Integrated Sensing: Network Support for Distributed Sensing Applications

集成传感：分布式传感应用的网络支持

• 批准号: 0225448
• 负责人: Gustavo de Veciana
• 金额: $ 15万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-10-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0225448&HistoricalAwards=false
• 关键词: Integrated; Sensing; Network; Support; Distributed

At the core of the next generation of networking applications and technologies lies the potential of embedding sensing and actuating capabilities in the network so as to support a variety of monitoring and controls applications. In this proposal we target applications that require stringent quality of service guarantees, e.g., applications needing global snapshot(s) of the state of a physical attribute,or requiring correlating various such attributes. For example, one might jointly track the wind speed and the density of a given pathogen to create evolution models. To support such applications while achieving high sensor utilization we propose to investigate two complementary problems:(1) What are fundamental characteristics and requirements ofestimation and control applicationsdrawing spatio-temporal data from networked sensors; and(2) What types of network support, e.g., sensing `primitives' and resource/traffic management mechanisms will be critical to enable wide-spread shared usage of such networks.Due to the expected heterogeneity of sensor networksand possible mismatch between a sensor's `capacity' to processqueries and the network bandwidth delay product,achieving timely coordinated responses from a potentially largeset of sensors shared by multiple users may be difficult.This is exacerbated by the inherent asymmetry of communications associated with such sensing activities, i.e., one-to-many queries resulting in many-to-one sensor responses. As a result one can expect unpredictable bursts of traffic, network hot spots, and degradation in performance. As part of the proposed researchwe will investigate these problems from the perspective ofthe applications, the network and the sensors.

下一代网络应用和技术的核心是在网络中嵌入感知和执行功能，从而支持各种监控应用。在该建议中，我们针对需要严格服务质量保证的应用，例如，需要物理属性状态的全局快照(S)的应用，或者需要关联各种这样的属性的应用。例如，人们可以联合跟踪给定病原体的风速和密度，以创建进化模型。为了在支持这些应用的同时获得高的传感器利用率，我们建议研究两个互补的问题：(1)从网络化传感器中提取时空数据的估计和控制应用的基本特征和要求是什么；以及(2)哪种类型的网络支持，例如，感知原语和资源/通信量管理机制将是实现这种网络的广泛共享使用的关键。由于传感器网络预期的异构性，以及传感器处理查询的能力和网络带宽延迟乘积之间可能不匹配，可能很难从由多个用户共享的潜在大量传感器获得及时协调的响应。与此类检测活动相关的通信的固有不对称性加剧了这一问题，即一对多查询导致多对一传感器响应。因此，可能会出现不可预测的流量突发、网络热点和性能下降。作为拟议研究的一部分，我们将从应用、网络和传感器的角度来研究这些问题。