A distributed energy saving mechanism in wireless access network

In this paper we come up with a division method of station operating period, and describe a distributed energy saving mechanism based on X2AP which stepwise turns off stations. We also propose a method to evaluate energy efficiency. To verify our proposed mechanism, we used data collected from practical network of four regions in simulation. The result shows that our mechanism can achieve better energy-saving gains than most energy-saving mechanisms with one-time execution. As far as SINR and RSRP is concerned, our mechanism also performed better than multi-stage contrast mechanism.