Efficient index modulation techniques for 5G and beyond
Date
2023-11-16
Authors
Mgobhozi, Bhekinkosi
Nleya, Bakhe
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE
Abstract
Index modulation (IM) techniques are emerging
as promising approaches to improve spectral efficiency and
reliability for 5G/future wireless networks. This paper pro vides an overview of key IM schemes including spatial modula tion, orthogonal frequency division multiplexing with index
modulation (OFDM-IM), and enhanced variants like SIM OFDM. The spectral efficiency gains of these techniques are
quantified mathematically. Spatial modulation uses antenna
indices to convey additional information bits, while OFDM-IM
utilizes subcarrier indices. SIM-OFDM further activates sub carriers selectively based on incoming bits. Experiments demonstrate spectral efficiency improvements over classical
OFDM.
Description
Keywords
Index modulation, Orthogonal frequency division multiplexing, Spatial modulation, Maximum likelihood detection
Citation
Mgobhozi, B. and Nleya, B. 2023. Efficient index modulation techniques for 5G and beyond. 2023 International Conference on Electrical, Computer and Energy Technologies (ICECET). Presented at: 2023 International Conference on Electrical, Computer and Energy Technologies (ICECET). doi:10.1109/icecet58911.2023.10389505
DOI
10.1109/icecet58911.2023.10389505