Implementation of Active Mobile Sensing Networks

在这项研究中，我们研究了移动传感网络，使我们能够利用异类传感数据开发各种应用。我们主要关注实现移动感知网络的4个问题，1)环境感知，2)有效通信，3)自适应组网，4)感知应用。作为一种环境感知，我们研究了在相互补充的网络环境中提高到达率的通信方法。这些方法通过PLC(电力线通信)和ZigBee相互补充，提高了可靠性，这些地方的节点不能通过一个接口进行通信。作为一种有效的通信手段，我们提出了一种基于元数据的分簇无线传感器网络数据聚合方案。在我们的方案中，通过元数据协商，在簇头事件的感知范围内只有一个传感器节点。仿真结果表明，采用本文提出的数据聚合方案的分簇协议在…中是有效的更能延长网络生命周期，支持可扩展的数据聚合。作为一种自适应组网，我们提出了一种远程即插即用的方式，移动终端可以远程使用设备来实现网络透明。我们开发了原型软件，并确认如果有足够的带宽和低延迟的环境，远程即插即用可以达到100ms。作为传感应用，我们认为通过估计节点位置来获得节点定位是应用中的一项基本技术。我们提出了一种基于链路状态路由的优化定位方案，该方案满足以下关键设计要求：(1)独立于锚节点；(2)对非凸拓扑结构具有健壮性；(3)与网络协议兼容。我们揭示了MPR(多点中继)选择和最远2跳节点选择的特点，并发现这些节点选择如何有助于在没有测距设备的定位方案中降低距离误差。我们认为，通过开发形成覆盖网络的网关，每个研究成果都可以汇聚为一个移动感知网络。虽然我们不能在这段时间内开发出这样的网关，但我们相信每一项研究成果都会促进这一领域基础技术的发展。较少

In this research, we studied mobile sensing networks that enabled us to develop various applications by using heterogeneous sensing data. We mainly focused on 4 issues to achieve the mobile sensing network, 1) an environmental sensing, 2) an effective communication, 3) an adaptive networking, 4) sensing applications. As an environmental sensing, we examined communication methods that increase the arrival rate in a mutual complementary network environment. These methods improve reliability by mutually complementing, through PLC (Power Line Communication) and ZigBee, the places where nodes can't communicate through only one interface. As an effective communication, we proposed a meta-data-based data aggregation scheme in clustering wireless sensor networks. In our scheme, only one of the sensor nodes within the sensing range of an event in a cluster head via the meta-data negotiation. The simulation results showed that the cluster protocol with our data aggregation scheme is effective in … More prolonging the network lifetime and supporting scalable data aggregation. As an adaptive networking, we proposed a remote Plug and Play where mobile terminals can remotely use devices for network-transparency. We developed prototype software and confirmed that remote Plug and Play was 100ms if it had an environment with enough band width and low latency. As sensing applications, we thought node localization obtained by estimating node positions is an essential technique for applications. We presented an optimized link state routing-based localization that satisfies the following key design requirements: (i) Independency from anchor nodes, (ii) Robustness for non-convex network topology, and (iii) Compatibility with network protocol. We revealed characteristics of MPR (multipoint relay) selection and the farthest 2-hop node selection, and found how these node selections contribute to reducing the distance error for a localization scheme without ranging devices. We think each research result can be converged as a mobile sensing network by developing gateways that form an overlay network. Although we couldn't develop such gateways within this research period, we believe each research result promotes the development of basic technologies in this area. Less