Comparative analysis of CP-OFDM and F-OFDM schemes for cognitive networks

The 5G wireless communication requires transmission of information with high data rate, channel capacity, QoS in addition to less PAPR. The modulation scheme is performed in the physical layer of the network. Multi Carrier Modulation (MCM) schemes are widely preferred over single carrier modulation. Orthogonal Frequency Division Multiplexing (OFDM) is a very competent modulation method used in 4G wireless communication systems. This paper concentrates on the principle, analysis and comparison of Cyclic Prefix OFDM (CP-OFDM) with the Filtered OFDM (F-OFDM) at a frequency of 15 MHz, SNR of 18dB for various modulations like QPSK, 16QAM, 64QAM and 256QAM. F-OFDM is a flexible form of OFDM technique with lesser value of the peak to average power ratio (PAPR) allowing it to be used in the 5G wireless applications.