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In this paper, the authors study a two-user multiple antenna system under quasi-static fading employing a novel scheme that combines cooperation and iterative multiuser detection based on minimum mean square error estimation. They investigate three different receivers: a joint detector for the two users, a separate (per-user) detector, and a distributed matrix-Alamouti detector. They show that the separate detector and the distributed matrix-Alamouti have close performance but different detection complexity depending on the antenna configuration. Frame error rate performance under Monte Carlo simulations is finally shown.
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