中文摘要：

无线传感器网络节点能量受限，部署环境复杂，如何提高网络工作时的能效一直是研究无线传感器网络的热点，而能量模型的建立与优化是进行能效分析的基础。就网络通信中，点到点的单跳传输网络模型进行了总结分析，讨论了其中的两种主要传输模式及可靠传输的能量模型，在原有可靠传输能量模型的基础上，采用基于传输失败概率的新模型参数对原有模型进行了重新设计，同时增加了非可靠传输能量模型，并对所提出的新模型做了仿真实验及评估比较。仿真结果显示新模型能很好反映网络的能耗特性，而非可靠传输模型比可靠传输模型有更低的能耗。

英文摘要：

In wireless sensor network deployments, sensor nodes are usually energy constrained while circumstance intricate,and how to improve the energy efficiency of wireless sensor networks is always a hot spot in recent researches, of all the works, the modeling and optimization of the energy consumption process are fundamental for energy efficiency analysis. In this paper,firstly,we make a summarization and analysis of the single hop transmission model in peer to peer communication wireless sensor network, two transmission mode and the reliable transmission energy model are discussed, then, based on the reliable transmission energy model, we introduce a new version design of the previous model by concerning the transmission failure probability,and also we promote a new model names as un-reliable transmission energy model,in the end, experimental simulation and evaluation with comparison are made to the new designed energy model. The simulation results show that the new model has very good characters on energy consumption expression during transmission, and the new added un-reliable transmission energy model has a better performance in energy consumption than the reliable one.