PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
We investigate the theoretical limits of positioning algorithms. In particular, we study scenarios where the nodes do not receive anchors directly (multi-hop) and where no physica...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
One way to improve inferences on sensor data is to tune the algorithms through a time-consuming offline procedure. A less expensive, and potentially more accurate method is to use...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
This paper introduces and solves a security problem of pervasive computing: how to define authorizations for offline interactions when trust relationships among entities do not ex...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
Applications in the Pervasive Computing domain are challenged by the dynamism in which their execution environment changes, e.g. due to user mobility. As a result, applications ha...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
Ubiquitous computing environments accrete slowly over time rather than springing into existence all at once. Mechanisms are needed for incremental integration-the problem of how t...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
In this paper we investigate the performance of IEEE 802.11b ad hoc networks by means of an experimental study. This analysis reveals several aspects that are usually neglected in...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
Networks of small devices, such as environmental sensors, introduce a number of new challenges for traditional protocols and approaches. In particular, the extreme resource constr...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
Interworking heterogeneous wireless access technologies is an important step towards building the next generation, all-IP wireless access infrastructure. In this paper, we present...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
People are an important part of many business processes. Current workflow-based implementations of business processes constrain users to the desktop environment; require them to p...
PERCOM
2004
ACM
14 years 4 months ago
2004
ACM
We present the Cooperative Location-sensing system (CLS), an adaptive location-sensing system that enables devices to estimate their position in a self-organizing manner without t...