PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
—Contexts, the pieces of information that capture the characteristics of computing environments, are often inconsistent in the dynamic and uncertain pervasive computing environme...
PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
—Earlier sensor network MAC protocols focus on energy conservation in low-duty cycle applications, while some recent applications involve real-time high-data-rate signals. This m...
PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
—This paper addresses the problem of providing congestion-management for a shared wireless sensor networkbased target tracking system. In many large-scale wireless sensor network...
PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
Abstract—In this paper, we consider privacy challenges in eventdriven pervasive spaces where multimedia streams captured by sensors embedded in the infrastructure are used to det...
PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
To benefit from a location-based service, a person must reveal her location to the service. However, knowing the person’s location might allow the service to re-identify the pe...
PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
—Ensuring spontaneous ad hoc interoperation in decentralized ubiquitous computing environments is challenging, because of heterogeneous resources and divergent policies. Centrali...
PERCOM
2009
ACM
14 years 6 months ago
2009
ACM
Abstract—We present a lightweight lossless compression algorithm for realtime sensor networks. Our proposed Adaptive Linear Filtering Compression (ALFC) algorithm performs predic...
PERCOM
2009
ACM
15 years 2 days ago
2009
ACM
Channel asymmetry and high fluctuation of channel conditions are two salient characteristics of wireless channels in mobile environments. Therefore, when using IEEE 802.11 devices ...
PERCOM
2009
ACM
15 years 2 days ago
2009
ACM
Abstract--We propose an extension to the event-based programming model for sensor-driven ubiquitous computing applications. The extension consists of three abstractions: MultiEvent...
PERCOM
2009
ACM
15 years 2 days ago
2009
ACM
In this paper we describe a simple, cheap, and unobtrusive demo system that can track multiple persons with low-frequency electric fields. The system's operation is based on m...