基于能效的数据包长度自适应算法的研究

随着无线移动网络3G、4G技术的不断发展和普及,利用无线数据传输终端进行数据交互已经成为信息化发展的重要环节.数据传输终端通信模块消耗的能量是终端各模块消耗的总能量的主要部分,而数据包长度作为通信的主要参数直接影响了终端能耗.在公网条件下,针对节省数据传输终端能耗,延长电池使用寿命的问题,提出了基于SPSA的数据包长度自适应算法ASPSA(adapted simultaneous perturbation stochastic approximation).该算法可根据信道状况,快速计算出该网络状况下最优数据包长,从而保证数据传输终端能耗最低.理论分析及仿真表明ASPSA算法在公网条件下可以有效提高无线数据传输终端的能效.

Packetlength adaptation for improving the energy efficiency in public network

With the development of wireless mobile network,3G and 4G technologies are more and more mature nowadays.In the case of public network,it has been a very important part to use RTU (remote terminal unit) for data exchange in our daily lives.Data communication is the main energy consumption part during the whole transmission process.As the main the communications parameter,packet size directly affects the RTU energy consumption.In order to save energy and extend battery life,this paper proposes a packet length adaptive algorithm ASPSA(adapted simultaneous perturbation stochastic approximation) based on SPSA,which can calculate the most effective payload length and obtain the most optimal packet length.The results of theoretical analysis,simulation and spot tests show that the algorithm aroused in this article can improve the energy efficiency of wireless data transmission terminals greatly.