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Title of Journal: Multimed Tools Appl

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Abbravation: Multimedia Tools and Applications

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Springer US

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DOI

10.1007/s005350070046

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ISSN

1573-7721

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Modeling and evaluating IPTV applications in WiMAX

Authors: ChihPeng Lin HsingLung Chen JenqShiou Leu
Publish Date: 2012/03/18
Volume: 67, Issue: 3, Pages: 641-666
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Abstract

Internet Protocolbased Television IPTV is a digital television service which delivers television content via an IP network The rapid growth of wireless network technology in recent years has changed the way people access the Internet Adding mobility to IPTV can create a truly compelling ubiquitous service which spans different network domains and varied IPenabled terminals and devices such as settop boxes PCs and cell phones However extending IPTV service to wireless networks requires overcoming bandwidth bottlenecks and high packet loss rates Following the IEEE 80216 standard worldwide interoperability for microwave access WiMAX features high data rates and large service coverage offering a wireless broadband solution for IPTV services While previous research has focused on creating a broadband IPTV service few studies have practically evaluated IPTV applications in a wireless broadband network environment In this paper we model and evaluate a common constant bit rate CBR1 based IPTV application and an IPTV live streaming PPStreaming2 application while retrieving IPTV content via a WiMAX network We also use the NS2 simulation tool to evaluate the performance of these two IPTV applications The evaluation metrics include latency packet loss data rate and throughput statistics when the two IPTV applications are run in the WiMAX network1The simplest IPTV solution is to convey video content by CBR IPTV operators and content delivery networks relay CBR streaming content to control the demand for network capacity Broadcasters prefer CBR video as it conserves bandwidth resources but CBR delivery can degrade video quality result in higher overall demand on network capacity2PPStreaming also referred to as P2P streaming Internet TV is a network for live media streaming In principle it’s similar to BitTorrent BT in that it provides stable and smooth broadcast of TV programs to broadband users Unlike traditional streaming media PPStreaming adopts P2Pstreaming technology and supports fullscale visits with tens of thousands of simultaneous users Its client software can be used in the browser or as a standalone executable

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