SLIPT in Joint Dimming Multi-LED OWC Systems with Rate Splitting Multiple Access
CoRR(2024)
摘要
Optical wireless communication (OWC) systems with multiple light-emitting
diodes (LEDs) have recently been explored to support energy-limited devices via
simultaneous lightwave information and power transfer (SLIPT). The energy
consumption, however, becomes considerable by increasing the number of
incorporated LEDs. This paper proposes a joint dimming (JD) scheme that lowers
the consumed power of a SLIPT-enabled OWC system by controlling the number of
active LEDs. We further enhance the data rate of this system by utilizing rate
splitting multiple access (RSMA). More specifically, we formulate a data rate
maximization problem to optimize the beamforming design, LED selection and RSMA
rate adaptation that guarantees the power budget of the OWC transmitter, as
well as the quality-of-service (QoS) and an energy harvesting level for users.
We propose a dynamic resource allocation solution based on proximal policy
optimization (PPO) reinforcement learning. In simulations, the optimal dimming
level is determined to initiate a trade-off between the data rate and power
consumption. It is also verified that RSMA significantly improves the data
rate.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要