• Publications
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Argos: practical many-antenna base stations
TLDR
This work presents the design, realization, and evaluation of Argos, the first reported base station architecture that is capable of serving many terminals simultaneously through MUBF with a large number of antennas (M >> 10), and reports an Argos prototype with 64 antennas and capable ofserving 15 clients simultaneously.
MoodScope: building a mood sensor from smartphone usage patterns
TLDR
A first-of-its-kind smartphone software system, MoodScope, which infers the mood of its user based on how the smartphone is used and provides mood as an important input to context-aware computing is reported.
Self-constructive high-rate system energy modeling for battery-powered mobile systems
TLDR
This work studies a self-modeling paradigm in which a mobile system automatically generates its energy model without any external assistance and employs a suite of novel techniques to achieve accuracy and rate much higher than that of the smart battery interface.
Context-for-wireless: context-sensitive energy-efficient wireless data transfer
TLDR
Simulations based on field-collected traces show that algorithms can improve the average battery lifetime of a commercial mobile phone for a three-channel electrocardiogram (ECG) reporting application by 39%, very close to the theoretical upper bound of 42%.
LiveLab: measuring wireless networks and smartphone users in the field
TLDR
This position paper presents LiveLab, a methodology to measure real-world smartphone usage and wireless networks with a reprogrammable indevice logger designed for long-term user studies, and demonstrates the feasibility and capability of LiveLab.
Chameleon: a color-adaptive web browser for mobile OLED displays
TLDR
Chameleon, a color adaptive web browser that renders web pages with power-optimized color schemes under user-supplied constraints, provides end users with important options, offloads tasks that are not absolutely needed in real-time, and accomplishes real- time tasks by carefully enhancing the codebase of a browser engine.
Power Modeling and Optimization for OLED Displays
TLDR
This work presents a comprehensive treatment of power modeling of OLED displays, providing models that estimate power consumption based on pixel, image, and code, respectively and proposes techniques that adapt GUIs based on existing mechanisms as well as arbitrarily under usability constraints.
Chameleon: A Color-Adaptive Web Browser for Mobile OLED Displays
TLDR
Chameleon is a color adaptive web browser that renders webpages with power-optimized color schemes under user-supplied constraints and offloads tasks that are not absolutely needed in real time, and accomplishes real-time tasks by carefully enhancing the codebase of a browser engine.
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