  This paper considers a K-user Multiple-Input-Single-Output (MISO)
Interference Channel (IC), where the channel state information obtained by the
transmitters (CSIT) is perfect, but completely outdated. A Retrospective
Interference Alignment (RIA) using such delayed CSIT was proposed by the
authors of [1] for the MISO Broadcast Channel (BC), but the extension to the
MISO IC is a non-trivial step as each transmitter only has the message intended
for the corresponding user. Recently, [7] focused on a
Single-Input-Single-Output (SISO) IC and solved such bottleneck by inventing a
distributed higher order symbol generation. Our main work is to extend [7] to
the MISO case by integrating some features of the scheme proposed in [1]. The
achieved sum Degrees-of-Freedom (DoF) performance is asymptotically given by
64/15 when $K\to\infty$, outperforming all the previously known results.
