Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review

Blockchain is a technology that has gained popularity in recent years due to its immutability and decentralized features. Various industries have started integrating this technology into their business models, resulting in the development of various types of blockchain networks. This paper reviews t...

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Main Authors: Brandon Liew Yi Quan, Nur Haliza Abdul Wahab, Arafat Al-Dhaqm, Ahmad Alshammari, Ali Aqarni, Shukor Abd Razak, Koh Tieng Wei
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Access
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Online Access:https://ieeexplore.ieee.org/document/10816328/
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author Brandon Liew Yi Quan
Nur Haliza Abdul Wahab
Arafat Al-Dhaqm
Ahmad Alshammari
Ali Aqarni
Shukor Abd Razak
Koh Tieng Wei
author_facet Brandon Liew Yi Quan
Nur Haliza Abdul Wahab
Arafat Al-Dhaqm
Ahmad Alshammari
Ali Aqarni
Shukor Abd Razak
Koh Tieng Wei
author_sort Brandon Liew Yi Quan
collection DOAJ
description Blockchain is a technology that has gained popularity in recent years due to its immutability and decentralized features. Various industries have started integrating this technology into their business models, resulting in the development of various types of blockchain networks. This paper reviews the latest academic advancements in sharding techniques within the various types of sharded blockchain networks implemented in the past five years to identify their strengths and weaknesses. The increasing volume of transactions in blockchain networks has caused issues in terms of scalability, transaction efficiency, storage, and security, which obstruct the global adoption of blockchain technology. Sharding in blockchain is a solution that aims to address these issues through various types of sharding techniques, such as network, transaction, or state sharding, along with the various types of networks and systems. The general definition of sharding is the partitioning of the network into subsets known as shards, which allows them to validate transactions in parallel, resulting in performance and scalability improvements of the existing network. The existing sharding techniques (before 2020) and the latest sharding techniques (2020–2024), along with their characteristics, advantages, and disadvantages, are also discussed. An analysis based on the performance evaluation of recent sharding techniques was conducted to further understand the impact of these techniques. The result of the review provides critical insights into the advancements in sharding techniques and fosters innovation while facilitating the widespread adoption of sharding-based solutions in the blockchain ecosystem.
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spelling doaj-art-c7f6b07e23994c8a88019c5ee4fa737f2025-02-05T00:00:58ZengIEEEIEEE Access2169-35362025-01-0113213352136610.1109/ACCESS.2024.352325610816328Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A ReviewBrandon Liew Yi Quan0https://orcid.org/0009-0002-0741-5930Nur Haliza Abdul Wahab1https://orcid.org/0000-0001-9193-9475Arafat Al-Dhaqm2Ahmad Alshammari3https://orcid.org/0009-0000-2051-2757Ali Aqarni4https://orcid.org/0009-0004-0830-8787Shukor Abd Razak5https://orcid.org/0000-0002-8824-6069Koh Tieng Wei6https://orcid.org/0009-0001-1938-1275Faculty of Computing, Universiti Teknologi Malaysia, Skudai, Johor, MalaysiaFaculty of Computing, Universiti Teknologi Malaysia, Skudai, Johor, MalaysiaSchool of Computer Science (SCS), Taylor’s University, Subang Jaya, MalaysiaDepartment of Computer Sciences, Faculty of Computing and Information Technology, Northern Border University, Rafha, Kingdom of Saudi ArabiaDepartment of Computer Science, College of Computing and Information Technology, University of Bisha, Bisha, Saudi ArabiaFaculty of Informatics and Computing, Universiti Sultan Zainal Abidin, Terengganu, MalaysiaCentre for Cyber-Physical Systems (C2PS), Institute of Digital Emerging Technology, Universiti Teknologi PETRONAS, Seri Iskandar, Perak, MalaysiaBlockchain is a technology that has gained popularity in recent years due to its immutability and decentralized features. Various industries have started integrating this technology into their business models, resulting in the development of various types of blockchain networks. This paper reviews the latest academic advancements in sharding techniques within the various types of sharded blockchain networks implemented in the past five years to identify their strengths and weaknesses. The increasing volume of transactions in blockchain networks has caused issues in terms of scalability, transaction efficiency, storage, and security, which obstruct the global adoption of blockchain technology. Sharding in blockchain is a solution that aims to address these issues through various types of sharding techniques, such as network, transaction, or state sharding, along with the various types of networks and systems. The general definition of sharding is the partitioning of the network into subsets known as shards, which allows them to validate transactions in parallel, resulting in performance and scalability improvements of the existing network. The existing sharding techniques (before 2020) and the latest sharding techniques (2020–2024), along with their characteristics, advantages, and disadvantages, are also discussed. An analysis based on the performance evaluation of recent sharding techniques was conducted to further understand the impact of these techniques. The result of the review provides critical insights into the advancements in sharding techniques and fosters innovation while facilitating the widespread adoption of sharding-based solutions in the blockchain ecosystem.https://ieeexplore.ieee.org/document/10816328/Shardingblockchain networksreviewscalability
spellingShingle Brandon Liew Yi Quan
Nur Haliza Abdul Wahab
Arafat Al-Dhaqm
Ahmad Alshammari
Ali Aqarni
Shukor Abd Razak
Koh Tieng Wei
Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review
IEEE Access
Sharding
blockchain networks
review
scalability
title Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review
title_full Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review
title_fullStr Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review
title_full_unstemmed Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review
title_short Recent Advances in Sharding Techniques for Scalable Blockchain Networks: A Review
title_sort recent advances in sharding techniques for scalable blockchain networks a review
topic Sharding
blockchain networks
review
scalability
url https://ieeexplore.ieee.org/document/10816328/
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