Circuits and Systems for Receiving, Transmitting and Signal Processing

Symmetrical iterative algorithm for cancelling inter-channel interference of SEFDM signals

S. A. Suhotskiy, S. V. Zavyalov, A. S. Ovsyannikova, I. I. Lavrenyuk

Peter the Great St. Petersburg Polytechnic University

Abstract: This article deals with spectrally efficient frequency-division multiplexing signals (SEFDM). Authors considered symmetrical and asymmetrical iterative algorithms to prevent BER performance degradation. These algorithms reduce inter-channel interference (ICI) between the subcarriers, which leads to better value of BER performance. The authors analyzed complexity and results of the algorithms, and determined the best conditions for a symmetrical algorithm with different number of subcarriers and different frequency multiplexing coefficient.

Keywords: SEFDM, demodulation, algorithm, BER performance, feedback on decision.

UDC: 621.391.8

Received: 18.04.2022

Language: English

DOI: 10.18721/JCSTCS.15102