Inter Carrier Interference and Signal to Interference Ratio of Various Pulse Shaping Functions Used in Ofdm System with Carrier Frequency Offset
Orthogonal Frequency Division Multiplexing (OFDM) is the important modulation of choice for fourth generation broadband multimedia wireless systems. This paper is focused on the problem of reducing the Inter-Carrier Interference (ICI) and signal to noise ratio in the transmission over OFDM using various pulse shaping methods. Here, the authors have performed a detailed performance comparison of various pulse shaping functions used in OFDM System with Carrier Frequency Offset. They appear to be suitable for transmission in OFDM systems with carrier frequency offset. The results obtained by analysis show that the performance improvement over conventional pulse shapes, are significant for reducing average InterCarrier-Interference (ICI) power and Increased Ratio of average Signal power to average ICI power (SIR).