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This post will analyze the streaming methods used in YouTube's Live TV streaming services for mobile devices in an LTE network and a Wi-Fi network based on our actual measurements. YouTube's Live TV Streaming in Mobile Devices: HLS & Adaptive First, measurements in an LTE network The mobile device and network used for our measurement were Galaxy S4 and KT LTE network. First,...
10/30/2013
61,766
Recently, YouTube has changed/evolved the way it delivers video contents. It used to be a big fan of HTTP progressive download (downloading a video file by a single request just like downloading a data file) until last year. However, from this year, many efforts have been made by YouTube (e.g. switching to chunking and adaptive streaming) for improved video delivery. We will focus on "switching...
10/04/2013
53,906
SK Telecom, the Korean No. 1 telecom operator, launched Btv Mobile service (in SD/HD) offering a variety of live broadcasting and VoD contents for mobile devices in around July 2012. And a year later in July 2013, boosted by the commercialization of LTE-A, it began a "Full HD" streaming service with drastically enhanced video quality. The following is the press release by SK Telecom about its n...
09/24/2013
59,776
SK Telecom, the Korean No. 1 telecom operator, launched Btv Mobile service (in SD/HD) offering a variety of live broadcasting and VoD contents for mobile devices in around July 2012. And a year later in July 2013, boosted by the commercialization of LTE-A, it began a "Full HD" streaming service with drastically enhanced video quality. The following is the press release by SK Telecom about its n...
09/24/2013
59,186
In our previous post (Analysis of LG U+'s HDTV Streaming (LG U+ HDTV Service based on LTE-A), we discussed how LG U+ Mobile U+ HDTV service delivers video files to a device. Our first actual measurement confirmed that LG U+: used HLS, Apple's adaptive streaming (delivering video files chunkwise, unlike progressive download or RTMP/RTSP); and offered three profiles (quality levels)...
09/09/2013
32,121
On June 10, 2013, LG U+ launched U+ HDTV multi-channel service (U+ tv G 4 Channel Service) that enables users to watch 4 channels at the same time through home STB. Later in July, it introduced the same multi-channel service in a mobile version based on LTE-A. In this post, we will analyze the U+ HDTV streaming on mobile devices that support LTE-A. U+ HDTV service offers two viewing experi...
08/19/2013
54,074
Table of Contents Success of Over-The-Top (OTT) Service Providers and Trouble of Operators Qwilt Universal Video Delivery Solution Qwilt Caching Logic All-in-One System Network Performance and Stability (Passive Monitoring and Redirect Architecture) Edge Deployment Transparent Caching and ABR - Handling Performance Transparent Caching and ABR - Efficiency...
05/20/2013
47,671
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