DocumentCode :
1802412
Title :
An experimental evaluation of Akamai adaptive video streaming over HSDPA networks
Author :
De Cicco, Luca ; Mascolo, Saverio ; Abdallah, Chaouki T.
Author_Institution :
Dipt. di Elettrotec. ed Elettron., Politec. di Bari, Bari, Italy
fYear :
2011
fDate :
28-30 Sept. 2011
Firstpage :
13
Lastpage :
18
Abstract :
Adaptive video streaming is a relevant advancement with respect to classic progressive download streaming such as the one employed by YouTube. Building upon its content delivery network (CDN), Akamai recently started to offer High Definition (HD) adaptive video streaming using HTTP. Nowadays, not only the amount of Internet video traffic is always increasing but also the number of users accessing the Internet using wireless links. In this paper we experimentally investigate the switching algorithm employed by Akamai to implement video quality adaptation over a High Speed Downlink Data Packet Access (HSDPA) link. In order to assess the Quality of Experience we measure goodput, TCP friendliness, and video reproduction continuity. Main results are: 1) Akamai flows are not able to achieve the fair share when competing with a TCP greedy flow due to the conservativeness of the stream-switching algorithm; 2) when the link is shared with a greedy TCP connection in 50% of the experiments the video reproduction was paused for more than 19% of the experiment duration.
Keywords :
3G mobile communication; Internet; access protocols; radio links; telecommunication traffic; video streaming; Akamai adaptive video streaming; HSDPA networks; HTTP; Internet video traffic; TCP friendliness; TCP greedy flow; YouTube; classic progressive download streaming; content delivery network; high definition adaptive video streaming; high speed downlink data packet access link; quality of experience; stream-switching algorithm; video quality adaptation; video reproduction continuity; wireless links; Bandwidth; Bit rate; Heuristic algorithms; Multiaccess communication; Servers; Spread spectrum communication; Streaming media;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computer-Aided Control System Design (CACSD), 2011 IEEE International Symposium on
Conference_Location :
Denver, CO
Print_ISBN :
978-1-4577-1066-7
Electronic_ISBN :
978-1-4577-1067-4
Type :
conf
DOI :
10.1109/CACSD.2011.6044545
Filename :
6044545
Link To Document :
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