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Vehicular ad hoc networks are expected to significantly improve traffic safety and transportation efficiency while providing a comfortable driving experience. However, available communication, storage, and computation resources of the connected vehicles are not well utilized to meet the service requirements of intelligent transportation systems. Vehicular cloud computing (VCC) is a promising approach...
In this paper we focus on the 0/1 fairness problem of the DCF protocol in multi-hop ad hoc network. We find that the DCF protocol can not avoid the carrier interference produced by the interference transmitter to the receiver, when the interference transmitter locates in the collision interference range of the receiver and out of the carrier sensing range of the transmitter. This is the primary cause...
Artillery training with real equipment costs a lot and inefficient. Designed this type of artillery simulation training system can accomplish the training task in low cost. The master control computer software is the communication core of the whole system, applying the object-oriented and modular design ideas to interface designing, the use of VC++2005 programming and multi-thread programming, we...
Focusing on the research of simulation system for virtual instrument and application of the status, this paper analyzes several third-party software platforms to develop interface for virtual simulation in the Windows environment, then evaluates and compares their performance. With an example of using GL Studio software, we introduce a generating ActiveX control method based on the use of photographs...
In view of the actual requirement of UAV electronic warfare and the use of virtual reality technology and visualization technology, we establish a platform for virtual simulation system and analyze the main functions of various modules including the data link simulation, electromagnetic simulation environment, and tactical simulation exercise in the system. And then we expatiate the methods and steps...
In order to manage the dynamic characteristics and provide theoretical foundation for modeling the grid services and services collaboration, by combining Object-Z with formal Statechart based on CREs (Concurrent Regular Expressions), this paper proposes an extension version of Object-Z language, GS-Z. As well, GS-Z extends Object-Z to enable the lifecycle management of grid service by introducing...
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