学术交流



台湾淡江大学资讯工程学系许辉煌教授、王英宏教授来实验室学术访问

2014-07-03

2014年7月3日下午台湾淡江大学资讯工程学系许辉煌教授、王英宏教授到软件园校区进行了学术访问,并为校区师生做了题为“在云中建构智能环境 (Building Smart Environments in the Cloud)和Apply Sequence Frequency Reuse Scheme to Enhance Coordinated Multi-Point Transmission in LTE-A”的学术报告。

题目:在云中建构智能环境 (Building Smart Environments in the Cloud)

摘要: 为了自动提供以人为中心的多样服务,智能环境是人们所期望的。在智能环境中,隐藏於环境中的系统首先透过各式的传感器,如摄像机、射频识别、红外线传感器、运动传感器和压力传感器等,来蒐集人在环境中的信息。这些信息经过进一步处理之後,可以帮助系统了解人在环境中的景况和意图。如此系统才能即时地提供适切的服务给使用者。嵌入式计算和物联网是建构如此的智能环境的两个主要技术。然而,这样的系统需要处理大量的传感器数据,才能进一步提供更复杂、更细致的服务。因此,在云中来储存和处理大量的传感器数据是必然的。在本演讲中,我们将回顾普适计算和环境智能的概念和发展。接着介绍一些智能环境的重要项目。最後,我们将讨论云计算成熟之後的典范移转。

题目:Apply Sequence Frequency Reuse Scheme to Enhance Coordinated Multi-Point Transmission in LTE-A

Abstract: OFDMA communication technology becomes for the next generation mobile communication systems (4G) standards. Decreasing Inter-Cell Interference (ICI) is one of important issues in OFDMA. A new technology of LTE-A (Lone Term Evolution-Advanced) is CoMP(CoordinateMulti-Point, CoMP) transmission, which purpose is to solve low performance and poor quality of transmission due to interference cause by. Even through there are many LTE research papers are presented to explore the use of frequency reuse mechanism to solve the ICI, but they are inappropriate for CoMP technology. In this paper, we propose an efficiently Sequence Frequency Reuse(SeFR) scheme to improve low performance that cause by ICI, and making restrict in ICI seriously region to work smoothly on CoMP. According to the results of simulation, the proposed mechanism makes the CoMP transmission to achieve higher efficiency in the use of, and improves the SINR value of CEU (Cell Edge Users).