Paper Info
Title
Mobile HTTP-based streaming using flexible LTE base station control
Abstract
This paper investigates the advantage of adopting a flexible resource control scheme when performing HTTP-based adaptive streaming across LTE systems. To guarantee video fluidity, mobile video streaming is known to require a large bandwidth overhead with respect to the net encoded video rate. The quality of a received video stream is impacted by variations in the size of the transmitted video packets (chunks), and by statistical fluctuations in the data rate at which the allocated downstream wireless channel operates. First, in considering an illustrative video scenario, we show that the chunk size distribution is heavy-tailed, and is well fit by a Gamma distribution. Second, we employ a HAS based proxy video manager and resource controller at the base station node. Based on the channel quality observed and reported by a mobile client, the manager selects the proper channel bandwidth and data rate levels at which to transmit the stream's chunks, in accordance with the selected encoded video rate and the configured Quality of Experience (QoE) level at which the user is targeted to receive the video stream.The communications data rate is also set to assure an acceptable low video reception stall probability. To illustrate the performance of such a dynamic bandwidth allocation scheme, we compare it with an operation that employs a stationary setting of the channel bandwidth, and we compute the gain achieved when such adaptations are performed at the base station node on a chunk by chunk basis. We show by analysis, and confirm by simulations, the improvements achieved in the system's performance behavior through the use of the adaptive resource allocation scheme.
Year
DOI
Venue
2015
10.1109/WoWMoM.2015.7158123
2015 IEEE 16th International Symposium on A World of Wireless, Mobile and Multimedia Networks (WoWMoM)
Keywords
Field
DocType
flexible LTE base station control,flexible resource control scheme,mobile HTTP-based adaptive video streaming,wireless channel,chunk size distribution,Gamma distribution,HAS based proxy video manager,quality of experience,QoE,dynamic bandwidth allocation scheme,adaptive resource allocation scheme
Base station,Computer science,Bandwidth allocation,Network packet,Communication channel,Computer network,Real-time computing,Bandwidth (signal processing),Resource allocation,Dynamic bandwidth allocation,Channel capacity
Conference
Citations 
PageRank 
References 
8
0.55
12
Authors
5
Name
Order
Citations
PageRank
Izhak Rubin125523.98
Stefania Colonnese213726.43
Francesca Cuomo367454.36
Federica Calanca480.55
Tommaso Melodia54398290.59