学术交流

台灣淡江大學資訊工程學系許輝煌教授、王英宏教授来实验室学术访问

2014-07-03

2014年7月3日下午台灣淡江大學資訊工程學系許輝煌教授、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“在雲中建構智能環境 (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。

題目:在雲中建構智能環境 (Building Smart Environments in the Cloud)

摘要: 為了自動提供以人為中心的多樣服務，智能環境是人們所期望的。在智能環境中，隱藏於環境中的系統首先透過各式的傳感器，如攝像機、射頻識別、紅外線傳感器、運動傳感器和壓力傳感器等，來蒐集人在環境中的信息。這些信息經過進一步處理之後，可以幫助系統了解人在環境中的景況和意圖。如此系統才能即時地提供適切的服務給使用者。嵌入式計算和物聯網是建構如此的智能環境的兩個主要技術。然而，這樣的系統需要處理大量的傳感器數據，才能進一步提供更複雜、更細緻的服務。因此，在雲中來儲存和處理大量的傳感器數據是必然的。在本演講中，我們將回顧普適計算和環境智能的概念和發展。接著介紹一些智能環境的重要項目。最後，我們將討論雲計算成熟之後的典範移轉。

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).