Improvement of Available Bitrate Streaming in Content-Delivery Networks (CDNs)

Nader F. Mir, Han W. Shih, Bojun Liu, Venkata S. Viswanatha, and Kamal M. Shaik


In this paper, we present a technique through which the performance of video Adaptive Bitrate Streaming (ABS) is improved. Video providers and Content Delivery Networks (CDNs) use ABS quite often. ABS is an advanced HTTP-based technology which keeps the advantages of HTTP. An adaptive bit rate streaming traffic is first examined with an improved technique for the network using network simulator. Jitter and delay are the primary focus of the analysis when multiple rates are used in a test bed. Jitter and delay are in particular analyzed for video streaming in the presence of background traffic and used for comparison. The aim of this paper is also to analyze the end-to-end delay, throughput and loss of packets in the network that are part of the content delivery network of cloud systems. Multimedia traffic is transmitted at different bitrates starting from 30kbps, 55kbps to 120kbps. The network's performance is improved and enhanced by implementing a type of traffic shaping a technique by prioritizing and smoothening the multimedia traffic. Two different network simulators are used to implement the idea presented in this paper. The simulation involves study, analysis and comparison of performance in network with traffic shaping and without traffic shaping.

Type of Paper: Empirical.

Keywords: Video Streaming; Cloud System; Adaptive Bitrate Streaming (ABS); Content Delivery Network (CDN).

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