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The proliferation and daily congregation of modern mobile devices have created abundant opportunities for peer edge devices to share valuable data with each other. The short contact durations, relatively small sharing sizes, and uncertain data availability, demand agile, light weight peer based data sharing. In this paper, we propose Peer Data Sharing (PDS) that enables edge devices to discover which...
A 400-MS/s 8-b SAR ADC with 2-b/cycle conversion is presented in this paper. Compared with conventional SAR structure, an AUX-DAC is proposed to achieve high switch energy efficiency and low power. The proposed structure of ADC uses a shared interpolator, which not only reduces one DAC, but also separates the input signal from the comparator to reduce the kickback noise. To further increase the speed,...
Mainstream indoor localization technologies rely on RF signatures that require extensive human efforts to measure and periodically re-calibrate. Although recent crowdsourcing based work has started to address the issue, incentives are still lacking for wide user adoption. Thus the progress to ubiquitous localization remains slow. In this paper, we explore an alternative approach that leverages environmental...
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