Federated learning and next generation wireless communications: A survey on bidirectional relationship. Issue 7 (12th February 2022)

• Record Type: Journal Article
• Authors: Shome, Debaditya; Waqar, Omer; Khan, Wali Ullah
• Is Part Of: Transactions on emerging telecommunications technologies. Volume 33:Issue 7(2022)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2022-02-12
• Subjects: Telecommunication -- Periodicals; 384.05
• DOI: 10.1002/ett.4458
• Languages: English
• ISSNs: 2161-5748

Abstract

Abstract: In order to meet the extremely heterogeneous requirements of the next generation wireless communication networks, research community is increasingly dependent on using machine‐learning solutions for real‐time decision‐making and radio resource management. Traditional machine learning employs fully centralized architecture in which the entire training data is collected at one node for example, cloud server, that significantly increases the communication overheads and also raises severe privacy concerns. Toward this end, a distributed machine‐learning paradigm termed as federated learning (FL) has been proposed recently. In FL, each participating edge device trains its local model by using its own training data. Then, via the wireless channels the weights or parameters of the locally trained models are sent to the central parameter server (PS), that aggregates them and updates the global model. On one hand, FL plays an important role for optimizing the resources of wireless communication networks, on the other hand, wireless communications is crucial for FL. Thus, a "bidirectional" relationship exists between FL and wireless communications. Although FL is an emerging concept, many publications have already been published in the domain of FL and its applications for next generation wireless networks. Nevertheless, we noticed that none of the works have highlighted the bidirectional relationship between FL and wireless communications. Therefore, the purpose of this survey article is to bridge this gap in literature by providing a timely and comprehensive discussion on the interdependency between FL and wireless communications. Abstract : Federated learning (FL) is an emerging distributed learning paradigm and it also finds its applications for the next generation communication systems. Moreover, the performance of the FL depends on the underlying wireless channels, thus establishes a "bidirectional" relationship between the FL and the wireless systems. In this survey article, we provide a comprehensive discussion that highlights this important "bidirectional" relationship between the two scientific fields.