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- The evolution to 6G networks introduces challenges in implementing federated learning due to scalability issues.
- IOTA emerges as a key player in 6G’s transformative architecture by employing a hierarchical federated learning network for optimized communication and secure data sharing.
The evolution to 6G mobile communication networks promises a paradigm shift, ushering in a new era of seamless connectivity, intelligent applications, and the realization of the Internet of Everything. However, the complex and expansive nature of 6G networks poses challenges, particularly in implementing federated learning—a crucial aspect for the development of endogenous intelligence.
While federated learning addresses the operational bottlenecks of centralized intelligence and preserves user privacy, its scalability in large-scale 6G scenarios becomes a concern. The increasing number of user groups and the scale of models lead to significant communication losses, rendering federated learning impractical in real-world scenarios.
Enter blockchain—a disruptive technology that has emerged as a beacon of hope for enhancing the security architecture of 6G networks. Offering characteristics like distribution, transparency, and anonymity, blockchain establishes collaborative trust among network entities, enabling efficient resource sharing, secure data interaction, and trusted access control in wireless networks. It also addresses concerns related to privacy protection, data tracking, identity authentication, and information supervision.
However, blockchain faces its own performance challenges, mainly low transaction throughput. To address this, two strategies are commonly employed: off-chain settlement and multi-chain sharding. The former writes transactions to the chain only when necessary, while the latter uses sharding technology to improve throughput but adds complexity to global consensus.
IOTA’s Blockchain Integration Paves the Way for 6G Security
IOTA’s revolutionary impact on 6G is reshaping the landscape! With its pioneering contributions to large-scale federated learning, optimization of network efficiency, and the establishment of secure, dependable data sharing, IOTA stands as the cornerstone of 6G’s transformative architecture.
A breakthrough comes with the application of an improved IOTA consensus algorithm, designed for the sharded chain. This algorithm enhances the evaluation process during model propagation, replacing the traditional Proof-of-Work (PoW) to prevent spam information from infiltrating the chain.
IOTA’s approach includes the use of a hierarchical federated learning network architecture, where the main chain integrates with shard chains. The architecture encompasses edge layers formed by devices at the access end, each divided into clusters that create sharding chains. Local models receive training based on global model parameters and shared within each shard chain, promoting efficient aggregation at the central layer. Blockchain researcher Collin Brown explains:
The invention aims to enhance 6G network efficiency by optimizing federated learning models, reducing communication losses, and ensuring secure, reliable data sharing and processing in complex, heterogeneous network environments.
To further optimize the 6G federated learning efficiency model, closed optimal solutions for different model sharding strategies are obtained. This approach reduces communication loss and enhances learning efficiency by aggregating local models at the cluster level before transmitting them to the central layer.