基于随机点过程的IEEE802.15.3a超宽带信道模型研究  

Study on IEEE802.15.3a Ultra-Wideband Channel Model Based on Random Point Processes

作　　者：殷潜[1] 杨莘元[1] 毕晓艳 蒋华[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《系统仿真学报》2008年第2期425-428,533,共5页Journal of System Simulation

摘　　要：基于随机点过程理论分析了IEEE802.15.3a超宽带信道模型,提出了信道模型的数学模型来解决其易于计算机仿真而难于理论分析的问题。得到的数学模型分成四个统计独立的部分,包括一个确定值、两个有限二维泊松过程以及一个有限二维泊松簇生过程。利用该数学模型求出了IEEE802.15.3a信道模型在一定时间窗内到达的平均多径数、平均多径数密度分布以及功率延迟分布,得到了闭合的表达式。表达式的计算结果和计算机仿真结果相吻合,从而验证了该数学模型的有效性。Based on the theory of random point processes,the IEEE802.15.3a ultra-wideband channel model was analyzed and a mathematical model was proposed in order to make it not just ease to simulation but amendable to theoretical analysis. The obtained mathematical model was constructed by four statistically independent components which included an invariable component,two finite two-dimensional Poisson processes and a finite two-dimensional Poisson cluster process. Closed expressions for the mean number of paths arrived in a time window,mean path number density distribution profile and power-delay profile were found through the proposed mathematical model.Simulation results accord with the results obtained by these expressions,which confirms the validity of the proposed mathematical model.

关 键 词：超宽带 IEEE802.15.3a信道模型 随机点过程 功率延迟分布 

分 类 号：TN929.5[电子电信—通信与信息系统]