A Novel Reconfigurable Intelligent Surface-Supported Code Index Modulation-Based Receive Spatial Modulation System

ÖZDEN B. A., Cogen F., AYDIN E., İLHAN H., Basar E., Wen M.

25th IEEE Wireless Communications and Networking Conference, WCNC 2024, Dubai, Birleşik Arap Emirlikleri, 21 - 24 Nisan 2024 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Doi Numarası: 10.1109/wcnc57260.2024.10571099
  • Basıldığı Şehir: Dubai
  • Basıldığı Ülke: Birleşik Arap Emirlikleri
  • Anahtar Kelimeler: bit error rate, code index modulation, index modulation, quadrature amplitude modulation, Reconfigurable intelligent surface, spatial modulation, wireless communications
  • Yıldız Teknik Üniversitesi Adresli: Evet

Özet

Today's wireless communication networks have many requirements such as high data rate, high reliability, low latency, low error data transmission, and high energy efficiency. High-performance index modulation (IM) techniques and reconfigurable intelligent surface (RIS) technology, which has recently attracted the attention of researchers, are strong candidates to meet these requirements. This paper introduces a novel RIS-supported code IM-based receive spatial modulation (RIS-CIM-RSM) system. The proposed RIS-CIM-RSM system uses quadrature amplitude modulation (QAM) symbols, receive antenna indices, and spreading code indices for wireless data transmission. In the proposed system, an RIS applies a phase rotation that maximizes signal-to-noise ratio (SNR) to the signals coming to the reflecting elements and directs them to the selected receive antenna. Performance analyses of the proposed RIS-CIM-RSM system such as data rate, throughput, and energy saving are obtained. The results obtained show that the proposed RIS-CIM-RSM system is superior to the counterpart RIS-based IM systems in the literature in terms of data rate, throughput, energy saving, and error performance.