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首页> 外文学位 >Design, implementation and testing of communication protocols in wireless sensor networks with a single relay node.
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Design, implementation and testing of communication protocols in wireless sensor networks with a single relay node.

机译：具有单个中继节点的无线传感器网络中通信协议的设计，实现和测试。

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摘要

Wireless sensor network (WSN) consists of a group of sensors or nodes, linked by a wireless medium to perform distributed sensing tasks. The highly variable nature of wireless communication poses major challenges for implementing a reliable WSN. WSNs are gaining in popularity to collect data in the physical world for different purposes such as military surveillance, habitat monitoring and medical applications.;The objective of our work is to design and implement a collaborative and distributed networking protocol for data dissemination in WSNs with relay nodes and network coding. In particular, software components are being implemented within the TinyOS operating system to provide a flexible software platform and scalable performance using Crossbow off-the shelf WSN nodes. The challenge in our protocol implementation is the fact that wireless sensors are resource constrained, where the usage of energy and memory must be done wisely to increase the lifetime of nodes. In addition, in order to implement network coding, it is expected that non-conventional requirements in the network protocol will be accommodated such as synchronization of nodes, transmission rate control and procedures for termination of data exchanges.;Recently, an innovative way of using network resources has been discovered by introducing network coding. In a traditional WSN, relay nodes receive packets from incoming links and forward them to outgoing links. In network coding, a relay node can modify data and redistribute the results of coding received packets to its outgoing links with the purpose of reducing network energy consumption or improving the packet delivery reliability.
机译：无线传感器网络（WSN）由一组传感器或节点组成，它们通过无线介质链接以执行分布式传感任务。无线通信的高度可变的性质对实现可靠的WSN提出了重大挑战。无线传感器网络越来越受欢迎，可以在物理世界中为军事监视，栖息地监测和医疗应用等不同目的收集数据;我们的工作目标是设计和实现协作和分布式网络协议，以通过中继在无线传感器网络中分发数据节点和网络编码。特别是，软件组件正在TinyOS操作系统内实现，以使用Crossbow现成的WSN节点提供灵活的软件平台和可扩展的性能。在我们的协议实现中，挑战在于无线传感器资源受限的事实，必须明智地使用能量和内存以增加节点的寿命。另外，为了实现网络编码，预期将适应网络协议中的非常规要求，例如节点同步，传输速率控制和终止数据交换的过程。；最近，一种创新的使用方式通过引入网络编码已经发现了网络资源。在传统的WSN中，中继节点从入站链路接收数据包，并将其转发到出站链路。在网络编码中，中继节点可以修改数据并将接收到的数据包的编码结果重新分配到其出站链路，以降低网络能耗或提高数据包传递的可靠性。

著录项

  • 作者

    Khan, Taimoor Ali.;

  • 作者单位

    Dalhousie University (Canada).;

  • 授予单位 Dalhousie University (Canada).;
  • 学科 Engineering Electronics and Electrical.;Computer Science.
  • 学位 M.Eng.
  • 年度 2010
  • 页码 70 p.
  • 总页数 70
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 非洲史;
  • 关键词

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