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Dynamic Network Control to Prevent System Failures in Multi-hop Wireless Networks

防止多跳无线网络中系统故障的动态网络控制

基本信息

批准号：
16206039
负责人：
SENGOKU Masakazu
金额：
$ 29.62万
依托单位：
Niigata University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2007
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16206039/
关键词：
Multi-hop wireless networks Ad hoc networks Mobile communications Fault tolerance Network control Reliability Network failures Optimization 移動通信

项目摘要

In multi-hop wireless networks, the network is not guaranteed to be connected, and the topology of the network changes with time because positions of nodes often change and some nodes leave the network because of mobility of nodes. Due to such change of the topology, performance of the network is sometimes degraded. Furthermore, if the network consists of general terminals, malicious nodes may enter the network and attack the network intentionally. As a result, the network may fail to function properly. Because recent network systems have to provide sufficient reliability as well as broadband environments, we have to overcome such problems which cause system failures. With these things as background, the purpose of this project is to develop network control methods to overcome such problems and improve reliability of multi-hop wireless networks. The following are the results: We showed that effects of failure of terminals due to computer viruses on performance of wireless multi-hop networks, and proposed some methods to prevent spread of viruses in the network. Also, we proposed topology control methods with relaying stations to improve reliability, and evaluated the proposed methods. Also, we proposed charging rewarding methods for load balancing and evaluated the proposed methods. Furthermore, we developed and evaluated some optimization methods and protocols to improve reliability.

在多跳无线网络中，不能保证网络是连通的，并且网络的拓扑随着时间而变化，因为节点的位置经常变化，并且一些节点由于节点的移动性而离开网络。由于拓扑的这种变化，网络的性能有时会降低。此外，如果网络由一般终端组成，恶意节点可能会进入网络并故意攻击网络。因此，网络可能无法正常运行。由于最近的网络系统必须提供足够的可靠性以及宽带环境，我们必须克服这些问题，导致系统故障。本计画的目的就是在此背景下，发展网路控制的方法，以克服这些问题，并提高多跳无线网路的可靠性。结果如下：分析了计算机病毒引起的终端失效对无线多跳网络性能的影响，并提出了一些防止病毒在网络中传播的方法。此外，我们提出了拓扑控制方法与中继站，以提高可靠性，并评估所提出的方法。此外，我们提出了充电奖励方法的负载均衡和评估所提出的方法。此外，我们开发和评估了一些优化方法和协议，以提高可靠性。