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无线网络中隐藏终端的干扰特性研究 被引量：2

Research on Interference Characteristics of Hidden Terminal in Wireless Network
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摘要 无线网络中,隐藏终端对分组接收的干扰是造成网络性能下降的主要原因之一。因此,对其进行深入细致的研究具有重要意义。在仿真工具OMNeT++中,对IEEE 802.11a标准所规定的物理层变速率传输机制进行了精确的仿真建模,并在此基础上进一步研究了不同传输模式与分组冲突情况下的隐藏终端干扰特性。研究表明,隐藏终端干扰特性与传输模式、发送端和接收端之间的距离、分组冲突的重叠程度以及数据分组格式等均有较强的相关性。研究结果可以为设计网络协议,提高网络性能提供重要的参考。 The interference caused by hidden terminal is one of the key reasons that leads to network performance degradation in wireless network.Therefore,the in-depth research of interference from hidden terminal is of great significance.An accurate physical layer modeling according to the multirate transmission mechanism of IEEE 802.11a in OMNeT＋＋ is built,and a further investigation on interference characteristics of hidden terminal is made,in which the influences including different transmission modes and packet overlapping percentages are considered.It confirms that the interference characteristics of hidden terminal have strong relationship with transmission mode,the distance between transmitter and receiver,packet overlapping percentage and packet format.The research results provide an important reference for designing network protocol and improving network performance.
作者 何婧 李波 陈轶
机构地区 西北工业大学电子信息学院
出处 《测控技术》 CSCD 北大核心 2011年第4期87-90,共4页 Measurement & Control Technology
基金 自然科学基金资助项目(60872045 60572144) 教育部新世纪优秀人才支持计划(CET-06-0876) 西北工业大学基础研究基金资助项目(W018105) 西北工业大学科技创新基金资助项目(2008KJ01005) 航空科学基金资助项目(20095553026)
关键词 无线网络 隐藏终端 IEEE 802.11a 物理层建模 干扰特性 wireless network hidden terminal IEEE 802.11a physical layer modeling interference characteristics
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9

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同被引文献25

  • 1饶国威,杜明辉,万泉.无线局域网中移动隐藏终端的自适应算法[J].计算机工程,2007,33(4):105-107. 被引量：4
  • 2陈林星，曾懿，曹毅．移动AdHoc网络[M]．北京：电子工业出版社，2006：4-10．
  • 3Pathak P H, Utta R. A Survey of Network Design Problems and Joint Design Approaches in Wireless Mesh Networks[J]. IEEE Communications Surveys & Tutorials, 2011, 13(3): 396- 428.
  • 4Kolar V, Razak S, Mahonen P, et al. Measurement and Analysis of Link Quality in Wireless Networks: An Application Perspective[C]//Proceedings of INFOCOM IEEE Conference on Computer Communications. San Diego, USA: IEEE Press, 2010: 1-6.
  • 5Alasmary W, Zhuang Weihua. Mobility Impact in IEEE 802.1lp Infrastructureless Vehicular Networks[J]. Ad Hoc Networks, 2012, 10(2): 222-230.
  • 6Bychkovsky V, Hull B, Miu A, et al. A Measurement Study of Vehicular Internet Access Using in Situ Wi-fi Networks[C]// Proceedings of the 12th ACM MOBICOM Conference. Los Angeles, USA: ACM Press, 2006: 50-61.
  • 7Kim S, Verma L, Choi S, et al. Collision-aware Rate Adap- tation in Multi-rate WLANs: Design and Implementation[J]. Computer Networks, 2010, 54(17): 3011-3030.
  • 8Khan M, Veitch D. Isolating Physical Per for Smart Rate Selection in 802.11 [C]//Proceedings of INFOCOM'09. IS. 1.]: IEEE Press, 2009: 1080-1088.
  • 9Rayanchu S, Mishra A, Agrawal D, et al. Diagnosing wireless Packet Losses in 802.11: Separating Collision from Weak Signal[C]//Proceedings of INFOCOM'08. [S. 1.]: IEEE Press, 2008: 735-743.
  • 10Forestier S, Bouysse P, Quere R, et al. Joint Optimization of the Power-added Efficiency and the Error-vector Measurement of 20-GHz pHEMT Amplifier Through a New Dynamic Bias-control Method[J]. IEEE Transactions on Microwave Theory Technology, 2004, 52(4): 1132-1141.

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测控技术
2011年 第4期

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