HC-LDL: hybrid consensus algorithm for lightweight distributed ledger in D2D communication

The rise of distributed ledger technologies (DLTs) has brought significant advancements in data security and decentralized transaction processing. However, adapting these technologies to mobile and resource-constrained environments remains a challenge. This article explores HC-LDL, a novel mobile distributed ledger designed to operate efficiently on mobile devices and facilitate Device-to-Device (D2D) communication. HC-LDL leverages two unique consensus protocols Proof-of Context (PoC) and Proof-of-Interchangeability (PoI) to address the limitations faced by traditional DLTs in mobile settings. PoC utilizes contextual data and user reputation to validate new blocks, ensuring secure and contextually relevant data addition. PoE periodically generates regenesis blocks that summarize and reorganize the ledger, optimizing storage and enhancing scalability. Through these mechanisms, HC-LDL provides a robust solution for mobile applications, offering secure, efficient, and decentralized data management. This article delves into the architecture, consensus protocols, and potential applications of HC-LDL, highlighting its innovative approach to mobile distributed ledger technology and D2D communication.