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复合衰落信道的衰落统计分析 被引量：5

Fade Statistics in Composite Fading Channels
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摘要 该文基于条件概率密度方法分析复合衰落信道下接收信号包络及其导数的联合概率密度函数,由此得到了复合衰落信道的平均电平交叉率和平均衰落持续时间的统一表达式,最后结合高斯-厄米特积分给出Rayleigh-Lognormal,Ricean-Lognormal,Nakagami-Lognormal 3种典型复合衰落下接收包络的概率密度函数、累积分布函数、平均电平交叉率、平均衰落持续时间的近似解析式。仿真结果验证了理论分析的正确性。 The Joint Probability Density Function （JPDF） of signal envelope and its derivative, which is subjected to composite fading, is analyzed by means of conditional probability density. New uniform expressions for the average Level Crossing Rate （LCR） and Average Fade Duration （AFD） of signal envelope are derived using the above obtained JPDF, then some results of the PDF, Cumulative Distribution Function （CDF）, average LCR and AFD of signal envelopes, characterized by Rayleigh-Lognormal, Ricean-Lognormal, Nakagami-Lognormal fading models, are derived via Gauss-Hermite quadrature. Simulation results validate the correctness of these expressions.
作者 王晓东 卜智勇 陈允峰
机构地区 海军航空工程学院电子工程系 上海无线通信研究中心 中国电子科技集团公司第三十六研究所
出处 《电子与信息学报》 EI CSCD 北大核心 2008年第3期643-647,共5页 Journal of Electronics & Information Technology
基金 国家863计划项目(2005AA123510)资助课题
关键词 复合衰落信道 条件概率密度 平均电平交叉率 平均衰落持续时间 Composite fading channels Conditional probability density Average Level Crossing Rate （LCR） Average Fade Duration （AFD）
分类号 TN929.5 [电子电信—通信与信息系统]
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参考文献14

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同被引文献57

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  • 2严军,王新.分布式无线家庭控制网络的研究与设计[J].计算机工程,2006,32(17):268-270. 被引量：7
  • 3张正勇,孙智,王刚,余荣,梅顺良.基于移动锚节点的无线传感器网络节点定位[J].清华大学学报（自然科学版）,2007,47(4):534-537. 被引量：20
  • 4CEERRI G, RUSSO R Application of an automatic tool for the planning of a cellular network in a real town[J]. IEEE Transactions on Antennas and Propagation, 2006, 54(10): 2890-2901.
  • 5VIEIRA P, QUELUZ P, RODRGUES A. A dynamic propagation prediction platform over irregular terrain and buildings for wireless communications[A]. 2007 IEEE 66th Vehicular Technology Conference[C]. 2007. 884-888.
  • 6A1-QUTAYRI M, BARADA H, A1-MEHAIRI S, et al. A framework for an end-to-end secure wireless smart home system[A]. 2008 IEEE International Systems Conference Proceedings[C]. 2008. 380-386.
  • 7HE Y F, LEE I, GUAN L. Network lifetime maximization in wireless visual sensor networks using a distributed algorithm[A]. Proceedings of the 2007 IEEE International Conference on Multimedia and Expo[C]. 2007.2174-2177.
  • 8HAO X H, KANG Y, WANG Y H. Geographical-based multihop clustering algorithm for distributed wireless sensor network[A]. Proceedings of the 7th World Congress on Intelligent Control and Automation[C]. 2008.3230-3235.
  • 9PAPALEXDI N, WALKER In T O, GKIONIS C, et al. A distributed approach to beam forming in a wireless sensor network[A]. Conference Record of the 41st Asilomar Conferenee on Signals, Systems and Computers[C]. 2007.606-610.
  • 10OH S C, KIM S W. Reducing CPU power cost of cluster system[A]. 10th International Conference on Advanced Communication Technology[C]. 2008. 2076-2079.

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电子与信息学报
2008年 第3期

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