认知无线电网络中频谱感知能耗的建模研究
发布时间:2018-05-06 07:51
本文选题:伽玛分布 + 无线电频谱 ; 参考:《系统仿真学报》2017年10期
【摘要】:在认知无线电网络中,频谱感知过程的能量消耗是研究热点。提出一种基于泊松过程可用于统计干扰受限下的能量消耗进行建模,获得频谱感知能量消耗。频谱感知能量作为认知无线电网络的次要用户数量、空间密度和跳数的函数,可以建模为伽玛截断分布。将该模型用于时域感知、空域感知以及时域-空域联合感知在频谱感知过程中认知用户的能量消耗统计分析,仿真及分析结果表明了该模型的科学合理性。
[Abstract]:In cognitive radio networks, the energy consumption of spectrum sensing is a hot topic. In this paper, a Poisson process can be used to model the energy consumption under statistical interference constraints, and the spectrum sensing energy consumption can be obtained. Spectral sensing energy, as a function of the number of secondary users, spatial density and hops of cognitive radio networks, can be modeled as a gamma truncated distribution. The model is applied to the statistical analysis of energy consumption of cognitive users in time domain perception, spatial domain perception and joint time domain spatial perception. The simulation and analysis results show that the model is scientific and reasonable.
【作者单位】: 昆明理工大学信息工程与自动化学院;
【基金】:云南省科技厅基金(KKS0201403016) 云南省食品安全研究院项目(KKSTJ201303008)
【分类号】:TN925
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本文编号:1851433
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