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Discriminatory channel estimation emerges as a promising method of not only increasing the secrecy rates in conventional wiretap channels, but also providing a valuable tool for solving the authentication problem. In this paper, we revisit the discriminatory channel estimation method by Chang et al. and propose a generalization to the challenging scenario in which the number of antennas at the legitimate...
In this paper the problem of blind channel estimation in multiuser space-time block coded (STBC) systems is considered. Specifically, a new blind channel estimation technique is proposed. The method is solely based on second-order statistics (SOS) and it generalizes previously proposed techniques, which are specific to orthogonal codes, to a wide class of STBCs and multiuser settings. Additionally,...
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