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AssigneeMitsubishi Electric Research Laboratories, Inc.
InventorsToshiaki Koike-Akino, Tiangao Gou, Man-On Pun
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This invention provides a method for exploiting precoder optimization gains and multi-user diversity gains with interference alignment in general MIMO wireless networks including multiple users. Specifically, two embodiments exploit either a gradient-based search or iteratively orthogonalizing inference. The method can achieve near-optimal performance at a low complexity. Furthermore, a scheduling criterion is provided for wireless networks comprised of a large number of mobile stations in each cell. The criterion can be done independently in each cell to significantly reduce information exchanged between base stations in different cells compared to the methods that perform joint scheduling over all cells. The two embodiments can be utilized in a spectrally efficient communications network equipped with relaying nodes.
A method for reducing interference in a wireless network, wherein the network includes a set of cells, and wherein each cell includes a base station and a set of mobile stations associated with the base station, comprising:
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