1Advanced Communication Research Institute (ACRI), Electrical Engineering Department
Sharif University of Technology
2Advanced Communication Research Institute (ACRI) Department of Electrical Engineering Sharif University of Technology
3Sharif University of Technology
4Department of Electrical Engineering Shahed University
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.