Edge-Native Intelligence for 6G Communications Driven by Federated Learning: A Survey of Trends and Challenges

• URL: http://arxiv.org/abs/2111.07392v1
• Date: Sun, 14 Nov 2021 17:13:34 GMT
• Title: Edge-Native Intelligence for 6G Communications Driven by Federated Learning: A Survey of Trends and Challenges
• Authors: Mohammad Al-Quraan, Lina Mohjazi, Lina Bariah, Anthony Centeno, Ahmed Zoha, Sami Muhaidat, M\'erouane Debbah, and Muhammad Ali Imran
• Abstract summary: A new technique, coined as federated learning (FL), arose to bring machine learning to the edge of wireless networks. FL exploits both decentralised datasets and computing resources of participating clients to develop a generalised ML model without compromising data privacy. The purpose of this survey is to provide an overview of the state-of-the-art of FL applications in key wireless technologies.
• Score: 14.008159759350264
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The unprecedented surge of data volume in wireless networks empowered with artificial intelligence (AI) opens up new horizons for providing ubiquitous data-driven intelligent services. Traditional cloud-centric machine learning (ML)-based services are implemented by collecting datasets and training models centrally. However, this conventional training technique encompasses two challenges: (i) high communication and energy cost due to increased data communication, (ii) threatened data privacy by allowing untrusted parties to utilise this information. Recently, in light of these limitations, a new emerging technique, coined as federated learning (FL), arose to bring ML to the edge of wireless networks. FL can extract the benefits of data silos by training a global model in a distributed manner, orchestrated by the FL server. FL exploits both decentralised datasets and computing resources of participating clients to develop a generalised ML model without compromising data privacy. In this article, we introduce a comprehensive survey of the fundamentals and enabling technologies of FL. Moreover, an extensive study is presented detailing various applications of FL in wireless networks and highlighting their challenges and limitations. The efficacy of FL is further explored with emerging prospective beyond fifth generation (B5G) and sixth generation (6G) communication systems. The purpose of this survey is to provide an overview of the state-of-the-art of FL applications in key wireless technologies that will serve as a foundation to establish a firm understanding of the topic. Lastly, we offer a road forward for future research directions.

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