Bandshaper

Background

Distribution of multimedia content through the Internet has become a trend in the present technology-aged community. Network supported multimedia applications involve many different transmission capabilities which are used to deliver content through streaming to a wide range of terminals and users are surrounded by different environments that are acting under totally different circumstances.

However, significant challenges have come as streaming media points out to corporations and individuals the limits of their information infrastructure. These limits crash against the users’ demands for smooth video, clear audio, and performance levels specified and guaranteed by contract. Various researches on Internet network protocols minimization are currently on-going to combine the transport of all types of network traffic across a single multi-service common core network. Hence, end-to-end bandwidth estimation is one of the criteria and plays an important role in providing quality of service (QoS) to users. The challenge is then to produce bandwidth management that are adaptable and efficient for varying traffic conditions.

Goal

In this research, an improved probe-rate method to measure available bandwidth called Bandshaper was proposed to cater for the scalable multimedia streaming needs. The proposed method which improves in terms of estimation accuracy and computation time are evaluated against the original technique.

Method

In our design, the probe rate model was exploited to estimate available bandwidth for an end-to-end stationary path. The objective is to develop a better and efficient bandwidth estimator for stationary end to end path as well as the platform for real-time multimedia application. The improvement of the bandwidth estimation technique are made by introducing a new parameter called fleet delay average Δ𝑎𝑣𝑔 which reduce the duration of the total fleet, 𝐷𝑇 resulting to shorter propagation delay PD and computation time CT.

Publication

P. J. Low and M. Y. Alias, “Enhanced bandwidth estimation design based on probe-rate model for multimedia network,” 2014 IEEE 2nd International Symposium on Telecommunication Technologies (ISTT), Langkawi, Malaysia, 2014, pp. 198-203, doi: 10.1109/ISTT.2014.7238204.