Organizing Context Information Processing in Dynamic Wireless Sensor Networks
Clemens Lombriser,Mihai Marin-Perianu,Raluca Marin-Perianu,Daniel Roggen,Paul J.M. Havinga,Gerhard Tröster +5 more
- 01 Dec 2007
- pp 67-72
TL;DR: The e-SENSE middleware architecture for distributed processing of context information in dynamic wireless sensor networks is presented, where the functionality of the sensor network is expressed using service task graphs supporting distributed execution of applications.
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Abstract: This paper presents the e-SENSE middleware architecture for distributed processing of context information in dynamic wireless sensor networks At the lower layer, sensor nodes organize into clusters spontaneously based on shared context These clusters form the basis for the service-oriented processing layer, where the functionality of the sensor network is expressed using service task graphs supporting distributed execution of applications The higher layer is responsible for complex context inference and recognition As a concrete example we evaluate the distributed recognition of human activities in a car assembly process
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Figures
Fig. 2: Cluster stability depending on the probabilityp of correct detection of commoncontext and the probabilityq of correct detection ofdifferent contexts. 
TABLE 1: THE COMPLEX ACTIVITY “M OUNT THE FRONT DOOR” CONSISTS OF7 BASIC OPERATIONS SENSED BY DIFFERENT DETECTOR NODES (PLACED AS INDICATED IN THE RIGHT COLUMN) 
Fig. 1: e-SENSE protocol stack architecture with gateway extensions. 
Fig. 3: Titan configures an application task graph by assigning parts of the graph to participating sensor nodes depending on their processing capabilities
Citations
Wireless Sensor Networks in Motion - Clustering Algorithms for Service Discovery and Provisioning
Raluca Sandra Marin-Perianu
- 06 Nov 2008
TL;DR: This thesis proposes a set of algorithms that enable WSNs to self-organize efficiently in the presence of mobility, adapt to and even exploit dynamics to increase the functionality of the network.
•Journal Article
Tandem: A Context-Aware Method for Spontaneous Clustering of Dynamic Wireless Sensor Nodes
TL;DR: In this paper, the authors propose a method through which wireless sensor nodes organize spontaneously into clusters based on a common context, taking into account a window-based history of believes, and approximate the behavior of the algorithm using a Markov chain model and analyse theoretically the cluster stability.
22
On Performance of Logical-Clustering of Flow-Sensors
Rahim Rahmani,Hasibur Rahman,Theo Kanter +2 more
- 01 Jan 2014
TL;DR: In this paper, the authors investigated the network performance of logical clustering based on ns-3 simulations and investigated reliability, scalability, and reachability in terms of delay, jitter, and packet loss for the logically clustered network.
•Posted Content
On Performance of Logical-Clustering Of Flow-Sensors
TL;DR: This paper investigates the network performance of logical-clustering based on ns-3 simulations and investigates reliability, scalability, and reachability in terms of delay, jitter, and packet loss for the logically clustered network.
A unified wireless sensor network framework
Joshua Kiepert,Sin Ming Loo +1 more
- 19 Mar 2012
TL;DR: The traditional approaches to WSN system design are outlined, and the necessary components of a unified WSN framework that would support the majority of present applications as well as providing the foundation for further advancements in the field are proposed.
References
DFuse: a framework for distributed data fusion
Rajnish Kumar,Matthew Wolenetz,Bikash Agarwalla,Junsuk Shin,Phillip Hutto,Arnab Paul,Umakishore Ramachandran +6 more
- 05 Nov 2003
TL;DR: The DFuse architectural framework, DFuse, consists of a data fusion API and a distributed algorithm for energy-aware role assignment that enables an application to be specified as a coarse-grained dataflow graph, and eases application development and deployment.
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"Are you with me?" - Using accelerometers to determine if two devices are carried by the same person
Jonathan Lester,Blake Hannaford,Gaetano Borriello +2 more
- 01 Jan 2004
TL;DR: A method to determine if two devices are carried by the same person, by analyzing walking data recorded by low-cost MEMS accelerometers using the coherence function, a measure of linear correlation in the frequency domain, is presented.
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The Abstract Task Graph: a methodology for architecture-independent programming of networked sensor systems
Amol Bakshi,Viktor K. Prasanna,James E. Reich,Daniel L. Larner +3 more
- 05 Jun 2005
TL;DR: This paper primarily deals with the key concepts of ATaG and the program syntax and semantics and the end-to-end application development methodology is discussed briefly.
Titan: A Tiny Task Network for Dynamically Reconfigurable Heterogeneous Sensor Networks
Clemens Lombriser,Daniel Roggen,Mathias Stäger,Gerhard Tröster +3 more
- 01 Jan 2007
TL;DR: Context recognition, such as gesture or activity recognition, is a key mechanism that enables ubiquitous computing systems to proactively support users and becomes challenging in unconstrained environments such as those encountered in daily living, where it has to deal with heterogeneous networks.
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