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Spectrum aggregation (SA) is one of the potential LTE advanced technologies. The analysis and simulation for SA in LTE-Advanced system are addressed in this paper. We first analyze the system model of SA, and propose some evaluation methodologies for SA. Then the schedulers for SA with joint queue and disjoint queue are proposed. Finally, different traffic models are considered in the system level...
In this paper, we introduce the concept of pyramid fuzzy numbers, which may be conveniently used in some practical applications like triangle fuzzy numbers, investigate their properties, and obtain their operations rules of addition and scalar multiplication. And then, on the pyramid fuzzy number space, we define a metric that not only holds the suitability but also convenient for getting an arithmetic...
The configuration characteristics and control system composition of inspection robot are firstly introduced. Then the planning method and the control process of crossing obstacles are discussed aiming at crossing obstacles automatically. Namely, with the method of hierarchical planning, the on-line planning is done from the behavior level using production system reasoning. The action sequence will...
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