Unreachable Peers Communication Scheme in Decentralized Networks Based on Peer-to-Peer Overlay Approaches

Gengxian Li, Chundong Wang () and Huaibin Wang
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Gengxian Li: National Engineering Laboratory for Computer Virus Prevention and Control Technology, Tianjin 300384, China
Chundong Wang: National Engineering Laboratory for Computer Virus Prevention and Control Technology, Tianjin 300384, China
Huaibin Wang: National Engineering Laboratory for Computer Virus Prevention and Control Technology, Tianjin 300384, China

Future Internet, 2022, vol. 14, issue 10, 1-34

Abstract: Decentralized networks bring us many benefits, but as networks evolve, many nodes either actively or passively become unreachable behind an NAT or a firewall. This has become a hindrance to the development of decentralized networks, where peer-to-peer communication data transfer between unreachable nodes cannot be accomplished, whether in decentralized file systems, decentralized social, or decentralized IoT. The existing scheme requires a series of centralized servers or requires network-wide flooding for consensus data, which can lead to the loss of decentralized nature of the network and cause flooding bottlenecks, contrary to the design concept of decentralization. In this paper, our proposed scheme uses a structured P2P overlay network to store the indexes of unreachable nodes in the whole network, so that the characteristics of a decentralized network are still maintained while ensuring the efficiency of lookup. When nodes communicate, the transmission channel is established so that both nodes continuously transmit data streams peer-to-peer without relying on the central server. Moreover, the scheme guarantees the security and privacy of nodes’ data transmission and the P2P overlay network without relying on centralized trusted institutions. Finally, we deploy a real cluster environment to verify the effectiveness of each module at different network sizes and prove the overall feasibility of the scheme. The scheme has certain advantages over existing solutions in terms of security, privacy, communication efficiency, device democracy, etc.

Keywords: unreachable peers; decentralized architecture; structured P2P network; centralized server-independent; device democracy (search for similar items in EconPapers)
JEL-codes: O3 (search for similar items in EconPapers)
Date: 2022
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