【摘要】 能量有效协议是Ad Hoc网络中的一个研究热点。评价和比较各种能量有效协议节能效果的关键在于建立能够准确计算能量花费的仿真模型。总结了已存在的各种能量模型,对这些模型进行了比较分析,讨论了各模型的优缺点。提出了线性能量模型的改进方案,该方案不仅能够计算出所有通信状态的能量花费,而且对于发送状态,能够计算出不同发射功率下的能量花费。仿真试验给出了各种能量模型的实现和结果对比,还通过比较DSDV和dPAMEEL两种协议的能量花费,验证了所提出的改进方案的有效性。更多还原

【Abstract】 The energy-constrained nature of wireless ad hoc networks calls for the protocols that use the energy efficiency as its primary design goal.In order to evaluate and compare the energy-aware protocols in terms of their energy efficiency,an energy-consumption model which can accurately compute the energy consumed by the data communication activities is crucial.A comprehensive summary of the existing energy-consumption models was given,and the characteristics of each model were discussed in detail.A new energy-consumption model was proposed based on the linear model.All nodes in the new model could change their RF power-rate and radio states according to the communication requirement,and their energy cost could be calculated correctly.The implementations and simulation results of the existing energy models were given.By comparing DSDV against dPAMEEL,it is shown that the energy model can effectively calculate the energy consumption for different energy-aware protocols.更多还原