The lab for NEtworking and Mobile Systems (NEMS) is affiliated with the Department of Computer Science at NCTU. We start from network fundamentals to other disciplines. Our objective is to pursue customizable, flexible solutions for networking services, as well as to explore security issues and to build the countermeasures in mobile systems.


We are inviting all the students (including undergraduate, master, and Phd) who want to work on interesting problems in the areas of networking and mobile systems, to join our lab. The potential students are welcome to come for a chat with us.

We are located at 電子資訊大樓 R704.

03-5712121 #59290

NEtworking and Mobile Systems Lab



Chi-Yu Li



Wei-Han Chen


Master Students


Chia-Jui Yeh


Yao-Yu Li


Giovanni Salinas



Chien-Ting Kuo



Customizable WiFi

As the Wi-Fi technology becomes pervasive in reality, its usage pattern is also turning highly diversified in operation settings and application scenarios. This leads to new design requirements for Wi-Fi networking solutions in terms of various combinations in throughput, latency and energy efficiency. We believe that both the user demand pull and the technology push call for customizable Wi-Fi solutions.

Mobile Security

To support various advanced services, the mobile Internet technology is evolving from a simple, working design to a resilient, high-performance networking solution suite. For example, during the evolution from 2G/3G to 4G, the security impact is not fully understood. My research shows that unprecedented malicious attacks can be launched on both mobile devices and the network infrastructure in 3G/4G systems. It is because security loopholes usually lie in the newly offered services (e.g., IoT and D2D) or those legacy ones (e.g., VoLTE) that require new interactions.

Software Defined Networking

To support several new technologies (e.g., IoT, D2D, Multi-RAT, etc.), the future 5G network architecture requires to achieve various goals: high throughput, low delays, massive connectivity, resilience, security, to name a few. It thus needs to be flexible enough to dynamically meet requirements of different technologies. Software-Defined Networking (SDN) can be a holistic solution to such flexibility.