PERFORMANCE AND ANALYSIS OF OFDM SYSTEMS USING 4-PSK AND 8-PSK MODULATION TECHNIQUES. int. J. Eng. Res. Sci. Tech. [Internet]. 2026 Jul. 22 [cited 2026 Sep. 21];22(3(1):565-9. Available from: https://ijerst.org/index.php/ijerst/article/view/4081