Smart Caching for Supporting Video Streaming in Heterogeneous Wireless Network
Authors: Göbbels, Stephan and Schmolders, Karsten
Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University
: publications@comnets.rwth-aachen.de
In Proceedings of European Wireless 2007, p. 6, Paris, France, 2007.
Publication Date: Apr, 2007
On page(s):6
ISBN: 2-912328-41-1
Abstract
Broadband wireless networks will be a key
feature of future communication technology. Mobilizing the
services and applications used from desktop PCs is the next
logical step in enhancing the Internet. But especially video
streaming services burden wireless networks with resource
consuming tasks. Due to this reason the realization of high
quality streams is hard to achieve through wireless LANs.
Especially in dense populated urban areas WLAN systems
suffer from shadowing and propagation effects which
limit the coverage range and performance. A complete
illumination in such environments with broadband access
is not achievable. Moreover areas of good coverage will
interchange with regions of only rudimentary or even no
wireless access. This heterogeneity in network performance
causes a lot of problems for streaming services. Usually they
require a fixed certain level in bit rate. Although streaming
protocols in the future will be adaptable to varying bandwidth
the quality reduction if often not acceptable. Buffering
techniques which are already employed on todays protocols
may partly solve the problem but only more sophisticated
approaches, namely Smart Caching, will fully succeed.
Smart Caching is a technique to overcome the problems
caused by the diverseness of available radio bandwidth. Its
purpose is to maximize resource utilization in regions of
broadband access and to live on buffered data in periods of
low network performance or broken connections. For video
streaming services this implies that a sufficient amount of
data is stored in the user terminal to bridge even longer areas
without reception. The optimization of user data caching and
transport is the main functionality of Smart Caching.
Author Keywords
Smart Caching, Video Streaming, Heterogeneous
Wireless Networks
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Bibtex
@INPROCEEDINGS{SgsSchmolEW07,
AUTHOR = {Göbbels, S. and Schmolders, K.},
TITLE = {Smart Caching for Supporting Video Streaming in Heterogeneous Wireless
Networks},
YEAR = {2007},
MONTH = {Apr},
PAGES = {6},
ADDRESS = {Paris, France},
BOOKTITLE = {Proceedings of European Wireless 2007},
AFFILIATION = {Department of Communication Networks (ComNets), Faculty 6, RWTH Aachen University},
ISBN = {2-912328-41-1},
KEYWORDS = {Smart Caching, Video Streaming, Heterogeneous
Wireless Networks},
URL = {https://www.comnets.rwth-aachen.de}
}
Signature in CN-Library = {QK017 (2007)}