An Analysis for the Performance of the OFDM-IM Systems Impaired by Carrier Frequency Offset

Satwika, B and Hari, KVS (2021) An Analysis for the Performance of the OFDM-IM Systems Impaired by Carrier Frequency Offset. In: 29th European Signal Processing Conference, EUSIPCO 2021, 23-27 Aug 2021, Dublin, pp. 1661-1665.

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Abstract

For the last years, a great deal of interest has been paid to OFDM systems with index modulation (OFDM-IM) because of its energy efficiency and flexibility in the spectral domain. However, these systems suffer from carrier frequency offset that degrades the system performance. In a recent paper, an attempt was made to evaluate the performance in terms of bit error rate (BER) when the received signal is disturbed by an additive white Gaussian noise and a carrier frequency offset (CFO). Nevertheless, the approximations made in the existing analysis resulted in inaccurate simulation results. In this paper, the approximations we consider seem to be well-suited since the closed form expression of the BER is now consistent with the simulations results based on a maximum-likelihood detector. © 2021 European Signal Processing Conference. All rights reserved.

Item Type:	Conference Paper
Publication:	European Signal Processing Conference
Publisher:	European Signal Processing Conference, EUSIPCO
Additional Information:	The copyright for this article belongs to European Signal Processing Conference, EUSIPCO
Keywords:	Bit error rate; Energy efficiency; Frequency allocation; Gaussian noise (electronic); Maximum likelihood; White noise, Additive White Gaussian noise; Bit-error rate; Carrier frequency offsets; Index modulation; Modulation systems; OFDM systems; Performance; Received signals; Spectral domains; Systems performance, Orthogonal frequency division multiplexing
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering
Date Deposited:	07 Feb 2022 12:22
Last Modified:	07 Feb 2022 12:22
URI:	http://eprints.iisc.ac.in/id/eprint/71287

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