-Aug.18, 2025: 日本早稻田大学。I visited Prof. Horonori Washizaki’s research group and gave a talk titled “BrokerChain Testnet: How we Design and What we have learned.”
Poster
My talk
Activity of IEEE Waseda University Student Branch
Meeting with Prof. Washizaki
Meet up with Prof. Washizaki
A gift to Prof. Washizaki
Aug.10, 2025: 香港, Workshop on BFI 2025 at International Conference on Blockchain Research and Applications, Invited Speaker. Talk: (英文)“BrokerChain Testnet: How we Design and What we have learned ”,(中文)“BrokerChain 测试网: 设计 与 运行”。
-Aug.2, 2025: 黄老师在区块链国际会议 CCSB (2025 5th International Conference on Computer Science and Blockchain) 受邀做 keynote speech 特邀报告 (全程英文演讲),报告题目《BrokerChain Testnet: How we design and What we have learned》【Keynote Speaker 介绍】
ACM CoNEXTWorkshop on Blockchain-Network Synergy: Addressing Network-Centric Challenges in Decentralized Systems (BlockNetSys 2025)
Co-located with ACM CoNEXT 2025, Hong Kong, China
Statement of Interest
As the Internet continues to evolve toward hyper-distributed, even decentralized, and trustless infrastructure, blockchain technologies are emerging as a foundational component to enable secure, verifiable, and autonomous interactions between decentralized systems. Meanwhile, the decentralization revolution faces a critical bottleneck: network-layer limitations. While blockchain promises trustless coordination, its practical deployment is constrained by fundamental networking challenges:
The latency-throughput paradox: Blockchain’s security relies on global state synchronization, yet network propagation delays inherently limit transaction throughput (e.g., Bitcoin’s 7TPS vs. Visa’s 24,000TPS).
Topology-awareness gap: Current P2P overlays operate agnostically to physical network topology, causing inefficient broadcast storms and unnecessary cross-continental traffic.
Consensus-network mismatch: BFT protocols like PBFT assume synchronous networks, while real-world deployments face asymmetric latencies and intermittent connectivity.
Verifiability-cost tradeoff: Zero-knowledge proofs enable privacy but generate 10- 100x more network payload (IEEE S&P’23 measurements)
BlockNetSys will pioneer network-aware blockchain design by:
Developing network-optimized consensus protocols leveraging programmable data planes;
Redesigning topology-sensitive P2P overlays using network coordinates;
Creating hybrid trust models that balance decentralization with network realities.
The Aim of this Workshop
We seek to bring together researchers from networking, distributed systems, and blockchain communities to discuss opportunities and challenges in addressing the network-centric challenges in blockchains and decentralized systems.
This workshop is particularly relevant to the CoNEXT community, where emphasis on systems design, real-world deployments, and forward-looking architecture aligns closely with the emerging vision of decentralized intelligent network infrastructure.
We invite original papers (4–6 pages) that address network-layer challenges in blockchain systems and networks. We also explore the blockchain-empowered architecture, systems, and protocols for networking, decentralized systems, and trusted infrastructures.
Topics of interest
Topics of interest include, but are not limited to:
Trust-aware data routing and verifiable network telemetry
Token-based incentive mechanisms for network resource sharing
Decentralized identity, naming, and access control for network services
Smart contract-based networking and systems
Blockchain-assisted federated learning and decentralized machine learning
Zero-knowledge proofs and cryptographic systems for privacy-preserving networking
Blockchains and software engineering for edge-cloud networking
Lightweight blockchain systems for embedded and IoT networks
Consensus protocols tailored for distributed networks
Cross-chain technologies for distributed Networks and Systems
SpecialEmphasis: We particularly encourage:
Measurement studies of blockchain network traffic
Network stack modifications for blockchain workloads
Hardware/software co-designs that reduce networking overhead
Submission Guidelines
Submissions must be original, unpublished work, and not under consideration at another conference or journal. Submitted papers must be at most six (6) pages long, excluding references and appendices, in two-column 10ptACM format . Authors of accepted submissions are expected to present and discuss their work at the workshop. All submissions will be peer-reviewed, and the review process will be double-blind. Per the anonymity guidelines, please prepare your paper in a way that preserves the anonymity of the authors. No information will be shared with third parties. Please submit your paper viahttps://blocknetsys2025.hotcrp.com/
Important Dates
Paper Submission: July 28th, 2025
Paper Acceptance Notification: September 12nd, 2025
Camera-ready Due: September 21st, 2025
Program Available Online: October 15th, 2025
TPC Chairs
Huawei Huang, Professor, Sun Yat-sen University, China
Dusit Niyato, Professor, NTU, Singapore
Yi Sun, Professor, Chinese Academy of Sciences, China
Hironori Washizaki, Professor, Waseda University, Japan
Operation Committee
Jianwen Yuan, Sun Yat-sen University, China
PC Members
Akila Sanjaya Siriweera, The University of Aizu
Jiasong Tang, Osaka Metropolitan University
Jialong Li, Waseda University
Yijun Lu, Waseda University
Nikhil Kumar Rajput, University of Delhi
Zihang Wang, Waseda University
Qianqian Pan, Waseda University
Seonah Lee, Gyeongsang National University
Zehao Wang, Concordia University
Zeyang Ma, Concordia University
Huaqian Cai, Peking University
Xiang Jing, Peking University
Huansheng Ning, University of Science and Technology Beijing
Stephen S. Yau, Arizona State University
Julie A. McCann, Imperial College
Yang Liu, Alibaba Group Holding Limited
Xiaoqing Wang, Alibaba Group Holding Limited
Yuming Deng, Alibaba Group Holding Limited
Ping Yang, State University of New York
Guanhua Yan, State University of New York
Shiyong Lu, Wayne State University
Hyong S. Kim, Carnegie Mellon University
Yongfeng Huang, Tsinghua University
Qinglin Zhao, Macau University of Science and Technology
Yun Ma, Tsinghua University
Juanjuan Li, Chinese Academy of Sciences
Somnath Panja, Indian Statistical Institute
Chenhao Wu, Waseda University
Yuyin Ma, Xinjiang University
Wenhao Yan, Sophia University
Zhenke Chen, Softusing Co. Ltd.
