A 2×2 lattice space-time code of rank 5
Chaoping Xing, Wei Li · Proceedings of the American Mathematical Society · 2008
For all previous constructions of 2 × 2 2\times 2 lattice space-time codes with a positive diversity product, the rank was at most 4 4 . In this paper, we give an example of a 2 × 2 2\times 2 lattice space-time code of rank 5 5 with a positive diversity product.