Paper Info
Title
A Rate Adaptation Solution for Distance Education System over HTTP Streaming
Abstract
Adaptive streaming over Hyper-Text Transport Protocol (HTTP) is gradually being adopted by increasing network service providers. In order to combat the variable network resources, rate adaptation is adopted to meet the transmission rate of the varying network. However, being a resource-intensive application, a key research problem of rate adaptation is to make the best of bandwidth and provide a relatively stable high-quality media service. Besides, in HTTP streaming, it is difficult to differentiate between the short-term throughput changes which incurred by the TCP congestion control, and the throughput changes due to persistent bandwidth changes. Therefore, this problem becomes more challenging. In this paper, we propose a rate adaptation solution for our distance education system based on HTTP Live Streaming (HLS). Firstly, our solution adopts a bandwidth prediction algorithm based on download throughput samples, it can effectively measure the available bandwidth by dividing the segment into duration. Secondly, the solution proposes a threshold-based rate adaptation algorithm. We adopt two thresholds to design our adaptive strategy according to the predicted bandwidth, it successfully keeps our average bit rate in a higher level and gets a decent bandwidth utilization. At the same time, it provides a relatively stable video quality. Simulation results show that the proposed rate adaptation algorithm can strike a balance between bandwidth utilization and stability of video stream under a varying bandwidth condition1.
Year
DOI
Venue
2013
10.1109/HPCC.and.EUC.2013.344
HPCC/EUC
Keywords
Field
DocType
rate adaptation algorithm,rate adaptation solution,hls,hyper-text transport protocol,resource-intensive application,distance education,bandwidth prediction algorithm,varying bandwidth condition,tcp congestion control,http streaming,varying network,bandwidth utilization,network service providers,bandwidth prediction,adaptive strategy,transport protocols,adaptive streaming,video stream,threshold-based rate adaptation algorithm,distance education system,distance learning,transmission rate,media service,variable network resources,stable video quality,computer aided instruction,http live streaming,throughput,bandwidth,media,algorithm design and analysis,switches
Algorithm design,Adaptive strategies,Computer science,Computer network,Real-time computing,Bandwidth (signal processing),Spectral efficiency,Dynamic bandwidth allocation,Throughput,Video quality,Bandwidth management
Conference
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Bin Li192494.55
Qinghua Zheng21261160.88
Weizhan Zhang310118.64