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首页> 外文学位 >Geograms vs. geocircuits: Analysis of location based routing strategies for wireless ad hoc networks.
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Geograms vs. geocircuits: Analysis of location based routing strategies for wireless ad hoc networks.

机译：地理与地理电路：无线自组织网络基于位置的路由策略分析。

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摘要

Location aided routing is a promising approach adopted to reduce the overhead of routing in ad hoc networks, by employing distributed forwarding decisions exploiting restricted location information. Unfortunately, it suffers from increased overhead during the process of local optimum recovery. We introduce a novel routing paradigm, geocircuit routing, that aims to reduce the overhead induced by local optimum recovery in location aided routing. This scheme exploits already discovered paths in routing succeeding packets, in realistic, bursty traffic scenarios and in this manner detours re-implementation of the expensive local optimum recovery. We address the problem of routing information becoming stale due to network mobility. The performance of geocircuit routing is compared to that of conventional location based routing, addressed as geogram routing, via simulation. The simulation model is designed to be unbiased, so that objective conclusions concerning the two paradigms as general approaches may be derived. Geocircuit routing is established to succeed in substantially reducing the overhead of local optimum recovery, while maintaining high performance, in a wide range of ad hoc environment conditions. It is demonstrated to exhibit superior scalability in scenarios where limiting network parameters are increased.
机译：位置辅助路由是一种有前途的方法，可通过采用利用受限位置信息的分布式转发决策来减少ad hoc网络中路由的开销。不幸的是，它在局部最佳恢复过程中遭受了增加的开销。我们介绍了一种新颖的路由范式 geocircuit 路由，旨在减少位置辅助路由中的局部最优恢复所引起的开销。该方案在现实的突发流量场景中利用了在路由后续数据包时已经发现的路径，并以此方式绕开了昂贵的本地最佳恢复的重新实现。我们解决了由于网络移动性导致路由信息变得陈旧的问题。通过仿真，将地理电路路由的性能与传统的基于位置的路由（称为 geogram 路由）的性能进行了比较。仿真模型被设计为无偏差的，因此可以得出关于这两种范式作为一般方法的客观结论。建立 Geocircuit 路由的目的是在各种临时环境条件下成功地大幅减少局部最佳恢复的开销，同时保持高性能。它被证明在限制网络参数增加的情况下展现出卓越的可扩展性。

著录项

  • 作者

    Fotopoulou-Prigipa, Sophia.;

  • 作者单位

    Northeastern University.;

  • 授予单位 Northeastern University.;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.S.
  • 年度 2003
  • 页码 240 p.
  • 总页数 240
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 无线电电子学、电信技术;
  • 关键词

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