Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/95638
Title: A family of fast-decodable MIDO codes from crossed-product algebras over Q
Authors: Oggier, Frederique
Luzzi, Laura
Keywords: DRNTU::Engineering::Electrical and electronic engineering::Wireless communication systems
Issue Date: 2011
Source: Luzzi, 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.
Abstract: Multiple 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.
URI: https://hdl.handle.net/10356/95638
http://hdl.handle.net/10220/7084
DOI: 10.1109/ISIT.2010.5513709
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: http://dx.doi.org/10.1109/ISIT.2010.5513709.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Conference Papers

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