Intelligent communication is gradually considered as the mainstream direction
in future wireless communications. As a major branch of machine learning, deep
learning (DL) has been applied in physical layer communications and has
demonstrated an impressive performance improvement in recent years. However,
most of the existing works related to DL focus on data-driven approaches, which
consider the communication system as a black box and train it by using a huge
volume of data. Training a network requires sufficient computing resources and
extensive time, both of which are rarely found in communication devices. By
contrast, model-driven DL approaches combine communication domain knowledge
with DL to reduce the demand for computing resources and training time. This
article reviews the recent advancements in the application of model-driven DL
approaches in physical layer communications, including transmission scheme,
receiver design, and channel information recovery. Several open issues for
further research are also highlighted after presenting the comprehensive
survey.

该文章回顾了最近在物理层通信中使用模型驱动深度学习方法的应用，包括传输方案、接收机设计和信道信息恢复，并在展示全面调查后，提出了若干进一步研究的开放问题。