Paper Info
Title
Using link awareness for HTTP Adaptive Streaming over changing wireless conditions
Abstract
We address the problem of delivering streaming video over changing wireless conditions in the context of HTTP Adaptive Streaming (HAS) systems, such as those based on the Dynamic Adaptive Streaming over HTTP (DASH) standard. In HAS, the video client plays the primary role in rate adaptation unlike server controlled video delivery systems. Performance of adaptive streaming over rapidly changing wireless conditions degrades due to the slower time-scale of response at the application layer compared to the time scale of changing radio link conditions. We propose a novel physical layer aware video rate adaptation strategy for HAS systems in which the HAS client uses physical layer modem statistics as a complement to application layer throughput estimate to enable quick identification and response to changing radio link conditions. This novel HAS rate adaptation algorithm includes a "Replace Request" feature wherein the HAS client can replace a current video segment request at the HAS server under suitable conditions. We demonstrate improved video streaming performance of our approach through simulations on a 3GPP LTE (Long Term Evolution) system level simulator.
Year
DOI
Venue
2015
10.1109/ICCNC.2015.7069436
Computing, Networking and Communications
Keywords
Field
DocType
3g mobile communication,long term evolution,video streaming,3gpp lte,dash,has server,http adaptive streaming,long term evolution system level simulator,application layer,changing wireless conditions,dynamic adaptive streaming over http,link awareness,physical layer aware video rate adaptation strategy,physical layer modem statistics,radio link conditions,replace request feature,server controlled video delivery systems,streaming video,video client,video segment request,video streaming performance,http adaptive streaming (has),cross-layer,video rate adaptation,radio link,bandwidth,nickel,wireless communication,physical layer,throughput
Link awareness,Application layer,Wireless,Computer science,Computer network,Real-time computing,Dynamic Adaptive Streaming over HTTP,Bandwidth (signal processing),Physical layer,Throughput,Radio Link Protocol
Conference
Citations 
PageRank 
References 
3
0.43
7
Authors
3
Name
Order
Citations
PageRank
Vishwanath Ramamurthi1888.85
Ozgur Oyman234923.14
Jeffrey Foerster3652.98