This article presents Agilla, a mobile agent middleware designed to support self-adaptive applications in wireless sensor networks. Agilla provides a programming model in which applications consist of evolving communities of agents that share a wireless ...

Many applications operate in heterogeneous wireless sensor networks, which represent a challenging programming environment due to the wide range of device capabilities. Servilla addresses this difficulty in developing applications by offering a new middleware ...

This paper focuses on the information gathering support needs for enterprises that operate over wireless mobile ad hoc networks. While queries are a convenient way to obtain information, the highly dynamic nature of such networks makes it difficult to ...

Context-aware computing is characterized by software's ability to continuously adapt its behavior to an environment over which it has little control. This style of interaction is imperative in ad hoc mobile networks that consist of numerous mobile hosts ...

Many location based services, such as a those used in healthcare facilities to track medical personnel and equipment, need to keep track of mobile entities across wide areas. These services can be realized in a cost-effective and efficient manner using ...

Recent years have seen the emergence of wireless sensor network systems that must support high data rate and real- time queries of physical environments. This paper proposes Real-Time Query Scheduling (RTQS), a novel approach to conflict-free transmission ...

Queries are convenient abstractions for the discovery of information and services, as they offer content-based information access. In distributed settings, query semantics are well-defined, e.g., they often satisfy ACID transactional properties. In a ...

Wireless sensor networks can potentially become larger, more prevalent, and interconnected via the Internet, forming a global sensing infrastructure that serves many users. In order to realize this and maximize its utility, it is necessary to develop ...

Context-aware computing refers to a paradigm in which applications sense aspects of the environment and use this information to adjust their behavior in response to changing circumstances. In this paper, we present a formal model and notation (Context ...