Bounds of fast decodability of space time block codes, skew-Hermitian matrices, and Azumaya algebras

Grégory Berhuy, Nadya Markin, B. A. Sethuraman

We study fast lattice decodability of space-time block codes for $n$ transmit and receive antennas, written very generally as a linear combination ${\sum }_{i=1}^{2l}{s}_i{A}_i$, where…