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Hybrid Blockchain for IoT-Energy Analysis and Reward Plan.
Jiejun Hu1, Martin J Reed1, Mays Al-Naday1
1School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK.
Sensors (Basel, Switzerland)
|January 20, 2021
Summary
This study introduces a hybrid-blockchain (H-chain) framework for Internet of Things (IoT) security, balancing private verification and public auditing. A novel reward plan incentivizes energy-efficient contributions, optimizing social welfare in multi-organizational settings.
Area of Science:
- Computer Science
- Information Security
- Distributed Systems
Background:
- Blockchain offers enhanced security and trustworthiness for Internet of Things (IoT) applications.
- Existing consensus mechanisms like Proof of Work (PoW) and Practical Byzantine Fault Tolerance (PBFT) have high energy consumption due to computational or communication intensity.
- A trade-off exists between computation and communication energy costs in traditional blockchain consensus.
Purpose of the Study:
- To propose a hybrid-blockchain (H-chain) framework for multi-organizational IoT scenarios.
- To analyze the energy consumption of hybrid consensus mechanisms within the H-chain.
- To introduce a reward plan incentivizing energy-conscious participation in the H-chain.
Main Methods:
- Development of a hybrid-blockchain (H-chain) framework enabling private transaction verification and public sharing/auditing.
- Study of energy consumption in hybrid consensus mechanisms tailored for the H-chain.
- Proposal and simulation of a reward plan for blockchain agents, considering energy efficiency.
- Illustration of the framework in a Software Defined Network (SDN) secured IoT application.
Main Results:
- A method is provided to balance public and private aspects of H-chain deployment based on network conditions, computation, and verification complexity.
- Simulation results confirm the reward plan effectively incentivizes agents to contribute to the H-chain while managing energy consumption.
- The proposed H-chain framework demonstrates the potential for achieving optimal social welfare.
Conclusions:
- The H-chain framework offers a flexible and energy-aware solution for securing multi-organizational IoT applications.
- The developed reward mechanism is crucial for motivating participation and ensuring the efficient operation of the hybrid blockchain.
- This approach enhances trustworthiness and optimizes resource utilization in decentralized IoT ecosystems.
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