I am a Ph.D. student at the Department of Computer Science at the College of William and Mary. My research interests include wireless networks and mobile systems, with a focus on improving the performance and efficiency of real-world systems.
I received the M.S. degree from Shanghai Jiao Tong University and the B.S. degree from Shandong University, both on Control Science and Engineering. I was a Research Assistant at the Mobile and Communications Group of Intel at Shanghai.
IEEE 802.11ax is the next generation WiFi standard which aims at High Efficiency WLAN (HEW) in high density scenarios. This project includes a NS3 simulation model, some PHY calibration results, and 5 patents for the IEEE 802.11ax standard. The simulation model includes 40,000 lines of
C++ code, and all the source code and patents are owned by Intel. Some documents and calibration results can be found at the IEEE 802.11 website, and the related patents are listed below.
IEEE 802.11n introduces MIMO and provides high throughput for WiFi, but it needs more frequent measurement to acquire sufficient information for all possible MIMO settings. This project exploits both packet and physical level metrics to get accurate and fast wireless measurement for mobile 802.11n networks. It was written in 2,000 lines of
C code based on Qualcomm Atheros's wireless driver ath9k.
GSM-R networks provide wireless connections for high-speed railway. The GSM-R monitoring system passively monitors the wireless interface in real-time to improve the GSM-R reliability in extremely high-speed scenarios. The software was written in 4,000 lines of
C# code, deployed on a Windows XP Embedded platform, and tested along the Beijing-Shanghai high-speed railway.
This project provides a performance evaluation of Zigbee networks based on NS2. The deployment of Zigbee nodes is in a 3-D topology. It provides a NS2 simulation model written in
tcl, and the evaluation script written in