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dc.contributor.authorOggier, Frederiqueen
dc.contributor.authorLuzzi, Lauraen
dc.identifier.citationLuzzi, L., & Oggier, F. (2011). A family of fast-decodable MIDO codes from crossed-product algebras over Q. Proceedings of the 2011 IEEE International Symposium on Information Theory (ISIT 2011), Saint-Petersburg, Russia.en
dc.description.abstractMultiple Input Double Output (MIDO) asymmetric space-time codes for 4 transmit antennas and 2 receive antennas can be employed in the downlink from base stations to portable devices. Previous MIDO code constructions with low Maximum Likelihood (ML) decoding complexity, full diversity and the non-vanishing determinant (NVD) property are mostly based on cyclic division algebras. In this paper, a new family of MIDO codes with the NVD property based on crossed-product algebras over Q is introduced. Fast decodability follows naturally from the structure of the codewords which consist of four generalized Alamouti blocks. The associated ML complexity order is the lowest known for full-rate MIDO codes (O(M^{10}) instead of O(M^{16}) with respect to the real constellation size M). Numerical simulations show that these codes have a performance from comparable up to 1dB gain compared to the best known MIDO code with the same complexity.en
dc.format.extent5 p.en
dc.rights© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. The published version is available at:
dc.subjectDRNTU::Engineering::Electrical and electronic engineering::Wireless communication systemsen
dc.titleA family of fast-decodable MIDO codes from crossed-product algebras over Qen
dc.typeConference Paperen
dc.contributor.schoolSchool of Physical and Mathematical Sciencesen
dc.contributor.conferenceIEEE International Symposium on Information Theory (2010 : Austin, Texas, US)en
dc.description.versionAccepted versionen
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