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I am an assistant professor in the Computer Science Department, School of Informatics and Computing at Indiana University Bloomington. My research interests cover the broad areas of computer networking, mobile system, network measurement, and energy efficiency. I obtained my Ph.D. degree in Computer Science and Engineering at University of Michigan, and my Bachelor degree in Computer Science (ACM Honors Class) from SJTU, China. Prior to joining IU, I worked at AT&T Labs - Research.

I am looking for Ph.D. students with interests in systems and networking. Students with experiences in mobile systems/OS, wearable devices, networking, browser/video systems, and mobile cloud/security are strongly encouraged to apply.

My on-going and past research includes:

My profile can be found at

I prototyped the ARO (mobile Application Resource Optimizer) tool based on our Mobisys 2011 paper. It was productized by AT&T. ARO is now open-sourced and widely used in industry. [New in 2017: ARO has been extended into the AT&T Video Optimizer, which adds analysis and best practices for mobile videos.]