Secrecy Energy Efficiency Maximization in IRS-Assisted VLC MISO Networks With RSMA: A DS-PPO Approach. - Yangbo Guo; Jianhui Fan; Ruichen Zhang; Baofang Chang; Derrick Wing Kwan Ng; Dusit Niyato; Dong In Kim (IEEE Trans. Wirel. Commun., 2025)