AGAPE: a location-aware group membership middleware for pervasive computing environments

Bottazzi, Dario; Corradi, Antonio; Montanari, Rebecca

doi:10.1109/iscc.2003.1214274

Cited by 11 publications

(4 citation statements)

References 13 publications

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“…Traditional membership algorithms assume that devices are connected by reliable networks and that disconnections are rare, and therefore are not designed to support group management in pervasive environments [14]. Indeed, most membership specifications strongly rely on the Consensus operation, which requires not only a majority of correct nodes but also that they remain connected as long as the agreement has not been reached.…”

Section: Group Membership On Pervasive Systemmentioning

confidence: 99%

Strong Consistency for Shared Objects in Pervasive Grids

Steffenel

Kirsch-Pinheiro

2009

2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications

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Recent advances in communication technology enable the emergence of a new generation of applications that integrates mobile devices with classical high performance systems as part of a common computing environment. In such environments, keeping the coherence of shared data (distributed objects, for example) represents a real challenge as communications are strongly influenced by the performance and the reliability of mobile devices (laptops, PDAs and cellular telephones) and wireless networks (WiFi, Bluetooth). Indeed, data incoherence may arise due to message losses or node volatility, which blocks the algorithms used to synchronize these data. In this paper, we analyze the main challenges concerning the manipulation of shared distributed objects in a pervasive environment. We demonstrate how a membership service can be enhanced to tolerate temporary disconnections and message losses without blocking, while reducing the number of exchanged message.

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Section: Group Membership On Pervasive Systemmentioning

confidence: 99%

Strong Consistency for Shared Objects in Pervasive Grids

Steffenel

Kirsch-Pinheiro

2009

2009 IEEE International Conference on Wireless and Mobile Computing, Networking and Communications

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“…In [7] clusters are formed ad hoc to accommodate emergency situations. In [8] the authors have applied their location-aware group membership middleware in an ecare scenario where cluster heads are responsible to send user information to the new groups the user joins while he is on the move. In medical environments, location awareness can help in tracking the nearest specialist to the location of the patient.…”

Section: Mechanismsmentioning

confidence: 99%

Clustering Oriented Architectures in Medical Sensor Environments

Klaoudatou

Konstantinou

Kambourakis

et al. 2008

2008 Third International Conference on Availability, Reliability and Security

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Wireless sensor networks are expected to make a significant contribution in the healthcare sector by enabling continuous patient monitoring. Since medical services and the associated to them information are considered particularly sensitive, the employment of wireless sensors in medical environments poses many security issues and challenges. However, security services and the underlying key management mechanisms cannot be seen separately from the efficiency and scalability requirements. Network clustering used in both routing and group key management mechanisms can improve the efficiency and scalability and therefore can also be envisioned in medical environments. This paper introduces a general framework for cluster-based wireless sensor medical environments on the top of which efficient security mechanisms can rely. We describe two different scenarios for infrastructure and infrastructureless application environments, covering this way a wide area of medical applications (in-hospital and medical emergencies). We also examine the existing group-key management schemes for cluster-based wireless networks and discuss which protocols fit best for each proposed scenario.

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“…However, traditional membership algorithms are not designed to support group management in pervasive environments [1], as they usually assume that devices are connected by reliable networks and that disconnections are rare. To minimize the impact of program-controlled crash on a pervasive environment that is prone to frequent disconnections, we advocate the use a membership in two levels: suspected nodes are initially put into "quarantine", removing them from the token list but not from the group.…”

Section: Failure Handlingmentioning

confidence: 99%

Total order broadcast on pervasive systems

Steffenel

Pinheiro

Bebers

2008

Proceedings of the 2008 ACM Symposium on Applied Computing

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Total Order Broadcast protocols are important tools to ensure coherence across distributed systems. Contrarily to classical distributed systems, pervasive systems bring important constraints related to the performance and reliability of the network and the availability of the devices (laptops, PDAs and cellular telephones). We propose in this paper a self-stabilizing group membership service that helps a token-based Total Order Broadcast protocol to progress in a volatile environment. This group membership service is organized in two hierarchical levels so that unstable nodes are kept in the group without interfering with the Total Order Broadcast protocol. As a result, we avoid expensive membership view changes while keeping the coherence among the nodes.

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AGAPE: a location-aware group membership middleware for pervasive computing environments

Cited by 11 publications

References 13 publications

Strong Consistency for Shared Objects in Pervasive Grids

Strong Consistency for Shared Objects in Pervasive Grids

Clustering Oriented Architectures in Medical Sensor Environments

Total order broadcast on pervasive systems

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