Henkel, O.O.Henkel2022-03-032022-03-032005https://publica.fraunhofer.de/handle/publica/20918710.1109/TIT.2005.855594Applying the Riemann geometric machinery of volume estimates in terms of curvature, bounds for the minimal distance of packings/codes in the Grassmann and Stiefel manifolds will be derived and analyzed. In the context of space-time block codes this leads to a monotonically increasing minimal distance lower bound as a function of the block length. This advocates large block lengths for the code design.en621journal article