arXiv:2409.11240cs.LGcs.DC2024-09被引 2

6G时代联邦学习新框架,兼顾感知通信计算,提升效率降低能耗。

Federated Learning with Integrated Sensing, Communication, and Computation: Frameworks and Performance Analysis

  • 构建通用联邦学习与感知通信计算融合框架,支持两种主流算法。
  • 非独立同分布数据下FedSGD-ISCC更稳健,通信错误时性能下降更少。
  • 多轮本地训练在非独立同分布数据中反而拖累性能,需谨慎设计。

随着6G时代集成感知、通信与计算(ISCC)技术的兴起,融合样本采集、本地训练与参数交换聚合的联邦学习-集成感知通信计算(FL-ISCC)受到越来越多关注,有助于提升训练效率。当前,FL-ISCC主要包括两种算法:FedAVG-ISCC与FedSGD-ISCC。然而,对这些算法性能与优势的理论理解仍不充分。为此,本文研究了一个通用的FL-ISCC框架,实现并对比了两种算法。实验表明,ISCC框架在降低延迟和能耗方面具有显著潜力。理论分析与比较结果显示:1)样本采集与通信误差均会负面影响算法性能,凸显优化设计的重要性;2)在独立同分布(IID)数据下,由于可进行多轮本地更新,FedAVG-ISCC表现优于FedSGD-ISCC;3)在非独立同分布(non-IID)数据下,因多轮本地更新加剧了数据异构性影响,FedAVG-ISCC性能下降,而FedSGD-ISCC保持接近IID水平的稳定性;4)在通信误差增加时,FedSGD-ISCC更具鲁棒性,而FedAVG-ISCC性能显著退化。大量仿真验证了该框架的有效性及理论分析的正确性。

原文摘要 · Abstract (English)

With the emergence of integrated sensing, communication, and computation (ISCC) in the upcoming 6G era, federated learning with ISCC (FL-ISCC), integrating sample collection, local training, and parameter exchange and aggregation, has garnered increasing interest for enhancing training efficiency. Currently, FL-ISCC primarily includes two algorithms: FedAVG-ISCC and FedSGD-ISCC. However, the theoretical understanding of the performance and advantages of these algorithms remains limited. To address this gap, we investigate a general FL-ISCC framework, implementing both FedAVG-ISCC and FedSGD-ISCC. We experimentally demonstrate the substantial potential of the ISCC framework in reducing latency and energy consumption in FL. Furthermore, we provide a theoretical analysis and comparison. The results reveal that:1) Both sample collection and communication errors negatively impact algorithm performance, highlighting the need for careful design to optimize FL-ISCC applications. 2) FedAVG-ISCC performs better than FedSGD-ISCC under IID data due to its advantage with multiple local updates. 3) FedSGD-ISCC is more robust than FedAVG-ISCC under non-IID data, where the multiple local updates in FedAVG-ISCC worsen performance as non-IID data increases. FedSGD-ISCC maintains performance levels similar to IID conditions. 4) FedSGD-ISCC is more resilient to communication errors than FedAVG-ISCC, which suffers from significant performance degradation as communication errors increase.Extensive simulations confirm the effectiveness of the FL-ISCC framework and validate our theoretical analysis.

联邦学习6GISCC性能分析

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