STAR-RIS-NOMA Networks: An Error Performance Perspective

Mahmoud Aldababsa; Aymen Khaleel; Ertugrul Basar

STAR-RIS-NOMA Networks: An Error Performance Perspective

Information Theory 2022-06-01 v2 Signal Processing math.IT

Authors: Mahmoud Aldababsa , Aymen Khaleel , Ertugrul Basar

Abstract

This letter investigates the bit error rate (BER) performance of simultaneous transmitting and reflecting reconfigurable intelligent surfaces (STAR-RISs) in non-orthogonal multiple access (NOMA) networks. In the investigated network, a STAR-RIS serves multiple non-orthogonal users located on either side of the surface by utilizing the mode switching protocol. We derive the closed-form BER expressions in perfect and imperfect successive interference cancellation cases. Furthermore, asymptotic analyses are also conducted to provide further insights into the BER behavior in the high signal-to-noise ratio region. Finally, the accuracy of our theoretical analysis is validated through Monte Carlo simulations. The obtained results reveal that the BER performance of STAR-RIS-NOMA outperforms that of the classical NOMA system, and STAR-RIS might be a promising NOMA 2.0 solution.

Keywords

wireless communication

Cite

@article{arxiv.2202.09597,
  title  = {STAR-RIS-NOMA Networks: An Error Performance Perspective},
  author = {Mahmoud Aldababsa and Aymen Khaleel and Ertugrul Basar},
  journal= {arXiv preprint arXiv:2202.09597},
  year   = {2022}
}

Comments

Analyses are generalized to the multiple users scenario. Accepted in IEEE Communications Letters

STAR-RIS-NOMA Networks: An Error Performance Perspective

Abstract

Keywords

Cite

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