SMDP-based Downlink Packet Scheduling Scheme for Solar Energy Assisted Heterogeneous Networks
Abstract
Renewable energy assisted heterogeneous networks can improve system capacity and reduce conventional energy consumption. In this paper, we propose a semi-Markov decision process (SMDP)-based downlink packet scheduling scheme for solar energy assisted heterogeneous networks (HetNets), where solar radiation is modeled as a continuous-time Markov chain (CTMC) and the arrivals of multi-class downlink packets are modeled as Poisson processes. The proposed downlink packet scheduling scheme can be compatible with the mainstream wireless packet networks such as long-term evolution (LTE) networks and the fifth-generation (5G) networks because the SMDP is a real-time admission control model. To obtain an asymptotically optimal downlink packet scheduling policy, we solve the semi-Markov decision problem using the relative value iteration algorithm under average criterion and the value iteration algorithm under discounted criterion, respectively. The simulation results show that the average cost of the SMDP-based packet scheduling scheme is less than that of the greedy packet scheduling scheme.
Cite
@article{arxiv.1803.09145,
title = {SMDP-based Downlink Packet Scheduling Scheme for Solar Energy Assisted Heterogeneous Networks},
author = {Qizhen Li and Jie Gao and Jinming Wen and Xiaohu Tang and Lian Zhao and Limin Sun},
journal= {arXiv preprint arXiv:1803.09145},
year = {2018}
}