Base Station Switching and Sleep Mode Optimization With LSTM-Based User Prediction

• Published in: IEEE Access
• Main Authors: Gunhee Jang, Namkyu Kim, Taeyun Ha, Cheol Lee, Sungrae Cho
• Format: Article
• Language: English
• Published: IEEE 2020-01-01
• Subjects: Base station switching; base station sleep mode; LSTM prediction; Lyapunov optimization
• Online Access: https://ieeexplore.ieee.org/document/9292905/

The base station (BS) switching technique has recently attracted considerable attention for reducing power consumption in wireless networks. In this paper, we propose a novel BS switching and sleep mode optimization method to minimize the power consumption, while ensuring that the arriving user traffic is sufficiently covered. First, the user traffic in multiple time slots was predicted using the long-short term memory (LSTM) prediction model. Subsequently, we solved the Lyapunov optimization problem to obtain the optimal BS switching solution from the trade-off relationship between the reduced power consumption by BS switching and the user traffic handled in time series. Finally, we selected the sleep mode for the switched result by calculating the wake-up time and the power consumption ratio of each sleep mode. Simulation results confirm that the proposed algorithm successfully reduces the total power consumption by approximately 15% while preventing the user data queue from diverging in multiple time slots.