NeTS-NBD: Adaptive Application-Centered Communication in Mobile and Pervasive Computing

该项目生成通信解决方案，通过紧密集成上下文感知和通信来支持自适应应用程序。具体来说，该项目侧重于提供高效的上下文感知解决方案和自适应应用感知通信。现有上下文感知方法的一个显著缺点是，它们需要额外的网络通信来生成可靠的上下文度量。该项目开发了被动上下文感知，其中使用通信协议已知的信息推断有关环境状态的信息。为了使用这种被动上下文感知来实现自适应应用程序感知通信，该项目将上下文信息与应用程序需求一起合并到通信协议中，以动态改变特定通信协议的行为和随后的有效性。具体来说，该方法动态调整动态路由协议的反应性和主动性，以适应上下文属性的变化。当为适应而收集信息的开销能够保持在最低限度时，从适应中获得的好处可能是巨大的。这个项目正是利用了这个设计要点：将收集上下文信息的开销减少到接近于零，从而使自适应通信协议能够实现的收益最大化。更广泛的影响：这个项目的工作围绕着普适计算，这使得它对学生和公众来说特别容易接触和兴奋。具体的外展活动将不仅包括大学生，还包括当地的中学生和社区成员，通过大学支持的项目。

This project generates communication solutions that support adaptive applications by tightly integrating context-awareness and communication. Specifically, the project focuses on providing efficient context sensing solutions and adaptive application-aware communication. A significant drawback of existing context sensing approaches is that they require additional network communication to generate reliable measures of context. This project develops passive context sensing, in which information about the state of the environment is inferred using information already known to communication protocols. To use this passive context sensing to enable adaptive application-aware communication, the project incorporates context information into communication protocols alongside application requirements to dynamically change the behavior and subsequently the effectiveness of particular communication protocols. Specifically, the approach dynamically adjusts the reactivity and proactivity of a dynamic routing protocol to account for changing context properties. When the overhead of gathering information for adaptation can be kept to a minimum, the benefits received from adaptation can be great. It is exactly this design point that this project exploits: reducing the overhead of collecting context information to near zero maximizes the payoffs adaptive communication protocols can achieve.Broader Impact: The fact that the project's work revolves around pervasive computing makes it especially accessible and exciting to students and the public. Specific outreach activities will include not only university students but local middle and high school students and community members through university supported programs.