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Accepted author manuscript, 1.14 MB, PDF document
Research output: Contribution to conference - Without ISBN/ISSN › Poster
Research output: Contribution to conference - Without ISBN/ISSN › Poster
}
TY - CONF
T1 - Cache as a service
T2 - 23rd International Conference on Computer Communications and Networks (ICCCN 2014)
AU - Georgopoulos, Panagiotis
AU - Broadbent, Matthew
AU - Plattner, Bernhard
AU - Race, Nicholas
PY - 2014/8
Y1 - 2014/8
N2 - High quality online video streaming, both live and on-demand, has become an essential part of consumers’ every-day lives. The popularity of video streaming as placed a heavy burden on the network infrastructure that now has to transfer an enormous amount of data very quickly to the end-user. To further exacerbate the situation, the Video-on-Demand (VoD) distribution paradigm uses a unicast independent flow for each user request. This results in multiple duplicate flows carrying the same video assets many times end-to-end. We present OpenCache: a highly configurable, efficient and transparent in-network caching service that aims to improve the VoD distribution efficiency by caching video assets as close to the end-user as possible. OpenCache leverages Software Defined Networking to benefit last mile environments by improving network utilisation and increasing the Quality of Experience for the end-user. Our evaluation on a pan-European OpenFlow testbed uses adaptive video streaming and demonstrates that with the use of OpenCache, the external link utilisation is reduced by 100%. Furthermore the streaming application receives better quality video and observes higher throughput, lower latency and shorter start up and buffering times.
AB - High quality online video streaming, both live and on-demand, has become an essential part of consumers’ every-day lives. The popularity of video streaming as placed a heavy burden on the network infrastructure that now has to transfer an enormous amount of data very quickly to the end-user. To further exacerbate the situation, the Video-on-Demand (VoD) distribution paradigm uses a unicast independent flow for each user request. This results in multiple duplicate flows carrying the same video assets many times end-to-end. We present OpenCache: a highly configurable, efficient and transparent in-network caching service that aims to improve the VoD distribution efficiency by caching video assets as close to the end-user as possible. OpenCache leverages Software Defined Networking to benefit last mile environments by improving network utilisation and increasing the Quality of Experience for the end-user. Our evaluation on a pan-European OpenFlow testbed uses adaptive video streaming and demonstrates that with the use of OpenCache, the external link utilisation is reduced by 100%. Furthermore the streaming application receives better quality video and observes higher throughput, lower latency and shorter start up and buffering times.
KW - Video-on-Demand (VoD)
KW - Caching
KW - Quality of Experience (QoE)
KW - Software Defined Networking (S
KW - OpenFlow
KW - OpenCache
M3 - Poster
Y2 - 4 August 2014 through 7 August 2014
ER -