Performance Evaluation of RIS-Assisted Spatial Modulation for Downlink Transmission
<|reference_start|>Performance Evaluation of RIS-Assisted Spatial Modulation for Downlink Transmission: This paper explores the performance of reconfigurable intelligent surface (RIS) assisted spatial modulation (SM) downlink communication systems, focusing on the average bit error probability (ABEP). Notably, in scenarios with a large number of reflecting units, the composite channel can be approximated by a Gaussian distribution using the central limit theorem. The receiver utilizes a maximum likelihood detector to recover information in both spatial and symbol domains. In the proposed RIS-SM system, we analytically derive a closed-form expression for the union tight upper bound of ABEP, employing the Gaussian-Chebyshev quadrature method. The validity of these results is rigorously confirmed through exhaustive Monte Carlo simulations.<|reference_end|>
@article{zhu2024performance,
    title={Performance Evaluation of RIS-Assisted Spatial Modulation for Downlink
  Transmission},
    author={Xusheng Zhu, Qingqing Wu, Wen Chen},
    journal={arXiv preprint arXiv:2404.00872},
    year={2024},
    archivePrefix={arXiv},
    eprint={2404.00872},
    primaryClass={cs.IT eess.SP math.IT}
}