Resource Allocation for Compression-aided Federated Learning with High Distortion Rate

• URL: http://arxiv.org/abs/2206.06976v1
• Date: Thu, 2 Jun 2022 05:00:37 GMT
• Title: Resource Allocation for Compression-aided Federated Learning with High Distortion Rate
• Authors: Xuan-Tung Nguyen, Minh-Duong Nguyen, Quoc-Viet Pham, Vinh-Quang Do, Won-Joo Hwang
• Abstract summary: We formulate an optimization-aided FL problem between the distortion rate, number of participating IoT devices, and convergence rate. By actively controlling participating IoT devices, we can avoid the training divergence of compression-aided FL while maintaining the communication efficiency.
• Score: 3.7530276852356645
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recently, a considerable amount of works have been made to tackle the communication burden in federated learning (FL) (e.g., model quantization, data sparsification, and model compression). However, the existing methods, that boost the communication efficiency in FL, result in a considerable trade-off between communication efficiency and global convergence rate. We formulate an optimization problem for compression-aided FL, which captures the relationship between the distortion rate, number of participating IoT devices, and convergence rate. Following that, the objective function is to minimize the total transmission time for FL convergence. Because the problem is non-convex, we propose to decompose it into sub-problems. Based on the property of a FL model, we first determine the number of IoT devices participating in the FL process. Then, the communication between IoT devices and the server is optimized by efficiently allocating wireless resources based on a coalition game. Our theoretical analysis shows that, by actively controlling the number of participating IoT devices, we can avoid the training divergence of compression-aided FL while maintaining the communication efficiency.

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