  We propose in this paper a simulation implementation of self-organizing
Networks optimization related to mobility load balancing (MLB) for lte systems
using ns-3. the implementation is achieved toward two MLB algorithms
dynamically adjusting handover (HO) parameters based on the reference signal
received power measurements. such adjustments are done with respect to loads of
both an overloaded cell and its cell neighbours having enough available
resources enabling to achieve load balancing. numerical investigations through
selected key performance indicators of the proposed MLB algorithms when
compared with another HO algorithm (already implemented in ns3) based on A3
event highlight the significant MLB gains provided in terms global network
throughput, packet loss rate and the number of successful HO without incurring
significant overhead.
