Comparison of the transmission modes of 5G networks with a high density of base stations distributed according to Poisson Point Process
Résumé
Mobile video traffic is growing rapidly with the advent of connected mobile devices such as smartphones and tablets, especially in the context of 5G networks. To cope with this traffic growth, cellular networks have undergone significant improvements in the recent years, especially via broadcast transmission when it comes to delivering mobile multimedia services to a large number of users. In this paper, we address the issue of performance evaluation of unicast and broadcast modes, when considering a network modeled with base stations distributed according to the PPP (Poisson Point Process) law instead of the traditional hexagonal model. The impact of varying the density of base stations is thus evaluated. The impact of using beamforming with the unicast mode is also evaluated using a certain number of antennas per sector of tri-sector base stations. The performance evaluation of unicast (even using beamforming) and broadcast modes is thus performed in terms of CDF (Cumulative Distribution Function) of the SINR (Signal to Interference and Noise Ratio), average SINR of the system, and the worst case SINR, taking into account the inter-cell interference.