Frequency domain oversampled OFDM with Index modulation for SFBC-based MIMO system in high-speed wireless communications

• Tanairat Mata,
• Pisit Boonsrimuang,

Vol. 19, No. 1, January 31, 2025
10.3837/tiis.2025.01.015, Download Paper (Free):

• multiple-input multiple-output
• Oversampled OFDM
• Index modulation
• Space-Frequency Block Code
• Fast-fading channel estimation

Abstract

This paper presents a novel approach to the development of a multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing with index modulation (OFDM-IM) using the space-frequency block code (SFBC) technique. The system, which offers a high transmission data rate and high performance in fast-fading channel conditions even with an oversampled OFDM-IM signal and imperfect channel estimation, represents a significant advancement in the field. The main focus of this paper is to analyze the performance of this novel SFBC-based MIMO system with an oversampled OFDM-IM signal in terms of the bit-error rate and throughput. Computer simulations unequivocally demonstrate that the performance of this system not only meets but surpasses that of conventional systems in high-speed wireless communications, marking a significant advancement in the field. The potential of the proposed method to inspire further research and development in the field is a key highlight, aiming to motivate the audience to explore new possibilities and contribute to the advancement of wireless communications.

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