摘要: Space-time coding is an efficient technique to exploit transmitting and receiving diversities for wireless channels. One of the key components in design receivers space-time codes channel estimation. For block based on orthogonal proposed by Alamouti Tarokh (see IEEE Trans. Information Theory, vol45, no.5, p.1456-67, 1999), a new class pilot assisted estimation schemes are presented where symbols superimposed data symbols. Placement strategies examined their efficiency transmission.
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