Lattice coding for Rician fading channels from Hadamard rotations
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A4 Artikkeli konferenssijulkaisussa
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en
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5
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2017 IEEE International Symposium on Information Theory, ISIT 2017, pp. 3110-3114
Abstract
In this paper, we study lattice coding for Rician fading wireless channels. This is motivated in particular by preliminary studies suggesting the Rician fading model for millimeter-wavelength wireless communications. We restrict to lattice codes arising from rotations of Zn, and to a single-input single-output (SISO) channel. We observe that several lattice design criteria suggest the optimality of Hadamard rotations. For instance, we prove that Hadamard rotations maximize the diamond-packing density among all rotated Zn lattices. Finally, we provide simulations to show that Hadamard rotations outperform optimal algebraic rotations and cross-packing lattices in the Rician channel.Description
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Karrila, A, Väisänen, N, Karpuk, D & Hollanti, C 2017, Lattice coding for Rician fading channels from Hadamard rotations. in 2017 IEEE International Symposium on Information Theory, ISIT 2017., 8007102, IEEE, pp. 3110-3114, IEEE International Symposium on Information Theory, Aachen, Germany, 25/06/2017. https://doi.org/10.1109/ISIT.2017.8007102