Performance evaluation of index modulation with single subcarrier activation

Zhang, Hongming, Sui, Zeping, Basar, Ertugrul, Yang, Lie Liang and Hanzo, Lajos (2021) Performance evaluation of index modulation with single subcarrier activation. In 2021 IEEE Wireless Communications and Networking Conference, WCNC 2021. vol. 2021-March, IEEE. 7 pp . (doi:10.1109/WCNC49053.2021.9417409).

Abstract

Index modulation (IM) has been recognized as a compelling candidate for the next generation wireless networks. This paper considers index modulation-orthogonal frequency division multiplexing (IM-OFDM) with single subcarrier activation, where a single subcarrier is activated for transmitting an amplitude-phase modulated (APM) symbol in each IM group. Furthermore, a reduced-complexity approximate message passing aided symbol detector (AMPD) is proposed for reducing the detection complexity at the receiver side. The system performance of IM-OFDM with single subcarrier activation is investigated in terms of spectral efficiency (SE), peak-to-average power ratio (PAPR), bit error ratio (BER), as well as detection complexity. Our studies show that IM-OFDM with single subcarrier activation is capable of attaining low PAPR. Moreover, IM-OFDM with single subcarrier activation outperforms the classic OFDM using APM for a SE of 1 bit/s/Hz, when high power amplifier (HPA) is employed. Furthermore, our investigation shows that low detection complexity can be achieved by the proposed AMPD for IM-OFDM with single subcarrier activation at the cost of a certain BER performance loss.

This record has no associated files available for download.

Contributors

Author: Lie Liang Yang

Author: Lajos Hanzo

Download statistics