Professional Experiences

Project

Research Interests

• Real-time video communication
  

• Adaptive streaming

• Reinforcement learning

Publications

(* Co-first Author, # Corresponding Author)

• Bowei Xu, Jingyan Li, Xu Zhang, Hao Chen#, and Zhan Ma, "Reparo: A Universal Enhancement Framework for Viewport-Aware Adaptive Volumetric Video Streaming," ACM MM, 2026.

• Jiaoyang Yin, Hao Chen#, and Yiling Xu#, "Jumpshot: A pre-buffering mechanism with personalized playback prediction for continuous video streaming," Displays, Volume 95, 2026.

• Xuehao Wu, Bowei Xu, Hao Chen#, and Zhan Ma, "DynA: Breaking Fixed-Increase Rigidity in Google Congestion Control," accepted by APNet (Poster), May 2026.

• Wenhao Wu, Guixing Yang, Bowei Xu, Hao Chen#, and Zhan Ma, "COOPASY: Cooperative Asynchronous Rate-Reduction Control for Video Conferencing over High-RTT Weak Networks," accepted by APNet (Poster), May 2026.

• Wuyang Cong, Junqi Shi, Lizhong Wang, Weijing Shi, Ming Lu, Hao Chen, and Zhan Ma, "Reinforced Rate Control for Neural Video Compression via Inter-Frame Rate-Distortion Awareness," AAAI, 2026.

• Hongwei Sha, Mucheng Dong, Quanyou Luo, Ming Lu, Hao Chen, and Zhan Ma, Towards Loss-Resilient Image Coding for Unstable Satellite Networks, AAAI, Feb. 2025. (Oral)

• Bowen Gu, Hao Chen#, Ming Lu, Jie Yao, and Zhan Ma, Adaptive Rate Control for Deep Video Compression with Rate-Distortion Prediction, IEEE Data Compression Conference, March 2025. (Oral)

• Peiyao Guo, Wenjing Su, Xu Zhang, Hao Chen#, and Zhan Ma, 'Modeling the Non-Uniform Retinal Perception for Viewport-Dependent Streaming of Immersive Video,' Multimedia Systems, 30:237, August 2024.

• Wenjing Su, Yueheng Li, Hao Chen#, and Zhan Ma, 'Compass: A Prefetching Framework with Viewport Patching for 360-degree Video Streaming,' ACM SIGCOMM Workshop on Emerging Multimedia Systems, June 2024.

• Hao Chen, Bowei Xu, Shaowei Wang, Xun Cao#, and Zhan Ma#, 'Toward Adaptive Volumetric Video Streaming: A Joint Network-Viewport Adaptation Framework,' IEEE Communications Magazine, vol. 63, no. 3, pp. 197-203, 2024.

• Jiaoyang Yin*, Hao Chen*, Yiling Xu#, Ma Zhan, and Xiaozhong Xu, 'Learning Accurate Network Dynamics for Enhanced Adaptive Video Streaming,' IEEE Trans. Broadcasting, vol. 70, no. 3, pp. 808-821,  2024.

• Wenming Zhu*, Wenjing Su*, Kai Yang, and Hao Chen#, 'Improving the application performance of Loki via algorithm optimization,' Multimedia Systems 30, 2(2024).

• Yueheng Li*, Hao Chen*, Bowei Xu, Zicheng Zhang, and Zhan Ma#, 'Improving Adaptive Real-time Video Communication via Cross-layer Optimization,' IEEE Trans. Multimedia, vol. 26, pp. 5369-5382, 2024.

