LR-aided MMSE lattice decoding is DMT optimal for all approximately universal codes

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dc.creatorJalden, Joakim
dc.creatorElia, Petros
dc.date2009-01-27
dc.date.accessioned2026-07-07T12:34:53Z
dc.date.available2026-07-07T12:34:53Z
dc.descriptionCurrently for the nt x nr MIMO channel, any explicitly constructed space-time (ST) designs that achieve optimality with respect to the diversity multiplexing tradeoff (DMT) are known to do so only when decoded using maximum likelihood (ML) decoding, which may incur prohibitive decoding complexity. In this paper we prove that MMSE regularized lattice decoding, as well as the computationally efficient lattice reduction (LR) aided MMSE decoder, allows for efficient and DMT optimal decoding of any approximately universal lattice-based code. The result identifies for the first time an explicitly constructed encoder and a computationally efficient decoder that achieve DMT optimality for all multiplexing gains and all channel dimensions. The results hold irrespective of the fading statistics.
dc.description5 pages, submitted to ISIT 09
dc.identifierhttps://arxiv.org/abs/0901.4267
dc.identifierhttp://arxiv.org/abs/0901.4267
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/217600
dc.subjectInformation Theory
dc.titleLR-aided MMSE lattice decoding is DMT optimal for all approximately universal codes
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