He has worked extensively in learning-based system prototyping and performance optimization for large-scale networked computer systems. Previously he led product development in content delivery network at Cisco, which had a revenue impact of 3 Billion US dollars globally. His work in Multi-Screen Cloud Social TV has been featured by global media (more than 1600 news articles from over 29 countries) and received 2013 ASEAN ICT Awards (Gold Medal). His work on DCwiz, a Cloud AI platform to digitalize, optimize and automate data center operations and management, has won 2020 IEEE TCCPS Industrial Technical Excellence Award, 2016 ASEAN ICT Awards (Gold Medal) and 2015 Datacentre Dynamics Awards 2015 – APAC (‘Oscar’ award of data centre industry). He has won 2019 Nanyang Research Award and 2016 Nanyang Awards in Innovation and Entrepreneurship, the highest achievements at NTU, Singapore. He is a co-recipient of multiple journal best papers awards, including IEEE Transactions on Circuits and Systems for Video Technology (2019), IEEE Multimedia (2015), and and several best paper awards from international conferences, including 2020 IEEE VCIP, 2016 IEEE Globecom, 2016 IEEE Infocom MuSIC Workshop, 2015 EAI/ICST Chinacom, 2014 IEEE WCSP, 2013 IEEE Globecom and 2012 IEEE EUC. He received 2016 IEEE ComSoc MMTC Distinguished Leadership Award. He has served or is serving on editorial boards for multiple transactions and journals, including IEEE Transactions on Circuits and Systems for Video Technology, IEEE Wireless Communication Magazine, IEEE Communications Survey & Tutorials, IEEE Transactions on Multimedia, IEEE Transactions on Signal and Information Processing over Networks, IEEE Access Journal and Elsevier Ad Hoc Networks, and was elected as the Chair for IEEE ComSoc Multimedia Communication Technical Committee (2014-2016). His research interests include cloud computing, green data center, distributed machine learning, blockchain, big data analytics, multimedia network and mobile computing. He is a Fellow of IEEE.