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中文摘要：
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。
英文摘要：
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.
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