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There have been many papers that show the physical layer advantages of beamforming. However, to the best of our knowledge, none have dealt with the large-scale network level performance evaluation. While it is clear that beamforming brings a positive effect on network performance, that improvement has not been quantified. This is important given that, despite its advantages, large-scale beamforming deployment also implies additional CAPEX and OPEX costs for service providers. This paper presents a large-scale network layer simulation study that aims at quantifying some network layer Key Performance Indicators improvement achieved by the massive introduction of beamforming in the network. We first show how we adapted a simulation-efficient packet scheduling procedure to our large-scale PIoT simulator engine. Then, we perform extensive simulations on a real network of the city of Montréal with …