JHC系列讲座 Blockchain Scalability: Challenges and Solutions

Posted 2021-04-25 JohnHopcroft中心

Time

14:00-17:00, Tuesday, November 13th, 2018

Venue

Room 1-402, SEIEE Building, Shanghai Jiao Tong University

Host

Xinbing Wang

Title

Blockchain Scalability: Challenges and Solutions

Abstract

Current blockchain systems suffer from extremely low throughput and high latency, thus hindering the mass adoption of decentralized applications. While significant efforts have been put on improving blockchain scalability by using more sophisticated consensus mechanisms, they are fundamentally bottlenecked by the processing speed of a single node, which is still far from satisfying the requirement of mass adoption. In this talk, we will describe a new dimension for improving blockchain scalability: off-chain (layer-2) scaling, and discuss how it will become the inflection point for dApp mass adoption. Off-chain scaling techniques such as state channel and side chains are able to support truly scale-out dApps with better privacy and no compromise on the trust-free guarantee. Despite its high potentials, off-chain scaling is still in its infancy with challenges remaining unsolved, such as generalized state channel construction, state routing, state availability problems, etc. We propose Celer Network as the first coherent architecture that meets these challenges. Celer embraces a layered architecture with clean abstractions that enable rapid evolution of each individual component, including generalized state channels that supports fast and generic off-chain state transitions; a provably optimal payment routing algorithm that achieves orders of magnitude higher throughput compared to state-of-the-art solutions; a powerful development framework and runtime for off-chain dApps; and an incentive-aligned mechanism that provides stable liquidity and high off-chain state availability. We provide our vision for Celer Network 2.0, a grand unification of all off-chain scaling technologies into a single solution.

Biography

Dr. Mo Dong is co-founder of Celer Network. He received his Ph.D. from UIUC and B.E. from Shanghai Jiao Tong University. His research focuses on learning based networking protocol design, distributed systems, formal verification and Game Theory.Dr. Dong led project revolutionizing Internet TCP and improved cross-continental data transfer speed by 10X to 100X with non-regret learning algorithms. His work was published in top conferences, won Internet2 Innovative Application Award and being adopted by major Internet content and service providers. Dr. Dong was a founding engineer and product manager at Veriflow, a startup specializes in network formal verification. The formal verification algorithms he developed is protecting networking security for fortune 50 companies. Dr. Dong is also experienced in applying AlgorithmicGame Theory, especially auction theory, to computer system protocol designs. He has been teaching full-stack smart contract courses. He produces technical blogs and videos on blockchain with over 7000 subscribers.

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Dr. Qingkai Liang is co-founder of Celer Network. He received his Ph.D. degree from MIT in the field of distributed systems and network security. He proposed the first-ever provably-optimal routing algorithm in adversarial network environments, which improves network throughput by 100x under DDoS attacks. His research has been successfully applied in the industry such as in Raytheon BBN Technologies and Bell Labs. Dr. Liang first-authored 15 top-tier papers. He was the recipient of Best Paper Nominee at IEEE MASCOTS 2017 and Best-in-Session Presentation Award at IEEE INFOCOM 2016 and 2018.