Linear diversity precoding design criterion for block-fading delay limited MIMO channel

A novel approach, utilizing the virtual multiple-access like capacity region with symmetry condition on rates, is used to develop the design criterion of linear precoding (inner code) for the block-fading delay limited MIMO channel. The overall coding process is split into two parts - outer and inner code. The outer coders are supposed to work blockwise independently and the only joint processing is assumed inherently in the inner code. The motivation is to develop two-level coding process having the same outage capacity performance but significantly lower complexity of the design compared with the information-theoretically optimal joint coding book.