實驗室研發方向與目標 Goals & Research Focus
  In order to develop an Internet of Things (IoT) ecosystem, NESL led by Prof. Chao-Hsien Lee divides the research scope into three levels, i.e. (a) application, (b) system and (c) network. In the system level, it is further divided into (i) backhaul, i.e., cloud/fog cluster, and (ii) end terminals, including smart, embedded and wearable devices.

1. Smart devices, including Android and Windows Phone, play the core role of user interaction and integrate with the embedded sensors or wearable accessories based on Arduino for environment detection.

2. Cloud/Fog clusters based on Hadoop provide highly-efficient computing power and storage for huge data, such as HDFS and SQL/NoSQL databases. Then, intelligent algorithms can be used to data analysis and decision support.

3. Heterogeneous wireless/mobile access technologies are responsible for (i) data collection from sensors by means of a wireless sensor network (WSN), (ii) information exchange between backhaul and end terminals using peer to peer (P2P) and content delivery network (CDN), or (iii) interconnection inside the cloud cluster, e.g., software defined network (SDN) and then achieve autonomous machine-to-machine (M2M) communication.

4. Various network applications and services are developed and optimized in the aforementioned infrastructure. In addition to traditional web-based and multimedia streaming services, location-based service (LBS) exploiting user geographical location and healthcare service according user behavior or vital signs are also considered as the next-generation killer applications of IoT.
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