Intelligent Stale-Frame Discards for Real-Time Video Streaming over Wireless Ad Hoc Networks

Intelligent Stale-Frame Discards for Real-Time Video Streaming over Wireless Ad Hoc Networks

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Abstract This paper presents intelligent early packet discards (I-EPD) for real-time video streaming over a multihop wireless ad hoc network.In a multihop wireless ad hoc network, the quality of transferring real-time video streams could be seriously degraded, since every intermediate node (IN) functionally like relay device does not possess large buffer and sufficient bandwidth.Even worse, a selected relay node could leave or power off unexpectedly, which breaks the route to destination.

Thus, a stale video click here frame is useless even if it can reach destination after network traffic becomes smooth or failed route is reconfigured.In the proposed I-EPD, an IN can intelligently determine whether a buffered video packet should be early discarded.For the purpose of validation, we implement the I-EPD on Linux-based embedded systems.

Via the comparisons of performance metrics (packet/frame discards ratios, PSNR, etc.), we demonstrate that video quality sukrensi.com over a wireless ad hoc network can be substantially improved and unnecessary bandwidth wastage is greatly reduced.