Efficient transmission in the millimeter waves 28 GHz Outdoor Channel Using Spatial Multiple Access (SMA)

Non-Orthogonal Multiple Access (NOMA) is considered as one of the key technologies for the fifth generation (5G) of the cellular networks. However, due to the complexity of the Successive Interference, spatial multiple access (SMA) technique - based on using spatial modulation for multiple antenna systems - was proposed to avoid the use of successive interference cancellation. On the other hand, millimeter waves band is a promising band for 5G. this is mainly because the traditional microwave band is currently fully crowded. In this paper we investigate efficient transmission in the millimeter waves 28 GHz Outdoor Channel Using Spatial Multiple Access (SMA). Two ray fluctuating model (TRF) is used in the performance analysis for millimeter waves, as well as the limiting case of the Rayleigh channel. Analytical and simulation results show the performance of SMA over millimeter waves. Finally; the performance is shown to be improved over the more complicated NOMA with SIC.