New Algorithm Dramatically Speeds Up Blockchain for the Internet of Things
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A breakthrough in network design promises to unlock the full potential of blockchain technology for the rapidly expanding Internet of Things (IoT). Researchers have developed a new algorithm, dubbed “Dual Perigee,” that considerably reduces delays in data transmission within IoT blockchain networks, paving the way for real-time applications adn more secure connected devices.
The promise of a fully connected world – billions of physical devices exchanging data – hinges on the secure and reliable transfer of information. Blockchain technology,traditionally associated with cryptocurrencies,offers a compelling solution as a decentralized digital ledger,shared across many computers rather than controlled by a single entity. However, the inherent speed limitations of most blockchain systems have hindered their widespread adoption in time-sensitive IoT applications.
The Bottleneck in IoT Blockchain Networks
While blockchain software itself isn’t the primary culprit, the way devices communicate within peer-to-peer networks has proven to be a major obstacle. Earlier studies often overlooked the impact of network topology – the overall structure of these connections – on performance. A team led by Associate Professor Kien Nguyen from Chiba University, Japan, set out to address this critical gap.
Their research,published in IEEE Transactions on Network and Service Management on December 17,2025,revealed a surprising source of inefficiency: frequent transmission of duplicate data. Current methods for sharing transactions and blocks – the individual data entries and larger collections of verified records, respectively – can lead to an exponential increase in redundant copies, congesting networks and causing significant delays.
Dual Perigee: A Self-Organizing Solution
To overcome this challenge, the research team developed Dual Perigee, a decentralized and lightweight algorithm that empowers devices to make smart connection decisions. Unlike systems relying on random connections, Dual Perigee allows each device to evaluate its neighbors based on their transaction and block delivery speeds. slow connections are systematically dropped and replaced with faster alternatives, allowing the network to organically reshape itself for optimal performance without the need for central control.
“We aimed to bridge the gap between theoretical design and practical deployment of IoT-blockchain systems by identifying the essential causes of their high latency and proposing a decentralized solution that is both simple and effective,” explained Dr. Nguyen.
Significant Performance Gains
Testing in a simulated 50-node IoT environment demonstrated the effectiveness of Dual Perigee. The algorithm reduced block-related delays by an impressive 48.54% compared to the standard method used by the Ethereum blockchain. Furthermore, it outperformed advanced approaches, including the original Perigee algorithm, by more than 23%. Crucially, these improvements were achieved without increasing the processing burden on individual IoT devices. the algorithm relies on passively measuring existing data flow, minimizing computational overhead.
Implications for Real-World Applications
The implications of this research are far-reaching. Faster data confirmation and sharing unlock the potential for blockchain to support applications demanding real-time responsiveness. “The proposed decentralized latency-aware peer-selection mechanism can serve as a foundation for future blockchain platforms that support real-time, mission-critical IoT services, ultimately enabling more secure, responsive, and trustworthy digital infrastructures,” Dr. Nguyen stated.
as IoT networks become increasingly complex, the need for decentralized and reliable dialog will only intensify. The researchers believe Dual Perigee could play a pivotal role in emerging technologies, including smart cities, smart homes, industrial monitoring, healthcare systems, and supply-chain tracking.
This research was supported by the Japan Society for the Promotion of Science (JSPS) (Grant Number: 23H03377) and partially by the Japan Science and Technology Agency (JST) through the establishment of university fellowships towards the creation of science and technology innovation (Grant Number: JPMJFS2107).
