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跳时超宽带无线传感网生存期的上界 被引量：1

Upper Bound on Lifetime of Time Hopping Ultra Wide Band Wireless Sensor Network
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摘要 生存期是跳时超宽带无线传感网的一个关键参数.考虑了由n个随机分布在面积为S圆上的传感节点和一个汇聚节点组成的跳时超宽带无线传感网,利用Vapnik-Chervonenkis定理和正六边形棋盘格子覆盖传感区域,推导出了当某个源传感节点发射包含R比特的数据分组通过多跳方式到达汇聚节点时的能量消耗下界.基于能耗与生存期的关系,给出了跳时超宽带无线传感网生存期的上界.研究结果表明,跳时超宽带无线传感网生存期的上界与节点密度n/S的(α-1)/2次方成正比(α为路径损耗指数).因此,大规模密集跳时超宽带传感网更有实用价值. The lifetime is a critical parameter for time hopping ultra wide band （TH-UWB） wireless sensor networks. Based on a TH-UWB wireless sensor network with n sensor nodes which are randomly located on a disk of area S and a sink node, the lower bound on the energy dissipation of some sensor node transmitting one data packet containing R bits to the sink node by multihop fashion is derived on the basis of Vapnik-Chervonenkis theory and hexagon te.~sellation covering sensor region. Then the upper bound on the lifetime of TH-UWB wireless sensor networks is obtained based on the relation of the lifetime and energy dissipation. The result indicates the upper bound on the lifetime of TH-UWB wireless sensor networks is in proportion to the （α - 1）/2 order of the node density n/S, where α is the path 1oss exponent. Thus, the large-scale dense TH-UWB wireless sensor network is more practical.
作者 徐娟 郭爱煌 赵晓群
机构地区 同济大学电子与信息工程学院
出处 《同济大学学报（自然科学版）》 EI CAS CSCD 北大核心 2008年第3期388-391,共4页 Journal of Tongji University:Natural Science
关键词 无线传感网 超宽带 生存期 wireless sensor network ultra wide band lifetime
分类号 TP393 [自动化与计算机技术—计算机应用技术]
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参考文献10

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同被引文献7

  • 1Zhang J, Orlik P, Sahinoglu Z, et al. UWB systems for wireless sensor networksEJ]. Proceedings of the IEEE, 2009, 97(2): 313.
  • 2Bhardwaj M, Garnett T, Chandrakasan A. Upper bounds on the lifetime of sensor networks [C]//Proceedings of IEEE International Conference on Communications. New York: IEEE, 2001 : 785-790.
  • 3Cheng B C, Liao G T, Tseng R Y, et aL. Network lifetime bounds for hierarchical wireless sensor networks in the presence of energy constraints [J]. Computer Networks, 2012, 56(2): 820.
  • 4Zhang H, Hou J. On deriving the upper bound of a-lifetime for large sensor networks [C]//Proceedings of the International Symposium on Mobile Ad Hoe Networking and Computing (MoBiHoc). New York: ACM, 2004:121-132.
  • 5Xu J, Jiang C J, Guo A H, et al. Lower bounds on lifetime of ultra wide band wireless sensor networks E J 1. Wireless Networks, 2010, I6(6):1739.
  • 6Xu J , Cheng J J, Han L N, et al. Lifetime scaling law of ordinary clustering ultra-wideband sensor network [ C l// Proceedings of 9th International Wireless Communications and Mobile Computing Conference. New York: IEEE, 2013: 1464- 1469.
  • 7徐娟,洪永发,王成,白星振.常规分簇的超宽带传感网生存期的上界[J].软件学报,2011,22(2):313-322. 被引量：1

引证文献1

同济大学学报（自然科学版）
2008年 第3期

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