In this paper, we focus on the optimal beamformer design for rate splitting multiple access (RSMA)-aided multipleinput single-output (MISO) visible light communication (VLC) networks. First, we derive the closed-form lower bounds of the achievable rate of each user, which are the first theoretical bound of achievable rate for RSMA-aided VLC networks. Second, we investigate the optimal beamformer design for RSMA-aided VLC networks to maximize the sum rate under the optical and electrical power constraints. In addition, we show that the proposed RSMA-aided networks can achieve superior performance compared with space-division multiple access (SDMA) and nonorthogonal multiple access (NOMA).

翻译：在本文中,我们侧重于分速率、多存取(RSMA)辅助的多投入单发光通信网络的最佳光束设计。首先,我们得出每个用户可实现率的封闭式下限,这是RSMA辅助的VLC网络第一个可实现率的理论约束。第二,我们调查RSMA辅助的VLC网络的最佳光束设计,以便在光电和电力限制下最大限度地实现总和率。此外,我们还表明,拟议的RSMA辅助网络与空间司多存取(SDMA)和非横向多存取(NOMA)相比,能够取得优异的性能。