ICI Cancellation using Self Cancellation Method

Abstract: In these recent years, with the increase in the growth of digital communication, there has been a huge need for high speed data transmission. Likewise, there is a huge demand for the communication systems that support a wide range of services which include video, data and voice. OFDM (Orthogonal Frequency Division Multiplexing) is an efficient method of communication to achieve high speed data rates in mobile environment since it supports multicarrier modulation and has feature of converting frequency selective fading into flat fading channel. However OFDM has its sensitivity against carrier frequency offset which causes Inter Carrier Interference (ICI). In this paper we have tried to give an efficient ICI cancellation method termed as ICI self cancellation.

Keywords: OFDM, Interference, Inter Carrier Interference, Doppler shift, Frequency miss match.