Non-Orthogonal Multiple Access (NOMA) for 5G Radio Technology

NOMA is a suitable multiple access technique for 5G network. It permits multiple users to share the same resource block simultaneously that yields in much higher capacity. This paper presents investigations of non-orthogonal multiple access (NOMA) theme for long-term radio access of 5th generation communication. An optimization for network's capacity constraints for fairness after providing principles for NOMA of each downlink communication channel and uplink communication channel is discussed. The effects of imperfect receivers based upon the NOMA performance are also looked after. Consequently, successive interference cancellation (SIC) for second user of NOMA network is presented. Finally, it has been found out that the network using NOMA performs better than other multiple access techniques.