How can federated learning be extended and optimized for scenarios with limited communication bandwidth or high-latency networks, such as IoT devices or edge computing environments, while still preserving privacy and security?
The part „Use cases of a digital twin network“ in „Y.3090 : Digital twin network - Requirements and architecture“ at the address: https://www.itu.int/rec/T-REC-Y.3090-202202-I
Wei Yang; Wei Xiang; Yuan Yang; Peng Cheng: „Optimizing Federated Learning With Deep Reinforcement Learning for Digital Twin Empowered Industrial IoT“ https://ieeexplore.ieee.org/document/9815106
Kangde Liu, Zheng Yan, Xueqin Liang, Raimo Kantola, Chuangyue Hu: A survey on blockchain-enabled federated learning and its prospects with digital twin https://www.sciencedirect.com/science/article/pii/S2352864822001626
Selvarajan Shitharth, Hariprasath Manoharan , Achyut Shankar, et al.: Federated learning optimization: A computational blockchain process with offloading analysis to enhance security https://www.sciencedirect.com/science/article/pii/S1110866523000622
To extend and optimize federated learning for scenarios with limited communication bandwidth or high-latency networks, such as IoT devices, the following strategies can be considered:
Model Compression: Use techniques like quantization, pruning, and knowledge distillation to compress the model size before transmitting it to IoT devices. This reduces the amount of data that needs to be communicated, thus mitigating the impact of limited bandwidth.
Local Training: Allow IoT devices to perform more computation locally by training on a subset of data before transmitting model updates to the central server. This reduces the frequency of communication and minimizes the impact of high latency.
Selective Model Updates: Implement mechanisms to selectively update model parameters based on the importance of data samples on IoT devices. This reduces the amount of data transmitted during each communication round, thereby reducing bandwidth requirements.
Asynchronous Communication: Enable asynchronous communication between IoT devices and the central server to overcome high-latency networks. This allows devices to continue training locally without waiting for synchronization, improving overall efficiency.
Adaptive Learning Rate: Adjust the learning rate dynamically based on the network conditions of IoT devices. Lower the learning rate in scenarios with limited bandwidth or high latency to ensure stable convergence and efficient training.
Edge Computing: Utilize edge computing resources to preprocess data, perform initial model training, or aggregate model updates before transmitting them to the central server. This reduces the burden on IoT devices and optimizes communication.
Differential Privacy: Incorporate differential privacy techniques to protect the privacy of data on IoT devices while aggregating model updates. This ensures data security and privacy compliance in federated learning settings.
Dynamic Grouping: Dynamically group IoT devices based on their network conditions or computational capabilities to optimize communication and training efficiency. This allows for tailored optimization strategies for different device clusters.
By implementing these strategies, federated learning can be extended and optimized for scenarios with limited communication bandwidth or high-latency networks, such as IoT devices. These approaches aim to improve the efficiency, scalability, and performance of federated learning in constrained environments while ensuring data privacy and security.