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We propose opportunistic transmission methods exploiting spatial holes in multi antenna systems with a cognitive multiple access or broadcast channel. The proposed methods determine a precoding matrix for each cognitive transmitter as well as a post processing matrix for each cognitive receiver. For both, the pre as well as the post processing step different strategies are given. With the help of...
This paper formulates a subjective trust game in order to investigate the trust formation processes between a truster and a trustee, who have different cognitive schemes. Furthermore, as the institutional designs to build a trust relationship between them, alternative forms of third party reviews, i.e., (1) a single reviewer, (2) multiple reviewers, (3) multiple reviewers with interpreters, are presented...
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