Ijpres Efficient Method for Reducing Ici in Ofdm Systems

Inter Carrier Efficient Method for falling ICI in OFDM Systems Interference (ICI) attributable to the Carrier Frequency Offset (CFO) and Doppler shifts; highly disgrace the performance of OFDM system. For OFDM communication system which is a capable technique for high data rate transmission, the theoretical BER and CIR are complicated to obtain in presence of ICI. The BER of the expected signals are very sensitive to Doppler shifts and frequency offsets (reasons of ICI). This paper presents an efficient and improved ICI Self-Cancellation technique. The proposed technique improves the system throughput and reduces the BER. The performance comparison results show that proposed technique has better BER and improved CIR than standard OFDM and existing sc scheme. Inter Carrier Interference (ICI) caused by the Carrier Frequency Offset (CFO) and Doppler shifts; highly disgrace the performance of OFDM system. For OFDM communication system which is a promising technique for high data rate transmission, the theoretical BER and CIR are difficult to obtain in presence of ICI. The BER of the received signals are very sensitive to Doppler shifts and frequency offsets (reasons of ICI). This paper presents an efficient and improved ICI Self-Cancellation technique. The proposed technique improves the system throughput and reduces the BER. The performance comparison results show that proposed technique has better BER and improved CIR than standard OFDM and existing sc scheme.