ITR/SI: On Robust and Secure Mobile Ad Hoc and Sensor Networks

ITR/SI：论稳健且安全的移动自组网和传感器网络

• 批准号: 0113361
• 负责人: Dharma Agrawal
• 金额: --
• 依托单位: University of Cincinnati Main Campus
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-09-01 至 2005-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0113361&HistoricalAwards=false
• 关键词: ITR; SI; Robust; Secure; Mobile

A Mobile Ad hoc NETwork (MANET) is a collection of mobile autonomous system of nodes connectedby wireless links with multi-hop communication and no underlying infrastructure. Research in the field ofMANET is receiving unprecedented attention due to their profound impact on human life. The mostimportant problems in MANET are Routing, Quality of Service, Security, Power management and Trafficand Mobility modeling and we plan to address many of these issues.In a MANET, when a mobile node has a packet to send, it first consults its route cache to determinewhether it already has a route to destination, else it initiates route discovery by broadcasting. Once a routeis established, its continuation and maintenance is of prime concern for efficient communication. A routecould be broken by mobility and is determined by route error packets. Rather than employing aconventional way of global re-flooding for a new route search, we address this by Local Route Repair(LLR) approach and achieve re-connectivity with minimum overhead. Further work is needed to extendour scheme by increasing the length of patch-up part. We expect this to yield a higher amount of savingsin terms of routing overhead and delay when unidirectional links are present. We also plan to define ananalytical framework for different protocols and determine their performance.The need for scheduling in a MANET arises primarily due to limited availability of resources. We plan tostudy the impact of packet level scheduling strategies that transmit packets based on a metric derivedfrom characteristics of the data being transmitted, like the length of the packets or the length of the routebeing traversed by the packets or even the priority of the packets. We plan to test other routing schemesand define and formulate an analytical model for packet queue at each node so that we could determineend-to-end delay of different types of packets.Effective operation of MANETs is dependent on maintaining appropriate routing information in adistributed fashion. Confidentiality of routing information is important so that not only the payload databut also the routing message headers carrying, the location information of the mobile nodes can beexchanged securely. We have defined an authentication scheme that can prevent the external attacks. Weminimize substantial overhead by performing mutual authentication using challenge-response mechanismalong the reply path only when the route reply is received. We plan to propose a distributed intrusiondetection system to handle them. We will build these systems based on traffic profiles that we wouldobtain after extensive study of the traffic patterns. We are planning to perform a detailed simulation toobtain metrics that would help us in differentiating valid and malicious data.Wireless sensor networks can be easily deployed without any installation costs or pre-plannedorganization. To increase fault tolerance, thousands of these sensors might be employed. The traditionalrouting protocols defined for wireless ad hoc network do not scale well for sensor networks as they aredata centric and application-specific unlike traditional networks. Most protocols for sensor networkcollect data periodically from environment. We feel that there exists a need for networks geared towardsresponding immediately to changes in the sensed attributes. Very recently, we have proposed a protocolcalled TEEN for such networks. We are also looking at ways to combine the best features of bothproactive and reactive protocols to form a hybrid network. We also believe that sensor networks shouldprovide the end user with the ability to control the three-way trade-off between energy efficiency,accuracy and response time dynamically. In brief, the proposal research will have a long-term impact onthe robustness and security of MANETs and sensor networks.

移动的Ad hoc网络（MANET）是一个由多个节点组成的移动的自治系统，这些节点通过无线链路进行多跳通信，没有底层基础设施。由于移动自组网对人类生活的深远影响，移动自组网领域的研究正受到前所未有的重视.在MANET中，当一个移动的节点有一个数据包要发送时，它首先查询它的路由缓存，以确定它是否已经有一个到目的地的路由，否则它通过广播发起路由发现。一旦建立了一条路线，它的延续和维护是有效通信的首要问题。一个路由可能被移动性破坏，并由路由错误包决定。而不是采用传统的全局重新洪泛的方式进行新的路由搜索，我们解决了这个问题的本地路由修复（LLR）的方法，并实现重新连接，以最小的开销。需要进一步的工作来扩展我们的方案，通过增加修补部分的长度。我们希望这将产生一个更高的金额savingin路由开销和延迟时，单向链路存在。我们还计划为不同的协议定义一个分析框架，并确定其performance.The需要在MANET调度主要是由于有限的可用资源。我们计划研究分组级调度策略的影响，该策略基于来自被传输数据的特性的度量来传输分组，如分组的长度或分组所遍历的路由的长度，甚至分组的优先级。我们计划测试其他的路由方案，并定义和制定一个分析模型，在每个节点上的分组队列，使我们可以确定不同类型的packet. Mannecessary的有效操作端到端的延迟依赖于维护适当的路由信息在一个分布式的方式。路由信息的保密性是很重要的，这样不仅有效载荷数据，而且路由消息头携带的移动的节点的位置信息可以安全地交换。我们已经定义了一个认证方案，可以防止外部攻击。我们通过在收到路由应答时才沿应答路径使用挑战-应答机制执行相互认证，最大限度地减少了大量开销。我们计划提出一个分布式入侵检测系统来处理它们。我们将建立这些系统的基础上交通概况，我们wouldotain经过广泛的研究交通模式。我们正计划进行详细的模拟，以获得指标，这将有助于我们区分有效和恶意的数据。无线传感器网络可以很容易地部署，没有任何安装成本或预先规划的组织。为了提高容错能力，可能会使用数千个这样的传感器。传统的无线自组织网络路由协议不适用于传感器网络，因为传感器网络不同于传统网络，具有数据中心和特定应用的特点.大多数传感器网络协议都是周期性地从环境中采集数据。我们认为，存在着一种需要，即对感知属性的变化立即做出反应的网络。最近，我们提出了一个协议，称为TEEN这样的网络。我们也在寻找方法来结合联合收割机两者的最佳功能主动和反应协议，形成一个混合网络。我们还认为，传感器网络应该为最终用户提供动态控制能源效率，准确性和响应时间之间的三方权衡的能力。总之，该方案的研究将对移动自组网和传感器网络的鲁棒性和安全性产生长远的影响.