The emerging intelligent reflecting surface (IRS) technology introduces the potential of controlled light propagation in visible light communication (VLC) systems. This concept opens the door for new applications in which the channel itself can be altered to achieve specific key performance indicators. In this paper, for the first time in the open literature, we investigate the role that IRSs can play in enhancing the link reliability in VLC systems employing non-orthogonal multiple access (NOMA). We propose a framework for the joint optimisation of the NOMA and IRS parameters and show that it provides significant enhancements in link reliability. The enhancement is even more pronounced when the VLC channel is subject to blockage and random device orientation.
翻译:新兴的智能反射表面(IRS)技术在可见光通信系统中引入了受控光传播的潜力,这一概念为新应用打开了大门,从而可以改变频道本身,从而达到具体的关键业绩指标,在本文件中,首次在公开文献中,我们调查IRS在使用非垂直多重访问(NOMA)的VLC系统中提高链接可靠性方面可以发挥的作用。我们提出了联合优化NOMA和IRS参数的框架,并表明它大大加强了链接的可靠性。当VLC频道受到阻隔和随机装置定向时,这种增强就更加明显。