Evaluation of RoCE Protocol in Backhaul Systems for Ultra-High-Speed THz Wireless LAN

In advancing society, large-capacity and high-speed communication network, to handle rich contents like ultra-high-definition video and large-capacity sensing information, is becoming important. Accomplishing these demands needs an ultrawide bandwidth wireless Local Area Network (LAN). Improvements in wireless transmission speeds are expected with the development of ultra-high-speed wireless technology such as terahertz (THz) communication. However, the rapid growth of ultra-high-speed wireless network technology places a considerable strain on the backhaul network. Therefore, improvements in wired network technology are indispensable to achieve higher speeds. We investigated RDMA technology used in data centers to speed up in THz wireless LAN. This paper presents the construction of a backhaul system to connect a network coordinator and interconnected access points. It also reports evaluation results of the proposed system, including a comparative analysis concerning RoCE, TCP, and UDP. Furthermore, the effect of switching processing on the overall throughput.