A Comparative Study of Codel and Adaptive Codel AQM Mechanism for Video Optimization

Video data forms the major traffic in today’s internet. Quality Of internet video has a great impact on user engagement. Video encoding and streaming over wireless networks become a big concern. Real time video service requires low end-to-end delay, which mainly consists of video encoding delay, queuing delay, and transmission delay. The major concern is to reduce the queuing delay which has high impact on the video quality. Bufferbloat is one of the main reasons for experiencing high queue latency at the intermediate nodes. Several AQM techniques were used in reducing queue latency, but optimization of buffer size is never achieved. In this work, a comparative study between the CoDel and Adaptive CoDel and their effectiveness of reducing the queuing delay to increase the network bandwidth utilization for video streams which will result in better quality of video are discussed briefly.