  Existing classical optical network infrastructure cannot be immediately used
for quantum network applications due to photon loss. The first step towards
enabling quantum networks is the integration of quantum repeaters into optical
networks. However, the expenses and intrinsic noise inherent in quantum
hardware underscore the need for an efficient deployment strategy that
optimizes the allocation of quantum repeaters and memories. In this paper, we
present a comprehensive framework for network planning, aiming to efficiently
distributing quantum repeaters across existing infrastructure, with the
objective of maximizing quantum network utility within an entanglement
distribution network. We apply our framework to several cases including a
preliminary illustration of a dumbbell network topology and real-world cases of
the SURFnet and ESnet. We explore the effect of quantum memory multiplexing
within quantum repeaters, as well as the influence of memory coherence time on
quantum network utility. We further examine the effects of different fairness
assumptions on network planning, uncovering their impacts on real-time network
performance.
