DocumentCode :
2385576
Title :
Video capacity and QoE enhancements over LTE
Author :
Singh, Sarabjot ; Oyman, Ozgur ; Papathanassiou, Apostolos ; Chatterjee, Debdeep ; Andrews, Jeffrey G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
fYear :
2012
fDate :
10-15 June 2012
Firstpage :
7071
Lastpage :
7076
Abstract :
Quality of Experience (QoE) has taken a center stage in the performance evaluation of multimedia delivery technologies. The Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) system is the latest generation of wireless cellular technology expected to deliver higher data rates and meet the burgeoning data demand. With the projected dominant share of video services in mobile traffic, providing satisfactory QoE to video users is a key objective for LTE system design. In this paper, we present a QoE-based evaluation methodology to assess the LTE system video capacity in terms of the number of unicast video consumers that can be simultaneously supported for a given target QoE. We define and use the notion of rebuffering outage capacity to quantify the video service capacity. Our evaluation further incorporates adaptive streaming, a promising technology for video delivery over wireless, and presents its consequent QoE-capacity tradeoff. The impact of QoE-based outage criteria is also investigated on the downlink video capacity. Finally, we propose a QoE-aware radio resource management (RRM) framework which allows the network operator to further enhance the video capacity. Our results demonstrate that there is a significant potential to optimize video capacity through QoE awareness both at the application level and radio access network (RAN) level.
Keywords :
3G mobile communication; Long Term Evolution; mobility management (mobile radio); performance evaluation; radio access networks; telecommunication traffic; video streaming; 3GPP LTE system; LTE; Long Term Evolution system; QoE enhancements; QoE-aware RRM framework; QoE-aware radio resource management framework; QoE-based evaluation methodology; QoE-based outage criteria; RAN level; adaptive streaming; burgeoning data demand; data rates; mobile traffic; multimedia delivery technologies; performance evaluation; quality of experience enhancements; radio access network level; rebuffering outage capacity; third generation partnership project system; unicast video consumers; video delivery; video service capacity; video services; video users; wireless cellular technology; Bit rate; Downlink; PSNR; Resource management; Streaming media; Throughput;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications (ICC), 2012 IEEE International Conference on
Conference_Location :
Ottawa, ON
ISSN :
1550-3607
Print_ISBN :
978-1-4577-2052-9
Electronic_ISBN :
1550-3607
Type :
conf
DOI :
10.1109/ICC.2012.6364806
Filename :
6364806
Link To Document :
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