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Paper detail

A Cramer-Rao Bound for Semi-Blind Channel Estimation in Redundant Block Transmission Systems

A Cramer-Rao bound (CRB) for semi-blind channel estimators in redundant block transmission systems is derived. The derived CRB is valid for any system adopting a full-rank linear redundant precoder, including the popular cyclic-prefixed orthogonal frequency-division multiplexing system. Simple forms of CRBs for multiple complex parameters, either unconstrained or constrained by a holomorphic function, are also derived, which facilitate the CRB derivation of the problem of interest. The derived CRB is a lower bound on the variance of any unbiased semi-blind channel estimator, and can serve as a tractable performance metric for system design.

preprint2012arXivOpen access
Yen-Huan LiBorching SuPing-Cheng Yeh
math.ITInformation Theory
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Yen-Huan LiBorching SuPing-Cheng Yeh

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