MetaShard: a novel sharding blockchain platform for metaverse applications
Due to its security, transparency, and flexibility in verifying virtual assets, blockchain has been identified as one of the key technologies for Metaverse. Unfortunately, blockchain-based Metaverse faces serious challenges such as massive resource demands, scalability, and security/privacy concerns...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2023
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/171803 |
| _version_ | 1811690213213208576 |
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| author | Nguyen, Cong T. Hoang, Dinh Thai Nguyen, Diep N. Xiao, Yong Niyato, Dusit Dutkiewicz, Eryk |
| author2 | School of Computer Science and Engineering |
| author_facet | School of Computer Science and Engineering Nguyen, Cong T. Hoang, Dinh Thai Nguyen, Diep N. Xiao, Yong Niyato, Dusit Dutkiewicz, Eryk |
| author_sort | Nguyen, Cong T. |
| collection | NTU |
| description | Due to its security, transparency, and flexibility in verifying virtual assets, blockchain has been identified as one of the key technologies for Metaverse. Unfortunately, blockchain-based Metaverse faces serious challenges such as massive resource demands, scalability, and security/privacy concerns. To address these issues, this paper proposes a novel sharding-based blockchain framework, namely MetaShard, for Metaverse applications. Particularly, we first develop an effective consensus mechanism, namely Proof-of-Engagement, that can incentivize MUs' data and computing resource contribution. Moreover, to improve the scalability of MetaShard, we propose an innovative sharding management scheme to maximize the network's throughput while protecting the shards from 51% attacks. Since the optimization problem is NP-complete, we develop a hybrid approach that decomposes the problem (using the binary search method) into sub-problems that can be solved effectively by the Lagrangian method. As a result, the proposed approach can obtain solutions in polynomial time, thereby enabling flexible shard reconfiguration and reducing the risk of corruption from the adversary. Extensive numerical experiments show that, compared to the state-of-the-art commercial solvers, our proposed approach can achieve up to 66.6% higher throughput in less than 1/30 running time. Moreover, the proposed approach can achieve global optimal solutions in most experiments. |
| first_indexed | 2024-10-01T06:00:25Z |
| format | Journal Article |
| id | ntu-10356/171803 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:00:25Z |
| publishDate | 2023 |
| record_format | dspace |
| spelling | ntu-10356/1718032023-11-08T04:21:27Z MetaShard: a novel sharding blockchain platform for metaverse applications Nguyen, Cong T. Hoang, Dinh Thai Nguyen, Diep N. Xiao, Yong Niyato, Dusit Dutkiewicz, Eryk School of Computer Science and Engineering Engineering::Electrical and electronic engineering Blockchain Metaverse Due to its security, transparency, and flexibility in verifying virtual assets, blockchain has been identified as one of the key technologies for Metaverse. Unfortunately, blockchain-based Metaverse faces serious challenges such as massive resource demands, scalability, and security/privacy concerns. To address these issues, this paper proposes a novel sharding-based blockchain framework, namely MetaShard, for Metaverse applications. Particularly, we first develop an effective consensus mechanism, namely Proof-of-Engagement, that can incentivize MUs' data and computing resource contribution. Moreover, to improve the scalability of MetaShard, we propose an innovative sharding management scheme to maximize the network's throughput while protecting the shards from 51% attacks. Since the optimization problem is NP-complete, we develop a hybrid approach that decomposes the problem (using the binary search method) into sub-problems that can be solved effectively by the Lagrangian method. As a result, the proposed approach can obtain solutions in polynomial time, thereby enabling flexible shard reconfiguration and reducing the risk of corruption from the adversary. Extensive numerical experiments show that, compared to the state-of-the-art commercial solvers, our proposed approach can achieve up to 66.6% higher throughput in less than 1/30 running time. Moreover, the proposed approach can achieve global optimal solutions in most experiments. 2023-11-08T04:21:27Z 2023-11-08T04:21:27Z 2023 Journal Article Nguyen, C. T., Hoang, D. T., Nguyen, D. N., Xiao, Y., Niyato, D. & Dutkiewicz, E. (2023). MetaShard: a novel sharding blockchain platform for metaverse applications. IEEE Transactions On Mobile Computing. https://dx.doi.org/10.1109/TMC.2023.3290955 1536-1233 https://hdl.handle.net/10356/171803 10.1109/TMC.2023.3290955 2-s2.0-85163425604 en IEEE Transactions on Mobile Computing © 2023 IEEE. All rights reserved. |
| spellingShingle | Engineering::Electrical and electronic engineering Blockchain Metaverse Nguyen, Cong T. Hoang, Dinh Thai Nguyen, Diep N. Xiao, Yong Niyato, Dusit Dutkiewicz, Eryk MetaShard: a novel sharding blockchain platform for metaverse applications |
| title | MetaShard: a novel sharding blockchain platform for metaverse applications |
| title_full | MetaShard: a novel sharding blockchain platform for metaverse applications |
| title_fullStr | MetaShard: a novel sharding blockchain platform for metaverse applications |
| title_full_unstemmed | MetaShard: a novel sharding blockchain platform for metaverse applications |
| title_short | MetaShard: a novel sharding blockchain platform for metaverse applications |
| title_sort | metashard a novel sharding blockchain platform for metaverse applications |
| topic | Engineering::Electrical and electronic engineering Blockchain Metaverse |
| url | https://hdl.handle.net/10356/171803 |
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