  Quantum repeaters are critical to the development of quantum networks,
enabling rates of entanglement distribution beyond those attainable by direct
transmission. We consider multiple continuous-variable, squeezed light-based
entanglement flows through a repeater involving noiseless linear amplification
and dual homodyne detection. By analyzing a single-repeater-enhanced channel
model with asymmetric losses across the repeater, we determine optimal
placements of the central repeater hub in a 4-user hub-and-spoke network such
that the rate of each entanglement flow through the hub is enhanced.
