动态关断资源栅格的异构无线网络基站节能算法

针对现有的基于载频/时隙关断的基站节能算法没有考虑异构网络之间的协同或者只考虑单一的业务与实际网络情况不相适应的问题,在异构网络环境下提出了动态关断资源栅格(RG,resource grid)的基站节能新算法——DRGSM(dynamic resource grid shut mode)算法。该算法根据网络的即时负载,当有业务接入时,动态打开RG以满足业务的QoS要求;当RG闲置时,即将其关断以实现节能。仿真结果表明,所提算法较现有的基于载频/时隙关断的基站节能算法,明显地降低了能耗,提高了节能百分比。

Energy-efficient algorithm of base station based on dynamic resource grid shut in heterogeneous wireless networks

Aiming at solving the problem that the energy efficient effect of current energy saving algorithms of base station based on shutting down carriers/time slots was not ideal,a novel energy saving algorithm of base station based on shutting down RG in heterogeneous networks dynamically was proposed,which called DRGSM algorithm.According to the instantaneous load of the networks,when there were new services to be served,the system would open new resource grids to satisfy their requests for QoS;when the resource grids were free,it shut them down in order to achieve the goal of energy saving.Simulation results show that the proposed algorithm has a better performance in energy deduction and energy saving percentage than current energy saving algorithms of the base station based on shutting down carriers/time slots.