• PENUGUDURU RAVI KUMAR
• K. RAJASEKHAR

In this paper, we compare two multi-carrier techniques for future generation mobile communications are orthogonal frequency Division Multiplexing (OFDM) and Filter Bank Multi-carrier (FBMC).OFDM is the best suitable for fourth generation mobile communications .Due to cyclic-prefix (CP) and wide frequency guards OFDM is inefficient. In this context, a novel multicarrier modulation FBMC used for forthcoming mobile communications. To get the perfect reconstruction and sub-band orthogonality cosine modulated filter banks are used in perfect reconstruction filter bank multicarrier (PR -FBMC), which is not be optimal for communication outlook. So we proposed imperfect reconstruction FBMC (iPR-FBMC) for non-orthogonal transmission. Observe the computational complexity between FBMC and OFDM .The results reveal the achievable rate and bit error rate (BER) performance of iPR-FBMC better compared to PR –FBMC and OFDM in different channels like additive white Gaussian noise channel (AWGN) and highly frequency selective channels for different no of sub-band carriers and length of multipath channels.

Index Terms: Multi-Carrier, OFDM, FBMC, prototype filter design, BER, complexity, iPR-FBMC.

"Channel Performance Estimation Using Filter Bank Multi-Carrier Method", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 7, page no.775-779, July-2018, Available :http://www.jetir.org/papers/JETIR1807836.pdf

"Channel Performance Estimation Using Filter Bank Multi-Carrier Method", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 7, page no. pp775-779, July-2018, Available at : http://www.jetir.org/papers/JETIR1807836.pdf