Research Review and Prospect of Power Line Communication Technology Based on Collaborative Communication

In order to meet the requirements of high reliability, high throughput and flexible access of the Internet of Things and smart grid, power line and wireless collaborative communication technology has attracted wide attention. Through the design and optimization of multi-media parallel communication or relay forwarding technology, the comprehensive performance of the communication system can be enhanced from different angles. Based on this, the existing research on power line and wireless collaborative communication is sorted out, and the existing research is summarized from the main directions of physical layer technology, medium access control (MAC) layer protocol, hardware design and communication standard, and the existing problems and development ideas are analyzed. Finally, the future development direction is discussed from five aspects: relay system performance analysis, relay machine learning optimization processing, multi-mode communication MAC access mechanism, cross-layer design of relay system, perception and communication collaboration.