无线传输中基于马尔可夫决策的高能效策略  

MDP-based energy efficient policy for wireless transmission

作　　者：林晓辉[1] 谭宇[1] 张俊玲[1] 杨超[1] 刘静[1] 

机构地区：[1]深圳大学信息工程学院现代通信与信号处理实验室,广东深圳518060

出　　处：《系统工程与电子技术》2014年第7期1433-1438,共6页Systems Engineering and Electronics

基　　金：国家自然科学基金(61171071,60602066);深圳市科技计划项目资助(JC201005250035A,JC201005280404A,JC201005250047A,JCYJ20120613115037732,JC201005250085A,GJHS20120621143440025)资助课题

摘　　要：在无线网络中,终端的能量通常都是有限的。为了延长终端的寿命,需要更加高效地使用其有限的能量资源。在假设恒定传输功率的情景下,通过将终端的传输问题建模成为马尔可夫决策过程(Markov decision process,MDP),提出了一种高能效传输策略。仿真结果表明,与以往的门限传输策略相比较,在满足通信性能要求的前提下,所提出的传输策略可有效地减少能量耗费,延长终端的寿命。In wireless networks,terminals are usually energy-constrained.To extend the lifetime of the wireless terminals,the limited energy must be utilized in an efficient manner.Under the assumption of constant power transmission,by modeling the transmission problem as a Markov decision process,an energy-efficient transmission policy（EETP）is proposed for the terminals.Simulation results shows that compared with threshold transmission policy（TTP）,the proposed policy can reduce the energy consumption and significantly extend the terminal＇s lifetime significantly.

关 键 词：无线网络 高能效传输策略 马尔可夫决策过程 恒定功率 

分 类 号：TN929.52[电子电信—通信与信息系统]