High Performance Computing, Networking and Communication Systems 

About: High Performance Computing, Networking and Communication Systems is an academic conference. The conference publishes majorly in the area(s): Adaptive quality of service multi-hop routing & Link-state routing protocol. Over the lifetime, 23 publications have been published by the conference receiving 97 citations.

A Simple Selective Mapping Algorithm for the Peak to Average Power Ratio in Space Time Block Coded MIMO-OFDM Systems.

Abstract: A multiple stage magnetic railgun accelerator (10) for accelerating a projectile (15) by movement of a plasma arc (13) along the rails (11,12). The railgun (10) is divided into a plurality of successive rail stages (10a-n) which are sequentially energized by separate energy sources (14a-n) as the projectile (15) moves through the bore (17) of the railgun (10). Propagation of energy from an energized rail stage back towards the breech end (29) of the railgun (10) can be prevented by connection of the energy sources (14a-n) to the rails (11,12) through isolation diodes (34a-n). Propagation of energy from an energized rail stage back towards the breech end of the railgun can also be prevented by dividing the rails (11,12) into electrically isolated rail sections (11a-n, 12a-n). In such case means (55a-n) are used to extinguish the arc at the end of each energized stage and a fuse (31) or laser device (61) is used to initiate a new plasma arc in the next energized rail stage.

Image Retrieval from Databases: an Approach using Region Color and Indexing Technique.

Abstract: Summary The paper focuses on a low-dimensional color-based indexing technique for achieving efficient and effective retrieval performance. We have implemented the technique of retrieval of images from databases based on color feature extracted from each region/regions of an image represented by dominant or representative color descriptor. Each image is segmented using Mean Shift algorithm, a robust clustering technique to extract color feature of a region of interest. Image databases have been designed and the image region features are ingested into them. Indexing data structures are designed to support basic operations on image databases such as search, insertion, and deletion. Search efficiency is considered as the most important aspect because search is normally carried out on-line. The new algorithm cluster-based R*-tree indexing is proposed and compared the efficiency with R* -tree and sequential search. The accuracy of the retrieval system is measured and compared the results. Experimental results show the high performance of the proposed method. The toolbox is developed in JAVA to incorporate all these modules and retrieve images based on query-by-example.

Policy based Agent Architecture for Sensor based Mesh Networks - Health Care Monitoring.

Abstract: A pitot tube having a series of pressure sensing ports on the upstream side of the tube and a second series of pressure sensing openings on the downstream side of the tube. A longitudinal internal wall in the tube forms a pair of chambers, one of which communicates with the upstream ports and the second which communicates with the downstream ports. A plate attached to the end of the tube has diverging passages communicating with the two chambers, the plate forming a flange for connecting a manifold, a transmitter for indicating the flow pressures sensed by the ports, a gauge or the like.

On-demand Resource Allocation Policies for Computational Steering Support in Grids

Abstract: We propose an infrastructure for resource management in the Grids with two novel resource allocation strategies and compare them to the most common policy of advance reservation An advance reservation approach utilizes a fixed execution time penalty for reserving resources at specific times in the future Alternatively, our allocation strategies rely on the frequently dynamic information of node availabilities to make on-demand allocation decisions based on the most frequently updated information We investigate the effectiveness of our approach in terms of performance, system utilization, and access accuracy We demonstrate that, by placing full trust to each system component, this results in an increased performance in serving application requests without causing severe accuracy and performance degradation, as the number of nodes and requests increases