ACM International Conference on emerging Networking EXperiments and Technologies
CoNEXT PhD Student Workshop, Nice, France, 2012


Enable Energy-Aware Mobile Data Offloading for Smartphones through Vertical Collaboration

Aaron Yi Ding - University of Helsinki
Pan Hui - Deutsche Telekom Labs/University of Cambridge
Markku Kojo - University of Helsinki
Sasu Tarkoma - University of Helsinki

Abstract:
Searching for mobile data offloading solutions has become
topical in recent years. In the Metropolitan Advanced Delivery 
Network (MADNet) project, we explore the potential of
multiple interfaces on smartphones through a collaborative
design to enable energy-aware WiFi-based mobile data offloading. 
We advocate that the vertical collaboration across
different wireless access technologies and network vendors is
the key to aggregate the power of mobile operators, WiFi
service providers, and end-users. Aiming at reducing the
energy consumption on smartphones, we propose an energy-aware 
algorithm supported by our collaborative architecture to 
avoid offloading to low-throughput WiFi networks
which may consume more energy. The evaluation of streaming 
applications on our prototyped Nokia N900 smartphones
demonstrates that we are able to achieve more than 80% energy 
saving. Our experiment in the wild also shows that our
design can tolerate the minor errors of localization, mobility
prediction, and offload capacity estimation.


Coding Team:

Aaron Yi Ding - University of Helsinki, FI
Bo Han - AT&T Labs, USA