Improving Quality of Service for Video Streaming Applications in Multi-Radio Wireless Mesh Networks Based on CLO and MDC
Chunyan Yang, Cong Lin, Yating Su · 2024
This paper mainly focuses on improving the quality of service for video streaming applications in multi-radio wireless mesh networks (WMN), which is a significant challenge. WMN is designed to connect all kinds of networks to the Internet. However, network load balancing becomes a key research issue due to the high traffic density from the client network to the gateway. To address this problem, we propose a cross-layer optimization technique that exploits multi-path routing and load-balancing mechanisms. This technique makes full use of the advantages of multiple radio modules and optimizes the utilization of network resources through multi-path routing. In addition, the dynamic and shared nature of wireless media adds complexity to the quality of the service task of supporting video streaming applications. In this paper's experiment, we use an excellent video transmission technology, MDC (Multiple Description Coding) technology, which is especially suitable for video transmission when the channel element changes unpredictably. When calculating multiple paths, we mainly choose passive interference and delay sensing (PIDA) as indicators and combine MDC to perform load balancing techniques to optimize network performance and improve reliability. To achieve this goal, we use Ad hoc on-demand multi-path Distance Vector (AOMDV) routing protocol in the NS2 simulator. Simulation results show that our proposed technology performs better in terms of PSNR (peak signal-to-noise ratio), frame delay, and frame loss than the prior art and can provide higher-quality services for video streaming applications.