A Review on Non-Orthogonal Multiple Access Technique for Emerging 5G Networks and Beyond

5G technology is a fifth-generation wireless technology which is expected to deliver advanced multimedia services along with handling large scale heterogeneous traffic data. Non-Orthogonal Multiple Access is the key principle of radio approach technique in 5G networks. NOMA has a capacity of assisting various users having the equivalent time and frequency. Currently, mobile network shares out telephony supplies that established the concept of OMA. When more users rise, the Orthogonal Multiple Access technology could not connect up-and-coming demands such as high spectral efficiency, massive connectivity and low latency. So, the NOMA concept arises the solution to fulfill the demands and permitting multiple access interference at the receiver. In this paper elaborate studies on the current evolution of NOMA in 5G network and differentiate the performance of OMA and NOMA networks.