on factors affecting the usage and adoption of a nation-wide tv streaming service
TRANSCRIPT
On Factors Affecting the Usage and Adoption of aNation-wide TV Streaming Service
Dmytro Karamshuk1, Nishanth Sastry1, Jigna Chandaria2, Andy Secker2
1King's College London, 2BBC R&D
CD-GAIN: EPSRC project in collaboration with BBC R&D, http://bit.ly/cd-gain
CISCO Visual Networking IndexVideo usage is exploding…
• Video traffic is predicted to reach 79% by 2018
• Three-fourths of mobile traffic will be video by 2019
Users have a lot of choice in Video Access
Devices
Pricing models
Operators
• Different networks 3G/4G and WiFioften both together
• Different Pricing (unlimited and limited
data plans)
• Different devices (phones, tablets, PCs, Game Consoles, TVs, etc.)
We need to study the whole ecosystem to understand user choices
Users - 32 M/month
IP address – 20 M/month
Sessions - 1.9 Billion
May 2013 – Jan 2014
≈ 50% of population
First-mile View of the UK’s IP-ecosystem
UK Population – 64M
Only available in UK[ISPs are comparable]
[
Different perspectives on IP ecosystem
very large scale
cross ISPs view
DISCHINGER et al. [IMC’ 2007] SUNDARESAN et al. [ACM
CCR‘2011]KREIBICH et al. [IMC’ 2010]SÁNCHEZ et al. [NSDI’2013]
XU et al. [ACM CCR’2005]KARAGIANNIS et al. [ACM
CCR’2005]MAIER et al. [IMC ‘2009]
MOORE et al. [ACNM‘2005]
Last-mile:End-user
Middle Mile:Internet Service Provider
First Mile: Popular Website
small scale, highly sampled
single ISP single app
Longitudinal View across ISPsFixed-line Internet market (5 representative providers)
Mobile market is more dynamic than the fixed-line Internet market
Mobile Internet market (5 representative providers)
Data caps decrease market share
All-you-can-eat data(M1, M5)
Limited-cap data packages(M2 – M4)
All-you-can-eat plans boost user consumption
Temporal Patterns in different ISPsFixed-line accesses (F1-F5) peaks in the evening
Mobile users watch more during commutes
Fixed
Line
d ISP
sM
obile
, lim
ited d
ata ca
ps
Mobile Data Pricing and Behavior
+ =
Unlimited data plans (M1, M5) is a superposition of both
Fixed
Line
d ISP
sM
obile
, lim
ited d
ata ca
ps
Mob
ile, u
nlim
ited d
ata
More on Behavior: How Users Navigate across Content
Mobile users navigate more
Per user activity levels Per user completion ratio
… but complete less
Completing Watching across ISPs
Users complete watching across different sessions and networks
Fixed-line ISPs Mobile ISPs
Per user completion ratio
Speculative Content Pre-fetching
Pre-fetch at home Watch during commutes
Speculative pre-fetching can save up to 50% of mobile traffic
Prefetching does not work for Live Content
Ok, because live is low volume
We can provision for sport events in advance
… except for special sport events
Impact of Infrastructural SupportAverage per-user # sessions
Infrastructural support is important
Correlation with Ofcom statistics
Conclusion• mobile market is dynamic and all-you-can-eatboosts user consumption
• mobile consumption peaks duringcommutes• mobile content pre-fetching can save up to 50% ofmobile data except for special events
• infrastructural support is important to boost userconsumption