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With the rapid development of the UHV power grid, the data interaction between the dispatching agencies has increased significantly, and the inter-agency integration features have become increasingly obvious. However, at present, the service bus in the dispatching control system is mainly for a single scheduling mechanism, only to achieve wide area sharing of specific application services and not...
Time synchronization is extremely important for wireless sensor networks (WSNs). For large-scale WSNs, hierarchical clock synchronization, which can effectively save energy by reducing communication overhead, has become an attractive approach in practical networks. Based on the hierarchical network, in this paper, we present a global clock skew estimation scheme with immediate clock adjustment. The...
The explosive growth of wireless multimedia services skyrockets the demand for system capacity of the cellular communication network. The heterogeneous network (Hetnet) has been widely accepted as an effective wireless networking method to improve system capacity. However, multi-tier networking architecture and the great number of small cells coexisting with macrocell make the interference management...
Data Grid integrates graphically distributed resources for solving data sensitive scientific applications. The main issues in data grid are task scheduling and data management. As data grid spans multiple organization areas, it makes centralized resource management difficult. Therefore, it is necessary to study decentralized resource management. In this paper, a decentralized architecture of integration...
Data grid integrates geographically distributed resources for solving data-sensitive scientific applications. As tasks are sensitive to data, dealing with large amount of data makes the requirement for efficiency in data access more critical. The goal of replica placement is to shorten data access time for enhancing the task execution performance. Therefore, replica placement strategies are often...
Particle filtering is a popular algorithm for vision-based target tracking. Despite its effectiveness in many fields of tracking, however, the computation requirement of particle filters is high. In this paper we propose an algorithm and architecture for vision-based particle filters. The proposed algorithm can estimate objects' positions, sizes, and angles by using color histogram as the feature...
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