IMDEA Networks Institute Publications Repository

Passive Communication with Ambient Light

Wang, Qing and Zuniga, Marco and Giustiniano, Domenico (2016) Passive Communication with Ambient Light. In: The 12th International Conference on emerging Networking EXperiments and Technologies (ACM CoNEXT 2016), 12-15 December 2016, Irvine, California, USA.

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In this work, we propose a new communication system for illuminated areas, indoors and outdoors. Light sources in our environments --such as light bulbs or even the sun-- are our signal emitters, but we do not modulate data at the light source. We instead propose that the environment itself modulates the ambient light signals: if mobile elements 'wear' patterns consisting of distinctive reflecting surfaces, single photodiode could decode the disturbed light signals to read passive information. Achieving this vision requires a deep understanding of a new type of communication channel. Many parameters can affect the performance of passive communication based on visible light: the size of reflective surfaces, the surrounding light intensity, the speed of mobile objects, the field-of-view of the receiver, to name a few. In this paper, we present our vision for a passive communication channel with visible light, the design challenges and the evaluation of an outdoor application where our receiver decodes information from a car moving at 18 km/h.

Item Type: Conference or Workshop Papers (Paper)
Depositing User: Qing Wang
Date Deposited: 17 Oct 2016 13:36
Last Modified: 17 Oct 2016 13:36

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