A-C: An NDN-based Blockchain Network With Erasure Coding

In blockchain systems timely dissemination of transactions and blocks to the network is not only critical for consensus but also closely related to the system efficiency and security. Flooding-based gossip protocols, as adopted in mainstream blockchain systems, can offer low latency and reliability but at the cost of communication redundancy. In this paper we present a new data dissemination protocol, namely A-C, based on the named data networking (NDN) technique. A-C integrates erasure coding (EC) in a two-layer NDN-based publication-subscription mechanism for fast data dissemination and bandwidth efficiency. To further reduce data redundancy, we introduce a new interrupt response mechanism which probabilistically terminates data forwarding at receiving nodes to suppress the dissemination of excessive data blocks. Simulation shows that A-C reduces data redundancies by up to 28.9% as compared to the state-of-the-art NDN-based solution at a comparable level of latency. Compared with the gossip protocol, A-C reduces up to 58.7% redundancies and 15% latency.