Performance Evaluation on Concurrent Connecting QUIC and TCP Nodes over Wireless LAN

In IEEE 802.11g wireless LAN, the performance of TCP parallel connections has been evaluated, and the condition that the total throughput is saturated has also been investigated to some extent. On the other hand, QUIC (Quick UDP Internet Connections), which is being in the final review process of standardization, is a new transport layer protocol that re-implements congestion control and retransmission control similar to TCP in the user space on UDP instead of the kernel space. Since it is a relatively new protocol, there are many environments where its performance has not been evaluated. In this paper, we evaluate the conditions in terms of the number of concurrent connecting nodes to obtain the highest total throughput on an IEEE 802.11g network. In addition, congestion control version, CUBIC, Reno, delay and packet loss ratio are taken into account. As a result, it was confirmed that QUIC and TCP can achieve the same level of throughput, and the influence of delay and packet loss ratio on the performance in the wireless LAN was clarified, as well as the fairness among concurrent connecting nodes.