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One of the main challenges of using Linear Wireless Sensor Networks (LSN) is the reliability of the connections among the nodes. Faults in a few contiguous nodes may cause the creation of holes which will result in dividing the network into multiple disconnected segments. As a result, sensor nodes that are located between holes may not be able to deliver their sensed information which negativity affects...
Cloud systems have demonstrated the powerful computation and storage capability in many scientific applications. In this paper, we propose a hierarchical distributed loop self-scheduling scheme to achieve good load balancing by applying weighted self-scheduling scheme on a heterogeneous cloud system. This scheme also considers the distribution of the output data, which can help reduce communication...
Linear Wireless Sensor networks (LSN) are used to monitor long linear critical structures such as pipelines, rivers, railroads, international borders, and high power transmission cables. Due to the importance of these structures, the LSN must be designed with high reliability considerations. However, one of the main challenges of LSN design is the connection reliability among the nodes. Unlike in...
In this paper we present Roller chain, a novel Distributed Hash Table that offers efficient data storage through the combination of gossip-based and structured overlay networks. The unstructured component maintains clusters of fully connected nodes, where each cluster acts as a virtual node in the structured component. This architecture simplifies the management of data replication and balances the...
In this paper, we consider the problem of estimating the distance between any two large data streams in small-space constraint. This problem is of utmost importance in data intensive monitoring applications where input streams are generated rapidly. These streams need to be processed on the fly and accurately to quickly determine any deviance from nominal behavior. We present a new metric, the Sketch...
Dynamic, large social events with concurrent activities, in which participants view, but also provide high-quality content to other visitors, pose one of many challenges to multimedia delivery. Distributing content in such a situation is difficult, and requires strong support from the underlying network, in order to quickly respond to changes in supply and demand. A Flock is a flexible overlay built...
High-quality video, both uncompressed and compressed with relatively low compression ratio, is used in interactive environments, where minimum end-to-end latency is required. The media streams planning solves multi-point data routing for such applications even when bit rate of streams is comparable to capacity of network links. Recent advances in acceleration of high-throughput low-latency video processing...
Streaming video over the Internet has become a popular service that is projected to outstrip demand over most other real-time streaming services. Thus, it is essential to provide scalable server storage and services without which video-on-demand services will not be able to provide good performance in the face of increasing demand. In this paper, we study algorithms, and propose one, for simple partitioning...
MEMS micro robots are low-power and low memory capacity devices that can sense and act. One of the most challenges in MEMS micro robot applications is the self-reconfiguration, especially when the efficiency and the scalability of the algorithm are required. In the literature, if we want a self-reconfiguration of micro robots to a target shape consisting of P positions, each micro robot should have...
The world of big data is in need of high levels of scalability and the question, how to effectively process large-scale data sets is becoming increasingly relevant. Furthermore the existing data management schemes do not work well when data is partitioned among numerous available nodes dynamically. Approaches towards parallel data processing in cloud, which offer greater portability, manageability...
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