  We investigate the performance of mixed free space optical
(FSO)/millimeter-wave (mmWave) relay networks with interference at the
destination. The FSO/mmWave channels are assumed to follow
Malaga-M/Generalized-K fading models with pointing errors in the FSO link. The
H-transform theory, wherein integral transforms involve Fox's H-functions as
kernels, is embodied to unifying the performance analysis framework that
encompasses closed-form expressions for the outage probability, the average bit
error rate (BER) and the average capacity. By virtue of some H-transform
asymptotic expansions, the high signal-to-interference-plus-noise ratio (SINR)
analysis reduces to easy-to-compute expressions for the outage probability and
BER, which reveals inside information for the system design. We finally
investigate the optimal power allocation strategy, which minimizes the outage
probability.
