Multidimensional Signal Processing and Its Application) Category: Communications Keyword: O-STBC, channel estimation, interpolation, non-quasi-static fading, level-crossing ratio,
Full Text: PDF(998.7KB)>>
Summary:
The application of Orthogonal Space-Time Block Codes (O-STBC) as the encoding scheme in the presence of "non-quasi-static" fading was considered. A simple and efficient adaptive method of channel estimation based on the interpolation of estimates acquired at the pre-amble and post-amble of framed blocks of information is developed. Moreover, the proposed method is proven, both theoretically and by simulations, to outperform the alternative of channel tracking, despite its significant low complexity.
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