Advancements in Non-Orthogonal Multiple Access (NOMA): Towards Spectrally Efficient and Low-Latency Wireless Communication in 6G Networks

Non-Orthogonal Multiple Access (NOMA) and its function in improving spectrum efficiency and lowering latency in next-generation wireless networks are thoroughly examined in this research. We examine NOMA's benefits in terms of sum capacity, energy efficiency, and system scalability by contrasting it with traditional Orthogonal Frequency Division Multiple Access (OFDMA). There is also discussion of the difficulties in implementing NOMA, such as power distribution, security flaws, and computing complexity. The study offers insights into the viability of NOMA for 6G networks by evaluating its performance using various power allocation strategies and sequential interference cancellation (SIC) techniques.