An algebraic MIDO-MISO code construction

Frédérique Oggier*, Camilla Hollanti, Roope Vehkalahti

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

15 Citations (Scopus)


Multiple-input double-output (MIDO) codes are important in future wireless communications, where the portable end-user device is physically small and uses only two receive antennas. In this paper, we address the design of 4×2 MIDO codes. Starting from a 4×4 space-time block code matrix built from a cyclic division algebra, two ways of puncturing the code are presented, resulting in either a well-shaped MIDO code, or a MIDO code with some orthonormal columns, yielding fast maximum-likelihood (ML) decodability. The well-shaped MIDO code outperforms the fast decodable one through simulations, an indication that the shaping property stays an important code design criterion. We then provide a slightly modified version of the well-shaped MIDO code which both preserves the shaping and increases the orthogonality of its columns in an attempt to speed up the decoding of the code. Finally, we show that a multiple-input single output (MISO) code is actually embedded in the MIDO code, allowing the transmitter to choose between sending a MIDO or MISO code, without having to change the encoder. All the proposed codes have the non-vanishing determinant (NVD) property.

Original languageEnglish
Title of host publication2010 International Conference on Signal Processing and Communications, SPCOM 2010
Publication statusPublished - 2010
MoE publication typeA4 Article in a conference publication
EventInternational Conference on Signal Processing and Communications - Bangalore, India
Duration: 18 Jul 201021 Jul 2010


ConferenceInternational Conference on Signal Processing and Communications
Abbreviated titleSPCOM

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