Performance analysis of topologies for Web-based Real-Time Communication (WebRTC)

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Sähkötekniikan korkeakoulu | Master's thesis
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Date

2013-08-30

Department

Department of Communication and Networking

Major/Subject

Networking Technology

Mcode

S3029

Degree programme

TLT - Master’s Programme in Communications Engineering

Language

en

Pages

87+8

Series

Abstract

Real-time Communications over the Web (WebRTC) is being developed to be the next big improvement for rich web applications. This enabler allow developers to implement real-time data transfer between browsers by using high level Application Programing Interfaces (APIs). Running real-time applications in browsers may lead to a totally new scenario regarding usability and performance. Congestion control mechanisms may influence the way this data is sent and metrics such as delay, bit rate and loss are now crucial for browsers. Some mechanisms that have been used in other technologies are implemented in those browsers to handle the internals of WebRTC adding complexity to the system but hiding it from the application developer. This new scenario requires a deep study regarding the ability of browsers to adapt to those requirements and to fulfill all the features that are enabled. We investigate how WebRTC performs in a real environment running over an current web application. The capacity of the internal mechanisms to adapt to the variable conditions of the path, consumption resources and rate. Taking those principles, we test a range of topologies and use cases that can be implemented with the current version of WebRTC. Considering this scenario we divide the metrics in two categories, host and network indicators. We compare the results of those tests with the expected output based on the defined protocol in order to evaluate the ability to perform real-time media communication over the browser.

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Supervisor

Ott, Jörg

Thesis advisor

Varun, Singh

Keywords

internet, WebRTC, real-time communication, network topologies, performance analysis, congestion control, browsers, HTML5

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https://urn.fi/URN:NBN:fi:aalto-201310157702

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[dipl] Sähkötekniikan korkeakoulu / ELEC