Analysis of power allocation Strategy in noma based uplink and Downlink communication system

Abstract

newline Wireless communication networks are essential in everyday life. newlineThe increasing growth of mobile devices has overwhelmed the newlinecommunication infrastructure, thus encouraging the researchers worldwide to newlinestudy the evolving social needs. Orthogonal multiple access (OMA) methods newlinesuch as time division multiple access (TDMA), frequency division multiple newlineaccess (FDMA), code division multiple access (CDMA), and orthogonal newlinefrequency division multiple access (OFDMA) are widely used in wireless newlinesystems today. The capacity and user data rate of these approaches are low. In newlineoptimal channel conditions, FDMA users efficiently share a frequency band, newlinebut poor conditions limit bandwidth utilization. A limit on resources prevents newlineserving more users, thus reducing the overall system s spectral efficiency