Integration and Evaluation of the Physically-Based Kademlia Protocol in Blockchain

As blockchain technology continues to be widely adopted, enhancing the efficiency, scalability, and decentralization of blockchain networks has become a pivotal research direction. However, in high-mobility scenarios such as vehicular networks, characteristics like high latency and network instability pose significant challenges to the performance and robustness of blockchain systems. The Kademlia protocol, known for its efficiency as a Distributed Hash Table (DHT) protocol, has been extensively applied in decentralized networks. This study introduces physical address information into the Kademlia protocol, exploring an optimized integration with blockchain to improve node search efficiency, reduce latency, and optimize network topology. This paper integrates the physically-based Kademlia protocol into blockchain applications and evaluates its effectiveness within these systems. The experiment analyzes performance metrics such as blockchain consensus convergence time and node message exchange volumes. The experimental results demonstrate that, in environments where blockchain nodes are geographically correlated, the physically-based Kademlia protocol offers significant advantages over traditional protocols in terms of data transmission efficiency and decreased lookup latency. These benefits are particularly pronounced in environments where nodes exhibit geographical correlation.