MPQUIC Transmission Control Strategy for SDN-Based Satellite Network

The combination of Software-defined networking and multipath transmission technology can enhance the transmission efficiency of satellite networks. However, the current SDN controller does not support the emerging multipath QUIC protocol, and the routing algorithm based on minimum hop count is inadequate for meeting the demands of high real-time business. To address these issues, this study designs and implements an SDN controller that supports MPQUIC protocol, and proposes a routing algorithm based on multi-objective optimization. This algorithm not only ensures the transmission throughput, but also selects links with lower propagation delays to improve overall transmission efficiency. The performance of the proposed solution is validated through satellite network simulation. The experimental results demonstrate that the proposed solution can enhance network throughput and reduce link delay in MPQUIC data flow transmission.