Forward Interference Cancellation in Spectrally Efficient Frequency Division Multiplexing Systems

Mahmoud Naeiny

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URL :   http://research.shahed.ac.ir/WSR/WebPages/Report/PaperView.aspx?PaperID=31859
Date :  2014/09/09
Publish in :    International Symposium on Telecommunication


Keywords :Forward

Abstract :

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OFDM is widely known as an effective modulation in communication systems. Recent studies have shown that the bandwidth can be reduced further by violating the orthogonality criteria- Spectrally Efficient FDM systems. Various studies are based on extracting the transmitted data in the presence of inter-channel-interference at the receiver side. The aim of this paper is to propose a new method for interference cancellation at the transmitter side through active constellation extension. Experimental results regarding the proposed method has shown that interference-free communication is possible in high SNRs. Also the performance of the algorithm is acceptable as compared to receiver-based methods at low-SNR AWGN channels.