with outdated channel state information at the transmitters (CSIT). For a fast-fading scenario,
the degrees-of-freedom (DoF) region for this channel has been characterized by Vaze and
Varanasi in [1]. We devise a simple achievable scheme, which has a unified structure for
different antenna configurations. In the proposed scheme, matrices with random entries
chosen from a continuous probability distribution are used in the process of designing the …