The health sector is a central domain in every economy. It is challenged by progressing costs and funding issues. Hospitals play a major role for the examination and treatment of patients. The sequence how patients are assigned to hospital units determines the quality of treatment, the resource utilization, as well as the patients’ overall treatment time. Thus, efficient scheduling of patients ...

This paper presents a token-based accounting scheme for decentralized autonomous systems, such as peer-to-peer systems. The scheme uses tokens as proof of resource usage or service usage. Conforming to the peer-to-peer paradigm, the tokens are issued using a decentralized mechanism. Within peer-to-peer the proposed accounting scheme can be used to cope with the shortage of information. Therewit...

Mutual data sharing is provided in distributed file sharing environment. Information brokering systems (IBSs) are used to connect large-scale loosely federated data sources via a brokering overlay. Information brokers redirect the client queries to the requested data servers. Privacy preserving methods are used to protect the data location and data consumer. Brokers are trusted to adopt server-...

We describe a decentralized, adaptive mechanism for replica location in wide-area distributed systems. Unlike traditional, hierarchical (e.g, DNS) and more recent (e.g., CAN, Chord, Gnutella) distributed search and indexing schemes, nodes in our location mechanism do not route queries, instead, they organize into an overlay network and distribute location information. We contend that this appro...

For a complex distributed system to be dependable, it must be continuously monitored, so that its failures and imperfections can be discovered and corrected in a timely manner. This work is concerned with the monitoring of large, open and heterogeneous applications. Our objective is a monitoring technique that satisfies the following properties: scalability with respect to the size of the syste...

Traditional optimization models assume a central decision maker who optimizes a global system performance measure. However, problem data is often distributed among several agents, and agents take autonomous decisions. This gives incentives for strategic behavior of agents, possibly leading to sub-optimal system performance. Furthermore, in dynamic environments, machines are locally dispersed an...

Horizontal mechanisms are structural overlays (such as roles and groups) and non-structural devices (such as physical co-location) that are designed to facilitate cross-unit collaboration. The objective of this study is to increase our cumulative knowledge about what top-down mechanisms are being used to promote the coordination of IS activities across corporate/division boundaries. Proposition...

Clustering technology is very important in ad hoc networks and sensor networks from the view point of reducing the traffic load and energy consumption. In this paper, we propose a new structure formation mechanism as a tool for clustering. It meets the key clustering requirements including the use of an autonomous decentralized algorithm and a consideration of the situation of individual nodes....

With many advances in sensor technology and the Internet of Things, Vehicle Ad Hoc Network (VANET) is becoming a new generation. VANET’s current technical challenges are deploying decentralized architecture protecting privacy. Because Blockchain features decentralized, distributed, mass storage, non-manipulation features, this paper designs using called Blockchain-based VANET. VANET can effecti...