Fast beam tracking and beam-forming technology are essential for the communication signal quality of high-capacity and high-quality. In this paper, the authors design a digital Retro Directive array Antenna (RDA) system possible for beam-forming technology without any prior location information for signal quality improvement and security improvement. Simulation results show ...Download Now
In this paper, the authors propose a method for embedding real characters in the 3D virtual space. Most systems have adopted virtual characters into the 3D virtual space to give more realistic situation, where the virtual characters have been controlled by user-steered interfaces. In order to take user immersion, they ...Download Now
Cloud Computing Technique can use effective service whenever/wherever and get rid of the division of each source is soaring. However, in the Cloud Computing environment which all information are centered, there is no sufficient method for users to access data safely when accesses. In this paper, guaranteeing technique of service ...Download Now
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