Propagation Modeling and Performance Analysis on Millimetre Waves for 5G and Beyond Mobile Networks Using OFDM

Recent studies have explored millimeter wave (mm-Wave) communication as a crucial enabling technology for advanced connectivity in 5G and future mobile networks. However, mm-wave transmissions face challenges, including a low signal-to-noise ratio and a high likelihood of outages due to significant propagation losses and sensitivity to obstructions. This thesis delves into the characteristics of millimeter wave propagation and presents modeling results for 5G cellular networks operating at frequencies of 6 GHZ, 38 GHz, and 73 GHz in densely populated urban areas. Simulations were conducted using the NYUSIM simulator to assess the performance of mm-wave channel characteristics, with results compared to previously collected field data from another research. Our analysis focuses on significant mm-wave properties, including path loss, delay spread, and power delay profile, for both line-of-sight (LOS) and non-line-of-sight (NLOS) conditions. We also investigate how the features and performance of different millimeter wave frequencies change as the distance between the transmitter and receiver increases. This comparison includes omnidirectional and directional propagation in a smaller microcell versus a cell five times larger. Our findings suggest that all 5G deployments could feasibly support mm-wave communication .