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On multihop wireless network management: Measurement, modeling and control.

机译:关于多跳无线网络管理:测量,建模和控制。

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摘要

Multihop wireless networks are becoming a new attractive communication paradigm owing to their low cost and ease of deployment. Managing multihop wireless networks, however, is especially challenging due to a fluctuating wireless medium, presence of wireless interference, and the increasing demand for them to scale to large sizes.;This dissertation tackles the multihop wireless network management challenges by systematically integrating measurement, modeling and control. On the measurement and modeling side, this dissertation develops a novel probabilistic region-based localization algorithm to accurately determine node locations with limited and noisy measurement information. The dissertation further develops a general model of wireless interference to estimate throughput and goodput between arbitrary pairs of nodes in the presence of interference from other nodes in a wireless network. Our model advances state of the art in interference modeling by (i) estimating interference among an arbitrary number of senders, (ii) modeling unicast transmissions, and (iii) modeling the general case of heterogeneous nodes with different traffic demands. On the control side, we investigated one of the most important network control problems---design of routing protocols for large wireless networks. We developed a new routing protocol, Small State and Small Stretch (S4) to jointly minimize routing state and routing stretch. S4 uses a combination of beacon distance-vector based global routing state and scoped distance-vector based local routing state to achieve a worst-case stretch of 3 using O( N ) routing state per node in an N-node network. Its performance benefits are further demonstrated in extensive simulation and testbed experiments.
机译:由于多跳无线网络的低成本和易于部署,它们正成为一种新的有吸引力的通信范例。然而,由于无线介质的波动,无线干扰的存在以及对它们扩展到大尺寸的需求不断增加,管理多跳无线网络尤其具有挑战性。本论文通过系统地集成测量,建模来解决多跳无线网络管理的挑战。和控制。在测量和建模方面,本文开发了一种新颖的基于概率区域的定位算法,可以准确地确定节点信息的位置,该信息具有有限且嘈杂的测量信息。论文进一步发展了无线干扰的通用模型,以估计在无线网络中其他节点存在干扰的情况下,任意节点对之间的吞吐量和吞吐量。我们的模型通过(i)估计任意数量的发送者之间的干扰,(ii)建模单播传输,以及(iii)建模具有不同流量需求的异构节点的一般情况,从而提高了干扰建模的最新水平。在控制方面,我们研究了最重要的网络控制问题之一-大型无线网络的路由协议设计。我们开发了一种新的路由协议“小状态和小扩展(S4)”,以共同最小化路由状态和路由扩展。 S4使用基于信标距离矢量的全局路由状态和基于范围距离矢量的局部路由状态的组合,以在N节点网络中每个节点使用O(N)路由状态来实现最坏情况下的3扩展。在广泛的仿真和试验台实验中进一步证明了其性能优势。

著录项

  • 作者

    Wang, Feng.;

  • 作者单位

    The University of Texas at Austin.;

  • 授予单位 The University of Texas at Austin.;
  • 学科 Computer Science.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 187 p.
  • 总页数 187
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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