CT - ISG: ROME: Robust Measurement in Sensor Networks

无论传感器是仅用于观察还是用作实际响应的基础，当重要决策基于这些数据时，传感器数据的可信性就变得至关重要。与传统的联网系统不同，传感器网络还测量物理现象。传统的信息保证侧重于数据的完整性，并不涵盖在感知数据时可能出现的所有错误来源。事实上，传感器数据可能会在环境层面遭到破坏，无论是通过自然丢失校准，还是通过对手故意扰乱测量环境。这些影响测量过程(POM)的误差源是传感器网络所特有的，不能通过通常的以网络为中心的方法来解决。因此，为了补充传统的信息保障服务，需要防御机制来保护传感器网络免受POM错误的影响。只有当信任包装器包围传感器测量时，应用程序才应该做出决策或采取具有重要影响的行动。建议的研究包括两个方面：腐败研究和保障研究。对于前者，该团队将通过编目各种不同传感器可能引入的POM错误集来进行彻底的威胁分析。对于后者，该团队将通过开发一套测量保证工具来增强传感器网络的现有编程堆栈。开发使传感器网络对POM错误具有天然免疫力的方法，将使传感器应用程序有更大的成功机会和更广泛的使用。

Regardless of whether sensors are used just for observations or as the basis for actual responses, the trustworthiness of sensor data becomes critical when important decisions are based upon these data. Unlike traditional networked systems, sensor networks also take measurements of physical phenomena. Traditional information assurance, which focuses on the integrity of data, does not cover all of the sources of errors that might arise in sensing data. In fact, sensor data can be corrupted at the environmental level, whether through a natural loss of calibration or through a deliberate perturbation of the measurement environment by an adversary. These sources of errors, which affect the process of measurement (PoM), are unique to sensor networks and cannot be addressed through the usual network-centric methods. Hence, to complement traditional information assurance services, defense mechanisms are needed to protect the sensor network from PoM errors. Only when a trust wrapper surrounds sensor measurements should applications make decisions or take actions with important implications. The proposed research consists of two aspects: corruption research and assurance research. For the former, the team will conduct a thorough threat analysis by cataloging the set of PoM errors that may be introduced for a variety of different sensors. For the latter, the team will augment the existing programming stack for sensor networks by developing a suite of measurement assurance tools. Developing methods that give sensor networks a natural immunity to PoM errors will allow sensor applications to have a greater chance for success and wider spread use.