A QoE based routing schema for multimedia traffics using SDN
摘要
As multimedia applications continue to grow in popularity, ensuring networks deliver superior user experiences becomes increasingly vital. To optimize multimedia traffic performance, it is necessary to implement real-time modifications in response to network conditions, which directly influence the Quality of Experience (QoE). Software-Defined Networking (SDN) offers a robust framework for real-time oversight and adaptive management, adeptly addressing the dynamic needs of multimedia traffic. This study introduces a routing schema centered on QoE for multimedia traffic utilizing SDN, employing fuzzy logic to translate essential Quality of Service (QoS) parameters–such as bandwidth, latency, and packet loss–into a Mean Opinion Score (MOS). This approach allows for more adaptive and efficient routing decisions tailored to multimedia requirements. Our method, implemented in the Ryu framework, continuously monitors network conditions, selecting optimal paths to prevent congestion and enhance QoE. Experimental results demonstrate that our approach significantly enhances throughput, reduces packet loss, and mitigates network instability from frequent path updates, while achieving the highest peak signal-to-noise ratio (PSNR) and structural similarity index measure (SSIM) for video transfers compared to other methods, ensuring superior quality for multimedia traffic. This study demonstrates the potential of fuzzy logic-based routing in SDN for managing multimedia traffic, providing a robust solution for maintaining high network performance.