Jiong Dong, Xuchang University
Jianjin Zhao, Beijing University of Posts and Telecommunications
Jianyang Ding, Jiangnan University
Tingting Xiao, Hangzhou Normal University
Xueyan Zhang, Huawei Canada
Xiaoyuan Yu, Macau University of Science and Technology
Huawei Huang, Miaoyong Xu, Chenlin Wu, Xiaofei Luo, Jian Zheng, Jianru Lin, Zibin Zheng*, “DecoupleChain: A Two-Layer Blockchain Sharding System Enabling Frequent Shard Reconfiguration”, IEEE The International Conference on Web Services (ICWS), July 2025.
[1] Wang J, Wang H. Monoxide: Scale out blockchains with asynchronous consensus zones[C]// Proc. of 16th USENIX Symposium on Networked Systems Design and Implementation (NSDI’19). 2019:95-112.
[2] Wood G, et al. Ethereum: A secure decentralised generalised transaction ledger[J]. Ethereum project yellow paper, 2014, 151(2014):1-32.
[3] Huang H, Zhao Y, Zheng Z. tmpt: Reconfiguration across blockchain shards via trimmed merkle patricia trie [C]//Proc. of the 31st International Symposium on Quality of Service (IWQoS 23). 2023:1-10.
2024年12月6日,INFOCOM 2025结果公布,中山大学软件工程学院黄华威研究组(HuangLab)与北航、新加坡科技设计大学、香港浸会大学、新加坡南洋理工大学合作的两篇区块链分片机制的论文被接收。INFOCOM 全称为 IEEE International Conference on Computer Communications, 是CCF-A类计算机网络领域顶会。INFOCOM 2025年的论文接收率为 272/1458 = 18.65%。
两篇被接收论文信息如下。
[论文1] Jian Zheng (郑简), Huawei Huang* (黄华威,通讯作者), Yinqiu Liu (刘寅秋), Taotao Li (李涛涛), Hong-Ning Dai (戴弘宁), Zibin Zheng (郑子彬), “Justitia: An Incentive Mechanism towards the Fairness of Cross-shard Transactions,” IEEE International Conference on Computer Communications (INFOCOM’25), May 19-22, 2025, London, United Kingdom.
[论文2] Xinpeng Huang (黄鑫鹏), Wanqing Jie (揭晚晴), Shiwen Zhang (张诗雯), Haofu Yang (杨浩甫), Wangjie Qiu (邱望洁,通讯作者), Qinnan Zhang (张沁楠,通讯作者), Huawei Huang (黄华威), Zehui Xiong (熊泽辉), Shaoting Tang (唐绍婷), Hongwei Zheng (郑宏威), Zhiming Zheng (郑志明), “ContribChain: A Stress-Balanced Blockchain Sharding Protocol with Node Contribution Awareness”, IEEE International Conference on Computer Communications (INFOCOM’25), May 19-22, 2025, London, United Kingdom.
2024年5月11-12日,中国计算机学会第17届服务科学国际会议(CCF 17th International Conference on Service Science, CCF ICSS 2024)在香港理工大学举办。5月11日下午,实验室在本次会议举办了以“区块链、可信计算和服务”(Blockchain, Trustworthy Computing, and Services)为主题的学术论坛。
2023年12月1日,INFOCOM’24 结果公布,HuangLab 两篇区块链分片机制的论文被接收。INFOCOM 全称为 IEEE International Conference on Computer Communications, 是国际上公认的计算机网络领域顶级会议、CCF-A类国际会议,2024年的论文接受率为 256/1307 = 19.58%。
两篇被接收论文信息如下。
[论文1] Qinde Chen (陈钦德), Huawei Huang* (黄华威), Zhaokang Yin (殷昭伉), Guang Ye (叶光), Qinglin Yang (杨青林), “Broker2Earn: Towards Maximizing Broker Revenue and System Liquidity for Sharded Blockchains”, IEEE International Conference on Computer Communications (INFOCOM’24), 20–23 May 2024, Vancouver, Canada.
[论文2] Huawei Huang (黄华威), YueLin (林岳), Zibin Zheng*(郑子彬), “Account Migration across Blockchain Shards using Fine-tuned Lock Mechanism”, IEEE International Conference on Computer Communications (INFOCOM’24), 20–23 May 2024, Vancouver, Canada.