[Photo of Junchang Wang]

Junchang Wang

School of Computer Science
Nanjing Univ. of Posts and Telecom.

Email:        junchangwang {at} gmail {dot} com
Address:    Box. 844, No. 9 WenYuan Road, Nanjing, Jiangsu, 210023, China

About Me

Junchang Wang is a researcher at Nanjing University of Posts and Telecommunications (NJUPT). He holds a Ph.D. in Computer Science from University of Science and Technology of China (USTC). Prior to joining NJUPT, he was a visiting student at Yale University, visiting scholar at the Chinese University of Hong Kong (CUHK), and staff engineer at Lenovo as well as startups.

His research focuses on parallel and distributed computing, with a particular emphasis on its applications in database and networking systems.

Selected Publications


  • BitEngine: Query Engines Using Bitmap Indexing
    Junchang Wang, Fei Gao, Fu Xiao, Manos Athanassoulis
    VLDB'26. International Conference on Very Large Data Bases, 2026
    [PDF] [Source Code]

  • RABIT: Efficient Range Queries with Bitmap Indexing
    Junchang Wang, Fu Xiao, Manos Athanassoulis
    SIGMOD'26. ACM International Conference on Management of Data, 2026
    [PDF] [Source Code]

  • CUBIT: Concurrent Updatable Bitmap Indexing
    Junchang Wang, Manos Athanassoulis
    VLDB'25. International Conference on Very Large Data Bases, 2025
    [PDF] [Source Code]

  • Thunder: Minimum I/O Latency of Disaggregated Storage by Packet-Level Write-Through
    Fu Xiao, Weibei Fan, Xin He, Junchang Wang, Lei Han, Xiaoliang Wang, Chen Tian, Xia Zhu
    ToN'25. IEEE Transactions on Networking, 2025

  • Node Essentiality Assessment and Distributed Collaborative Virtual Network Embedding in Datacenters
    Weibei Fan, Fu Xiao, Mengjie Lv, Lei Han, Junchang Wang, Xin He
    TPDS'23. IEEE Transactions on Parallel and Distributed Systems, 2023

  • DHash: Dynamic Hash Tables with Non-blocking Regular Operations
    Junchang Wang, Dunwei Liu, Xiong Fu, Fu Xiao, Chen Tian
    TPDS'22. IEEE Transactions on Parallel and Distributed Systems, 2022
    [PDF] [Appendix] [Source Code]

  • Accurate counting algorithm for high-speed parallel applications
    Junchang Wang, Tao Li, Xiong Fu
    CPE'19. Concurrency and Computation: Practice and Experience, 2019
    [PDF]

  • Maple: Simplifying SDN Programming Using Algorithmic Policies
    Andreas Voellmy, Junchang Wang, Y. Richard Yang, Bryan Ford, Paul Hudak
    SIGCOMM'13, 87-98, 2013
    [PDF]

  • B-Queue: Efficient and Practical Queuing for Fast Core-to-Core Communication
    Junchang Wang, Kai Zhang, Xinan Tang, Bei Hua
    IJPP'13. International Journal of Parallel Programming, volume 41, issue 1(2013), pp.137-159

  • Scalable software defined network controllers
    Andreas Voellmy, Junchang Wang
    SIGCOMM Poster'12, 2012
    [PDF]