Fast-decodable rate-2 MIDO codes from nonassociative algebras

By defining a multiplication on a direct sum of n copies of a given cyclic division algebra, we obtain new unital nonassociative algebras. We employ their left multiplication to construct fully diverse rate-2 space-time block codes for a multiple input-double output system which are ML-decodable. We give examples of rate-2 fully diverse 4 × 2, 6 × 2, 8 × 2 and 12 × 2 space-time block codes which are fast ML-decodable. Our approach is a generalization of the one used by Markin and Oggier.

S. Pumpluen < susanne.pumpluen@nottingham.ac.uk >

A. Steele < --- >