• Yueheng Li, Zicheng Zhang, Hao Chen#, and Zhan Ma. 'Mamba: Bringing Multi-Dimensional ABR to WebRTC.' Proceedings of the 31st ACM International Conference on Multimedia. 2023. [Website]

• Bowei Xu, Hao Chen#, and Zhan Ma. 'Karma: Adaptive Video Streaming via Causal Sequence Modeling.' Proceedings of the 31st ACM International Conference on Multimedia. 2023. (Oral) [Website]

• Mingliu Sun, Hao Chen#, and Zhan Ma, Quality-of-Experience Assessment for Ultra-low Latency Live Streaming Videos, IEEE MMSP, Oct. 2023. (Oral)

• Qianyuan Zheng, Hao Chen#, and Zhan Ma. Bamboo: Boosting Training Efficiency for Real-Time Video Streaming via Online Grouped Federated Transfer Learning. In Proceedings of the 7th Asia-Pacific Workshop on Networking (APNET '23). Association for Computing Machinery, New York, NY, USA, 215–216.

• Yueheng Li, Qianyuan Zheng, Zicheng Zhang, Hao Chen#, and Zhan Ma. Improving ABR Performance for Short Video Streaming Using Multi-Agent Reinforcement Learning with Expert Guidance. In Proceedings of the 33rd Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV '23), Association for Computing Machinery, New York, NY, USA, 58-64.

• Chao Zhang, Jiaoyang Yin, Yiling Xu#, Hao Chen#, Xiaozhong Xu, and Shan Liu, 'OLNC: Online Learning of Network Conditions for Adaptive Video Streaming,' 2023 IEEE International Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), Beijing, China, 2023, pp. 1-6.
  

• Zicheng Zhang, Hao Chen#, Xun Cao, and Zhan Ma, 'Anableps: Adapting Bitrate for Real-Time Communication Using VBR-encoded Video,' 2023 IEEE International Conference on Multimedia and Expo (ICME), Brisbane, Australia, 2023, pp. 1685-1690. (Oral)

• Zhehao Chen, Ming Lu, Hao Chen*, and Zhan Ma*, 'Robust Ultralow Bitrate Video Conferencing with Second Order Motion Coherency,' 2022 IEEE 24th International Workshop on Multimedia Signal Processing (MMSP), Shanghai, China, 2022, pp. 1-6.

• Hao Chen, Xu Zhang, Yiling Xu, Ju Ren, Jingtao Fan, Zhan Ma, and Wenjun Zhang, 'T-Gaming: A Cost-Efficient Cloud Gaming System at Scale', IEEE Trans. Parallel and Distributed Systems, vol. 30, no. 12, pp. 2849-2865, Dec. 2019. [This work has been adopted into a commercialized AnyGame to support thousands of gaming users daily!]

• Hao Chen, Xu Zhang, Yiling Xu, Zhan Ma, and Wenjun Zhang, “Efficient Mobile Video Streaming via Context-Aware RaptorQ-Based Unequal Error Protection”, IEEE Trans. Multimedia, vol. 22, no. 2, pp. 459-473, Feb 2020. 

• Hao Chen, Ming Lu, Zhan Ma, Xu Zhang, Yiling Xu, Qiu Shen, and Wenjun Zhang, 'Learned Resolution Scaling Powered Gaming-as-a-Service at Scale', accepted by IEEE Trans. Multimedia, March 2020.

• Xu Zhang, Hao Chen, Yangchao Zhao,  Zhan Ma, Yiling Xu, Haojun Huang, Hao Yin, and Dapeng Oliver Wu, 'Improving Cloud Gaming Experience through Mobile Edge Computing', IEEE Wireless Communications, vol. 26, no. 4, pp. 178-183, August 2019. 

• Yiling Xu, Hao Chen, Yangchao Zhao, Wenjun Zhang, Qiu Shen, Xu Zhang, and Zhan Ma, 'Neural Adaptive Transport Framework for Internet-scale Interactive Media Streaming Service', Proc. of IEEE BMSB, Jeju, Korea, June 2019. [2019 IEEE Broadcast Technology Society Best Paper Award]

• Yiling Xu, Hao Chen, Wenjun Zhang, Jenq-Neng Hwang, 'Smart Media Transport: A Burgeoning Intelligent System for Next Generation Multimedia Convergence Service over Heterogeneous Networks in China', IEEE MultiMedia, 2019, 26(3): 79-91.

Honors & Awards