In this paper titled 'Improved CP-OFDM System for multipath propagation, we attempt to enhance the quality of 5G communication with Cyclic Prefix OFDM System. Various methods can be used to reduce the multipath effects observed in wireless communication. Multicarrier modulation for data transmission, also known as Orthogonal Frequency Division Multiplexing (OFDM) is a better technology to combatthe effect of Inter Symbol Interference (ISI). Primitive OFDM Systems were widely used in 4G communication. To achieve high transmission rate and speed requirements of 5G communication, multiple other alternative methods are being explored. Upon the performance analysis,CP-OFDM found to be a good candidate in terms of compatibility with multi-antenna technologies, high spectral efficiency and low implementation complexity.